Pls Help Asap Like In 3 Minutes! I Will Give You Brainliest! Don't Tell Me To Download Something I Just Need An Answer! (13 Points)
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Evaluate the expression when x = 2, y = 5, and z = 4.
9y ÷ (2x + 1)
8
10
5
9
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Answer:
9 is the correct answer
(2×2+1)=5÷5×9=9
45 divided by 4+1
45/5=9
PLEASE HELP WILL GIVE BRAINLIEST ANSWER WHOLE PAGE PLEASE!!
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Answer: A: 4.5 hours
B: No, she won't catch up.
C: 21 miles/hour
IMPORTANT: Please don't just copy the answers from the top and read all the sections down below! You can always learn something new.
Step-by-step explanation (SHOULD READ):
Hello! I hope this will help:
Hector = H
Wanda = W
------------------------------------------------------------------------------
Distance of race = 42miles
[tex]V_{H} = 12miles/hour\\D_{H} = 42miles-18miles=24miles\\V_{W} = 16miles/hour\\D_{W} = 42 miles[/tex]
Vh = Velocity of Hector
Dh = Hector's distance to travel
Vw = Velocity of Wanda
Dw = Wanda's distance to travel
----------------------------------------------------------------------------
Now, let's solve these exercises!
A.Write and solve an equation to find when Wanda will catch up to Hector.
The key words are the bolded words!
What do we have to find?
When Wanda..... Here we can see one thing: time
The word when indicates that we gotta find t (time).
catch up to Hector....
catch up indicates the fact that Wanda's position will be equal to Hector's position (Pos Hector = Pos Wanda)
And to Hector indicates position. Hector's position
So, at point A we gotta find the time that it would take for Wanda to catch up to Hector.
Wanda's speed (velocity) is greater (higher) than Hector's. Which means, after a definite amount of time, Wanda will catch up to him.
How to find the time it would take for Wanda to catch up to Hector?
Well, we gotta solve for time. We know their velocities, and their distance from eachother.
As we know, the formula for velocity is [tex]V=\frac{d}{t}[/tex]
That is Velocity = Distance divided by time.
We know: Distance, Velocity
So, we need to find the difference between our velocities. That way, we can know how faster you are than him, and in this case, Wanda than Hector.
Vwanda-Vhector = 16miles/hour-12miles/hour
The difference between their velocities is 4miles/hour.
That only means, that Wanda, every hour will walk 4 more miles, than Hector, because she's faster, obviously.
Velocity is 4miles/hour.
The distance will be the distance between the 2 children. That's 18 miles.
V = d/t
4miles/hour = 18miles/t
Let's calculate for t.
Multiply t on both sides.
4miles/hour * t = 18 miles * t / t
the time on the right side cancels out.
4 miles/hour * t = 18 miles.
divide 4 miles/hour on both sides.
4miles/hour * t / 4miles/hour = 18 miles / 4 miles/hour
the 4 miles/hour cancels out on the left side.
t = 18 miles / 4 miles/hour
the miles cancel out, remaining just the hour on the right side.
t = 18/4hours
t = 4.5 hours
If Wanda would travel for 4.5 hours, she will catch up to Hector!
And just like that, we solve A.
Let's move on B, shall we ?
B.The question is: Will Wanda catch up to Hector before the race is complete? Explain.
Pretty easy.
So, the question asks if Wanda has enough time to catch Hector, before he actually wins.
We know that Wanda's time to catch Hector = 4.5 hours.
What we need to do?
We need to calculate the time it will take Hector to finish the race, and then we'll go to the next step.
Hector's distance to finish the race = 42 miles - 18 miles = 24 miles.
Hector has to go 24 more miles to win.
His velocity is equal to 12 miles/hour.
V = d/t
12 miles/hour = 24 miles / t
multiply t on both sides, and the t on the right side will cancel out.
