Answer:
12
Step-by-step explanation:
8-(-4)=8+4=12
Simply.
-2/5 + 4/3
Show work.
Answer:
14/15
Step-by-step explanation:
Find common denominators. Note that what you do to the denominator, you do to the numerator.
Use 15 as the common denominator:
(-2/5)(3/3) = (-6/15)
(4/3)(5/5) = (20/15)
Combine like terms:
-6/15 + 20/15 = (20 - 6)/15 = 14/15
14/15 is your answer.
~
Answer:
[tex]\frac{14}{15}[/tex]
Step-by-step explanation:
Write all numerators above the least common denominator 15
[tex]\frac{-6+20}{15}[/tex]
Add -6+20
[tex]\frac{14}{15}[/tex]
If this helped, please mark me brainliest.
I will share how to find the constant rate of change and constant of proportionality from a table or a graph.
(how do you find it if given a table or a graph, the answer is the same)
Answer:
Step-by-step explanation:
Angela car leak 6 oz of oil in 9 days what is the unit rate of the oil leak
Pls, help!!!!!!!!!!!!!!!!!
Answer:
[tex]y^{19}[/tex]! Please read explanation!
Step-by-step explanation:
Hello!
When there are 2 variables that are the same (in this case y), you add the exponents! In this case, we have [tex]y^{5}[/tex] and [tex]y^{14}[/tex] , and since 5 and 14 are the exponents, we add them! 5+14 is 19, so the answer is [tex]y^{19}[/tex]!
I hope this makes sense! If you liked my answer, please give it a rating and a Thanks would be nice, too!
Have a great day!
Which expression would be easier to simplify if you used the commutative property to change the order of the number
A. 1/4+1/2+3/4
B. 3/2+1/2+(-57)
C. 130+70+(-61)
D. -30+(-90)+12
(I will give brainliest if the answer is correct and accurate.)
Please solve (8th grade pre-algebra)
Answer: Z
Step-by-step explanation: The only correct answer is Z, i used a trusted website for this, so its most likley correct.
Hope this helps!
:D
At a bus station, buses depart at a rate of 3 every 10 minutes. At this rate, how many buses would you expect to depart in one hour?
A. 6 B. 15 C. 18 D. 30
Answer:
Well, there are 60 min. in one hour, so 10*6=60. Then we have to multiply 3 by 10 as well. So the answer is D: 30 busses.
Answer: the answer is c.(18)
Step-by-step explanation:
If 3 depart every 10 minutes there are 60 minutes in an hour. So 3 buses times 6 10’s would = 6x3=18
HELP PLS
DOn'T use the google conversions
Answer: 12.9
Step-by-step explanation:
Change each proportion so that it is __ kg = 1 pound and __ stone = 1 pound. Once you do this you should get that 0.45 kg = 1 pound and 0.07 stone = 1 pound. Then, you set up another proportion using these conversions, which would be 0.45 kg over 0.07 stone is equal to 83 kg over x stone. Once you solve for x, you get the answer of 12.9
Which graph shows the result of dilating this figure by a factor of One-third about the origin?
On a coordinate plane, triangle A B C has points (negative 6, 6), (6, 6), (6, negative 6).
On a coordinate plane, triangle A prime B prime C prime has points (negative 2, 2), (2, 2), (2, negative 2).
On a coordinate plane, triangle A prime B prime C prime has points (negative 3, 3), (3, 3), (3, negative 3).
On a coordinate plane, triangle A prime B prime C prime has points (Negative 18, 18), (18, 18), (18, negative 18).
On a coordinate plane, triangle A prime B prime C prime has points (negative 12, 12), (12, 12), (12, negative 12).
Pls its on edge i give brainliest
Answer:
c
Step-by-step explanation:
Please help me out! TY :D
Answer:
yes google has moat of the answers for these
Help please!!!! there are three more after this.
Level 3
Which expression shows this problem.
Mrs. Sheffield has 20 cups of flour. She uses 3 1/2 cups to make cookies and 5 3/4 cups to make pancakes.
How many cups of flour does Mrs. Sheffield have left?
20 - (3 1/2 + 5 3/4)
20 + (3 1/2 - 5 3/4)
5 3/4 - 3 1/2 - 20
Solve the problem in #1.
Only write your final answer (do not explain how you solved)
In Exercises 1–4, find each sum or difference.
start fraction 5 over 10 end fraction minus start fraction 3 over 10 end fraction
A. one-fifth
B. start fraction 8 over 10 end fraction
C. start fraction 42 over 5 end fraction
D. one-tenth
Answer:
a 1/5
Step-by-step explanation:
because if you do 5/10-3/10 you get 2/10
then you simplify by 2 which means you do 2 divided by 2 which
is 1 then you do 10 divided by 2 which is equal to 5 so your
answer is indeed 1/5
1. The function f(t) is equal to the mass of a pumpkin,
in kilograms, t days after its seed was planted.