12 miles/hour * t = 24 miles * t / t
12 miles/hour * t = 24 miles
divide 12 miles/hour on both sides, and on the left side it will cancel out.
12 miles/hour * t / 12 miles/hour = 24 miles / 12 miles/hour
t = 24 miles / 12 miles/hour
The miles will cancel out, on the right side.
t = 24 / 12 hours
t = 2 hours
Now , to finish point B:
Her distance = 42 miles
Her velocity = 16 miles/hour
Time = Distance/Velocity
Her time = 42 miles / 16 miles/hour
the miles will cancel out on the right side
Her time = 42 / 16 hours
Her time = 2.625 hours to reach the finish.
Let's quickly display their times :
Hector : 2 hours
Wanda : 2.625 hours
Wanda did not have enough time to finish.
Hector finished the race in 2 hours, and Wanda in 2,6 hours (aproximately) .
C.Question: At what constant speed could Wanda travel to catch up with Hector at the finish line? Explain (boring)
At what velocity could Wanda travel at, to catch up Hector and win? That's the question.
Velocity of Hector = 12 miles/hour
Distance of Hector = 24 miles
Time of Hector = 2 hours
------------------------------------------------
Velocity of Wanda = ? (The enough velocity to pass Hector)
Distance of Wanda = 42 miles
Time of Wanda = ? (It isn't 2.6hours because if Wanda walks faster she would have a smaller time)
Wanda's time = Hector's time, because we want to get at the finish exactly when Hector is at it.
Wanda's time = 2 hours
V = d/t
V = 42/2
V = 21 miles/hour
Just like that.
If Wanda would travel on her bike with 21 miles/hour she would've cought up to her friend.
Hi again! I really hope I helped you and I hope I didn't make any mistake, altough I don't I did. Succes!
Find the area of this polygon
Answers
Answer:
Step-by-step explanation:
The area is 9 because since is a square 3*3=9
Hope this helps
Have a good day :)
if uu can see the ss help!!
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EXPLANATION:
Answer:
C
Step-by-step explanation:
2. Heather had six 2-liter bottles of soda. She poured the soda into containers which each have a capacity of 1 gallon.
Part A: How many total liters of soda did Heather have? _______________________
Part B: How many gallon containers did she fill before she ran out of soda? _______________________
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Part B: She filled 2.63963 containers = 3
Part A: Heather had a total of 12 liters of soda.
Part B: She filled 3 gallon containers before running out.
Part A: To find the total liters of soda Heather had, we need to convert the 2-liter bottles into liters and then sum them up.
Each 2-liter bottle is equal to 2 liters.
Since Heather had six 2-liter bottles, the total amount of soda in liters is:
6 bottles * 2 liters/bottle = 12 liters
So Heather had a total of 12 liters of soda.
Part B: To determine how many gallon containers she filled before running out of soda, we need to convert the liters of soda into gallons and then divide by the capacity of each container.
Since 1 gallon is equal to approximately 3.785 liters, we can divide the total liters by the conversion factor:
12 liters / 3.785 liters/gallon ≈ 3.17 gallons
Heather filled approximately 3.17 gallon containers before running out of soda. However, since we can't have a fraction of a container, we can assume she filled 3 gallon containers before running out.
To know more about liters click here :
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Jonas wants to paint the walls of his bedroom and the ceiling. The dimensions of his room are 7 feet by 12 feet by 8 feet.
What statements about calculating the surface area of the walls to be painted are correct? Select all that apply.
Include the areas of all six faces.
Include the areas of five faces.
Include the areas of four faces.
The surface area that will be painted is 376 ft2.
The surface area that will be painted is 472 ft2.
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Answer:
The surface area that will be painted is 376 ft2.
What let the citizens know the battle of bull run started? Was it like the battle of Fort Sumter where they heard the gunshots?
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Answer:
Its was the gunshots. the citizens heard the gunshots.