Part A:
What does the notation f(80) = 3 mean?
Part B:
Use function notation to show 41 days after the
pumpkin seed is planted the pumpkin
has a mass of 1.2 kg.
Dillon decided to construct a rectangular deck in his back yard. It is 16 feet long and 13 feet wide. He is trying to determine whether he should construct the deck using cedar or a pressure treated material.
The cedar costs $21.09 per square foot for materials.
The pressure treated material costs $18.90 per square foot for materials.
The cost for labor will be the same for either material.
How much money would Dillon save installing a deck with pressure treated material instead of cedar? Explain or show your reasoning. You may use diagrams, drawings, or equations as well as words.
Answer:
Step-by-step explanation:
d for yearsd for yearsd for yearsd for yearsd for yearsd for yearsd for yearsd for years
LaTanya leaves her house at 12:30 P.M. and bikes at /12 miles per h to Marta’s house. She stays at Marta’s house for 90 min. Both girls walk back to LaTanya’s house along the same route at ./.2.5 miles per h They arrive at LaTanya’s house at 3:30 P.M. How far is Marta’s house from LaTanya’s house?
Marta's house is 3.10 miles from Latanya's house
What is speed?Speed is defined as the ratio of the time distance traveled by the body to the time taken by the body to cover the distance.
Given that Latanya leaves her house at 12:30 p.M. She bikes at 12 mi/hr to Marta's house She stays at Marta's house for 90 minutes Both girls walk back to Latanya's house at 2.5 mi/h They arrive at Latanya's house at 3:30 p.M.
We need to know how far is Marta's house from Latanya's house
∵ Latanya starts her trip at 12:30 p.M.
∵ She returns home at 3:30 p.M.
∴ The time of her trip is → 3:30 - 12:30 = 3 hours
- But she stays at Marta's house for 90 minutes
∵ 1 hour = 60 minutes
∴ 90 minutes = 90 ÷ 60 = 1.5 hours
∴ The time from her house to Marta's house and from Marta's house to her house is → 3 - 1.5 = 1.5 hours
Assume that the distance from her house to Marta's house is d and the time from her house to Marta's house is t₁ and the time from Marta's house to her house is t₂
∵ Latanya bikes at 12 mi/h to Marta's house
∵ Distance = speed × time
∴ d = 12 × t₁
∵ Both girls walk back to Latanya's house at 2.5 mi/h
∴ d = 2.5 × t₂
Equate the two expressions of d
∴ 12 = 2.5 ⇒ (1)
∵ t₁ + t₂ = 1.5
Subtract from both sides
∴ t₂ = 1.5 - t₁ ⇒ (2)
Substitute equation (2) in equation (1)
∴ 12t₁ = 2.5(1.5 - t₂ )
∴ 12 = 3.75 - 2.5
Add 2.5 t₁ to both sides
∴ 14.5t₁ = 3.75
Divide both sides by 14.5
t₁ = 15 / 38 hour
∴ She spends 15/58 hours biking Marta's house. Let's find d
∵ d = 12t₁
∴ d = 12 x ( 15 / 38 ) miles
Therefore, Marta's house is 3.10 miles from Latanya's house
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A cruise ship is traveling at a speed of 20 knots. A knot is approximately equal to 1.151 miles per hour. What is the approximate speed the ship is traveling in yards per second? Round to the nearest tenth.
Answer:
11.25
Step-by-step explanation:
Unit rate for pants to shoes?
Answer:
2:1
Step-by-step explanation:
for every one shoes you get two pants
Subtract. Write your answer in scientific notation.
(5.83×104)–(1.22×104)
This is the correct answer
What does c = 331t and t = (1/100)c equal?
Answer:
c = 331t c = 100t
Step-by-step explanation:
Hope this helps.
2 2/7 :(0.6x)= 4/21 :0.25 help pls BTW ITS NOT 50 !!
answer: x=0.025253
Step-by-step explanation:
Let's solve your equation step-by-step.
22
7
(0.6x)=
4
21
(0.25)
Step 1: Simplify both sides of the equation.
1.885714x=
1
21
Step 2: Divide both sides by 1.885714.
1.885714x
1.885714
=
1
21
1.885714
x=0.025253
The value of x from the given ratios 2 2/7 :(0.6x)= 4/21 :0.25 will be 5.
What is an equation?An equation is an expression that shows the relationship between two or more numbers and variables.
[tex]2 \frac{2}{7}[/tex] :(0.6x) = 4/21 :0.25
Therefore, solve the mixed fraction, we get
16/7 :(0.6x) = 4/21 :0.25
Step 1: Simplify both sides of the equation.