Step-by-step explanation:
What is the area of this semi-circle
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Answer:
25.1325
Step-by-step explanation:
A=[tex]\pi[/tex]r^2
radius is half of 8
A=[tex]\pi[/tex]4^2
solve gets 50.265
then divide by 2
25.1325
Answer:
25.12 cm2
Step-by-step explanation:
The area of a semicircle is half of the area of the circle. As the area of a circle is πr2. So, the area of a semicircle is 1/2(πr2 ), where r is the radius. The value of π is 3.14 or 22/7.
A = πr²/2 = 8 * π [in²] ≈ 25.1327 [in²]
[ 45 - ( 6 + 3 )] X 27
HELP
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Hope this helped
[45-9|•27
36•27
972
could someone please help me with this question?
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Her income would be 100%
She donated 20% of her income.
20% of 100% is 1/5
At Hoffman's Bike Rentals, it costs $23 to rent a bike for 5 hours.
How many hours of bike use does a customer get per dollar?
Answers
Answer:
4.6/1
Step-by-step explanation:
23 = 5
1 = 4.6
Answer:
0.19 hours per Dollar
Step-by-step explanation:
Given data
Cost of rental= $27
Time = 5 hours
Hence
for $27 a customer gets 5 hours
for $1 a customer gets x hours
cross multiply
27x = 5*1
x= 5/27
x=0.185
x=0.19
Mr. Johnson purchased 20 concert tickets for a total of $225. The concert tickets cost $15 for adults and $10 for children under twelve. How many tickets for children under twelve did Mr. Johnson purchase?
Answers
Answer:
15
Step-by-step explanation:
a + c = 20
Rewrite the second equation so it has a value for c
c= 20 -a
Now using substitution method replace the c for the given value
15a + 10(20-a)=225
15a +200-10a=225
Combine like terms
5a +200=225
5a=25
a=5
So 5 adult tickets were bought and 15 children tickets
PLs help me with this problem.
Brent's neighborhood is putting down new mulch at the playground and he is in Charge of buying the mulch. One bag covers 3 yd.². How many bags will he need?
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Answer:
93 bags
Step-by-step explanation:
The area of the playground is: 52(16) or 832ft
There are 3 feet in one yard, meaning one bag covers 9 feet
832/9 = 92.4444
Which numbers are equivalent to 130% ? Select all that apply.
A. 1.3
B. 1310
C. 13100
D. 0.130
E. 1.03
F. 1310
REMEBER SELECT ALL THAT APPLY
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chang wants to know if he is improving his skill on the cello. he created a scatter plot and drew a line of best fit
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Answer:
pretty sure the answer is A.
Step-by-step explanation:
have a great day or night
I will give brainliest! :)
In a right triangle, the length of one leg is 4 units. The length of the other leg is 5 units. What is the length of the hypotenuse?
Answers
Answer:
√41
Step-by-step explanation:
Use the formula: a² + b² = c²
So it would be:
4² + 5² = c²
16 + 25 = c²
41 = c²
√41 = c
Answer:
D) 41
Step-by-step explanation:
A coordinate grid is shown below: A coordinate grid from negative 2 to 0 to positive 2 is drawn. There are three grid lines between a whole unit on the grid. Part A: Which point represents the origin? (2 points) Part B: Point (-1, 1) is reflected across the y-axis. Give the coordinates of the reflected point and explain how you know. (4 points)
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Answer:
Part A: 0
Part B: (-1,-1) since point (-1,1) is located in quadrent four when it is reflected over the y axis the second point would be located in quadrent three and the x and y would both be negative.
Step-by-step explanation:
Part B: Gabe walks from his house to the library,
then to the gymnasium. What is the total
distance he walked?
A. 9 kilometers
B. 8 kilometers
C. 11 kilometers
D. 10 kilometers
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Answer:
A. 9 kilometers
Step-by-step explanation:
math=heaven or math=hell
(or you can solve this for 5 points)
Answers
Answer:
51 [tex]\frac{1}{35}[/tex]ft²
Step-by-step explanation:
6 5/7 = 47/7
7 3/5 = 38/5
----------------------
a = 47/7 * 38/5
a = 1786/35
Reduce
a = 51 [tex]\frac{1}{35}[/tex] ft²
maaaath. isssss. heeeeellllll.
Help me please thank you
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Answer:
the answer is x=2
Step-by-step explanation:
he did not distribute the equation properly
Which equation represents the graph?
A: y equals negative 2 x plus one half
B: y equals negative one-half x plus one half
C: y = −2x − 2
D: y equals negative one-half x minus 2
Answers
Answer:
D: y equals negative one-half x minus 2
Step-by-step explanation:
slope
The table shows the relationship between the participants walking and running for the week's cross-country practices.
Walk (laps) 3 B 15
Run (laps) 5 10 D
Total (laps) A C 40
At this rate, how many laps will the participants walk if the total distance is 24 miles? How many miles will they run?
They will walk 7 laps and run 17 laps for a total of 24 miles.
They will walk 15 laps and run 9 laps for a total of 24 miles.
They will walk 9 laps and run 15 laps for a total of 24 miles.
They will walk 6 laps and run 18 laps for a total of 24 miles.
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Answer: it was just the number of the 2 positive for the following number
Using the easy chili recipe below, what is the unit rate of beans per pound of hamburger? Round to the nearest hundredth if necessary.
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let me see how many we working with
Which of the following can have a positive affect on your credit score
onwing more money than you earn
losing your job
paying your bills on time
having a high debt to income ratio
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What is 47/15 rounded to the nearest hundredth?
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Answer:
3.13
Step-by-step explanation:
47/15
47 ÷ 15 = 3.1333333...
The answer is a terminating decimal, so we need to round it. In this case, we need to round to the nearest hundredth.
3.133333... = 3.13
The value of 47/15 rounded to the nearest hundredth will be equal to 3.13
What is a fraction?The fraction is defined as the division of the whole part into an equal number of parts.
The solution of the given fraction is as follows:-
= 47 / 15
We need to divide 47 by 15
47 ÷ 15 = 3.1333333...
Therefore the value of 47/15 rounded to the nearest hundredth will be equal to 3.13
To know more about fractions follow
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Please help me. Refer to the image below.
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Answer:
bit.^{}
ly/3gVQKw3 this is the link of the other guy
the other 3 don't refer to the rest of the answers
2. Mrs. Murphy bought 3 boxes of cereal at $2.98 each, 1 gallon of milk for $4.99, a bottle of Lysol wipes for $5.99 and 2 loaves of bread for $3.99 each. She paid 6% tax on the Lysol wipes. What other information is necessary to find Mrs. Murphy's correct change?
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Answer:
We need to know how much money she handed the cashier, to be able to calculate the change she should get back.
Step-by-step explanation:
3 x 2.98 = 8.94
1 x 4.99 = 4.99
2 x 3.99 = 7.98
5.99 + (5.99 x 0.06) = 6.35
8.94 + 4.99 + 7.98 + 6.35 = 28.26
(Did this in case you get hit with a part 2 and need to calculate it out) :)
Out of 75 students, 45 students said that their favorite ice cream flavor was chocolates. what percentage of students like chocolate ice cream the best?
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Answer: 60%
Step-by-step explanation: just do 45/75 and you get 0.6
Answer: 60
Step-by-step explanation:
multiply
In each equation, select an operation to make the equation true by making the operation happen where the question mark appears.
PLEASE HELP ME
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The first one is +
The second one is x (multiply)
The third (I am not sure)
Forth is a - (minus)
Fifth is a - (minus)
And last (I am not sure)
Sorry
Help please I don't understand
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Answer:
D 11/12
Step-by-step explanation:
the fractions round up by 2
example, 2/12, 4/12, 6/12, 8/12.... etc