16/7 :(0.6x) = 4/21 :0.25
(16/7) / (0.6x) = (4/21 ) / (0.25 )
Step 2: Divide both sides
(16/7) / (0.6x) = (4/21 ) / (0.25 )
Cross multiply:
(16/7) x (0.25 )= (4/21 ) x (0.6x)
4/7 = 2.4x /21
84 = 16.8x
Divide both sides by 16.8:
x = 5
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It takes Kevin 15 minutes to drive 5 1/2 miles.
How many miles does Kevin drive per minute?
a) 11/30
b) 5/6
c)2 8/11
d) 3
Answer: 11/30 miles per minute
Step-by-step explanation:
To get miles per minute
Divide the distance by the time
5 1/2 ÷ 15 . Change 5 1/2 to an improper fraction 11/2
invert the divisor and multiply: (Multiply by the reciprocal of 15: 1/15)
11/2 × 1/15 = 11/30
Here, we are required to determine how many miles does Kevin drive per minute.
The number of miles Kevin drives per minute is 0.3667miles.According to the question, Kevin drives 5 1/2 miles (5.5 miles) in 15 minutes.
To determine how many miles Kevin drives per minute, we need to determine Kevin's speed over the 15 minutes in which he covered 5.5 miles.
Speed = distance/timeSpeed = 5.5miles/15minutes
Therefore, Speed = 0.3667 miles per minute.
Ultimately, Kevin drives 0.3667miles per minute.
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Select all the correct answers.
Eddie is practicing wind sprints during his summer break. He’s able to run 72 meters in 12 seconds. If d represents distance and t represents time, which equation represents this proportional relationship?
dt = 6
1/6d=t
d = 6t
d=1/6t
Answer:
the time over distance would be 1/6 every second that Eddie runs in 6 meters
Step-by-step explanation:
Find the tables with unit rates greater than the unit rate in the graph. Then arrange these tables in order from least to greatest unit rate.
A. x y
7 13
14 26
B. x y
5 9
10 18
C. x y
9 17
18 34
D. x y
11 21
22 42
E. x y
10 19
20 38
F. x y
13 25
26 50
G. x y
12 23
24 46
Is the answer C??????? I really don't know it's a guess ;-;
Answer:
I think the answer would be : A,B,D,G,F
Step-by-step explanation:
The variable y varies directly with the variable x.
A 2-column table with 3 rows. Column 1 is labeled x with entries 2, 10, 14. Column 2 is labeled y with entries 3, 15, blank.
If the value of x is 14, what is the value of y?
Answer:
I think the answer might be 21 (add half of the number to the number) but it might be incorrect
Step-by-step explanation:
Answer:
The answer is 21
Step-by-step explanation:
I just took the quiz. for this question lets take the first example 2-3 if you take half of 2 which is 1 then add 2 its 3 and for the next one 10-15 if you take half of 10 which is 5 then add 10 its 15 and then finally 14-? if you take half of 14 which is 7 then add 14 its 21 hope this helps
3.5x + 3 - 4.9x = 4(0.4x + 3)
PLEASE HELP, WITH STEPS TOO
Mr. Davis has displayed data boxes using box and whisker plots representing the scores on the first exam in his two calculus classes. Using these plots, what can Mr Davis correctly deduce about how the scores of the two classes compare?
Brad measured the length of an object as 2.1 times 10 Superscript 4cm. Which items might he have measured? Check all that apply.
length of a city block
length of a city park
height of a person
distance across a city
height of an apple tree
width of a screen in a theater
depth of water in a swimming pool
Answer:
length of a city block
length of a city park
Step-by-step explanation:
Interest rates have dropped steadily over the last six months. Each month they have decreased by
1
4
point.
A. Write an expression to represent the total change of rates over the last six months.
B. Find the total change. Make sure to express your answer as a mixed number in lowest terms.
Answer:
Answer with explanation:
Let the Initial Interest rate = x
It is given that each month Interest rate decreases by point.
A.→ Expression which represent the total change of rates over the last six months
Let total change of rate over the last six month= y
B.→
Total Change
Step-by-step explanation:
A small, test batch of lemonade used 1/4 cup of sugar added to 1 cup of water and 1/4 cup of lemon juice. After confirming it tasted good, a larger batch is going to be made with the same ratios using 10 cups of water. How much sugar should be added so that the large batch tastes the same as the test batch?
Hint: there is extra information in this.
Answer:
2 1/2 cups of sugar
Step-by-step explanation:
Answer:
2.5 or cups of sugar
Step-by-step explanation:
Since the problem multiplied the water by ten, to keep the ratio even we multiply everything else by ten. 1/4*10= 2.5 We do not need the information about the lemon juice since we are trying to figure out the amount of sugar.
I need help ASAP!....
Answer:
3.3 miles
Step-by-step explanation:
0.5 = 5.6 $
mileage rate = 1 mile for $2
2.5 = $1.6
1.6 / 0.2 = 8
8×0.1 = 0.8
2.5+0.8=0
3.3 miles