[tex]\\ \sf\longmapsto 3\dfrac{1}{3}-2\dfrac{5}{12}[/tex]
[tex]\\ \sf\longmapsto \dfrac{10}{3}-\dfrac{29}{12}[/tex]
[tex]\\ \sf\longmapsto \dfrac{40-29}{12}[/tex]
[tex]\\ \sf\longmapsto \dfrac{11}{12}[/tex]
Last part of my brothers homework
Romeo bought a mixture of 20-cent, 35-cent,
and 50-cent valentines. The number of 20-cent
valentines was 1 more than twice the number of
35-cent valentines, and the number of 50-cent
valentines was 2 less than the number of
35-cent ones. If he spent $4.20 all together,
how many valentines of each kind did he buy?
9514 1404 393
Answer:
20-cent: 935-cent: 450-cent: 2Step-by-step explanation:
Let x, y, z represent the numbers of 20-cent, 35-cent, and 50-cent valentines. Then the given relations can be written as ...
x = 1 +2y
z = -2 +y
0.20x +0.35y +0.50z = 4.20
__
Using the first two equations to substitute for x and y in the third equation, we get ...
0.20(1 +2y) +0.35y +0.50(-2 +y) = 4.20
1.25y -0.80 = 4.20 . . . . . simplify
1.25y = 5.00 . . . . . . . . . . add 0.80
y = 4 . . . . . . . . . . . . . . . divide by 1.25
x = 1 +2(4) = 9
z = -2 +4 = 2
Romeo bought 9 20-cent, 4 35-cent, and 2 50-cent valentines.
Find the area of the rectangle.
(3y+1) miles
25 miles
Answer:
Srectangle: (3y+1)*25=75y+25(cm^2)
Step-by-step explanation:
Srectangle= w*L
Think About the Process The length of a rectangle is twice the width. The area of the rectangle is
54 square units. Notice that you can divide the rectangle into two squares with equal area. How
can you estimate the side length of each square? Estimate the length and width of the rectangle.
+
27
B. Estimate
4
C. Estimate 27.
D. Estimate 54
The rectangle is
(Round to the nearest tenth as needed.)
units long and units wide.
0
vo
(10
More
Enter your answer in the edit fields and then click Check Answer.
Answer:
27
Step-by-step explanation:
pls solve and put in simplest form
Answer:
Step-by-step explanation:
1. 20
2. 100
3. 25
4. 45
5. 50
6. 54
7. 80
8. 192
9. 33
10. 128
Evaluate x square2 +12,when x=3
Answer:
21
Step-by-step explanation:
3^2=9
9+12=21
Keep it up
20 points if these are correct pls
Step-by-step explanation:
14. 8
15. 60
16. 42
17. 45
18. 2
19. 8
20. 13
21. 18
o 14 . —> 8
o 15. —> 60
o 16 . —> 42 ( not 43 )
o 17. —> 45
o 18. —> 2
o 19. —> 8 (not 4 )
o 20. —> 13
o 21 —> 18 (not 12)
I hope I helped you^_^
Maggie studied for 2/5 of an
hour. Julie studied for 1/4 of an
hour. How much longer did
Maggie study?
Answer: 3/20
Concept:
When encountering questions that ask for [how much longer A comparing to B], the basic operation would be the value of A subtracted by the value of B.
Solve:
Given information
Maggie study time = 2/5 hours
Julie study time = 1/4 hours
Given expression deducted from the concept
Maggie (study time) - Julie (study time)
Substitute values into the expression
2/5 - 1/4
Find the denominators' Least Common Multiple (LCM)
First five multiples of 5: 5, 10, 15, 20, 25
First five multiples of 4: 4, 8, 12, 16, 20
Since [20] is the first term that appears in both multiples, it would be the LCM of 4 and 5
Convert the fractions to common denominator
2/5 = (2 × 4) / (5 × 4) = 8 / 20
1/4 = (1 × 5) / (4 × 5) = 5 / 20
Simplify by subtraction
=8/20 - 5/20
=(8 - 5) / 20
=[tex]\boxed{\frac{3}{20} }[/tex]
Hope this helps!! :)
Please let me know if you have any questions
Give THREE reasons why it is important to revise your study methods
If X= 9 and Y = 3, what is XY
Answer:
[tex]x = 9 \\ y = 3 \\ xy = x \times y = 9 \times 3 \\ = 27[/tex]
14 subtracted from three times a number is -53 find the number
Step-by-step explanation:
let the number
[tex] = x[/tex]
Then:
[tex](3x - 14) = 53 \\ 3x = 53 + 14 \\ 3x = 67 \\ x = 67 \div 3 = 22.33[/tex]
Answer:
[tex]number = x \\ 3x - 14 = - 53 \\ 3x = - 53 + 14 \\ 3x = - 39 \\ x = \frac{ - 39}{3} \\ x = - 13 \\ thank \: you[/tex]
If two vectors are perpendicular then what is the condition
Answer:
If two vectors are perpendicular, then their dot-product is equal to zero. The cross-product of two vectors is defined to be A×B = (a2_b3 - a3_b2, a3_b1 - a1_b3, a1_b2 - a2*b1). The cross product of two non-parallel vectors is a vector that is perpendicular to both of them.
Step-by-step explanation:
f(x)=19x+11 find f(4)
Answer:
87
Step-by-step explanation:
f(x)=19x+11
Let x = 4
f(4) = 19*4 +11
=76 +11
= 87
Answer:
[tex]f(x) = 19x + 11 \\ f(4) = 19 \times 4 + 11 \\ = 76 + 11 \\ = 87 \\ thank \: you[/tex]
A building is 1 foot from a 7 foot fence that surrounds the property a worker wants to wash a window in the building 10 foot from the ground he plans to place a ladder over the fence so it rest against a building he decides he should place a ladder 7 feet from the fence for stability to the nearest 10th of a foot how long with the latter need to be
Answer:
The guitar's volume was amplified, but it was hard to hear the notes since it was so loud.
What word or phrase is a signal word that a context clue might be nearby to help determine the meaning of "amplified"?
Step-by-step explanation:
2259 round to nearest hundred
Answer:
2300
Step-by-step explanation:
when rounding 2259 to the nearest hundred look at the digit in the tens place, if the number is 5 or higher, you round up to 2300, if its 4 or less, you round down to 2200. hope this helps!
Which of the numbers below are not factors
of 108?
1, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 72, 108
NO LINKS PLEASE
People drive on average 15,099 miles per year about how many miles each week is that ?
Answer:
The answer is 2,157
Step-by-step explanation:
15,099÷7=2,157
Which is the simplified form of the expression
Answer: B
Step-by-step explanation:
Answer:
[tex]3( \frac{7}{5}x + 4) - 2( \frac{3}{2} - \frac{5}{4} x) \\ \\ \frac{21}{5} x + 12 - 3 + \frac{5}{2} x \\ \frac{21}{5} x + \frac{5}{2} x + 9 \\ \frac{67}{10}x + 9[/tex]
The area of the rectangle is 68 square units. Notice that you can divide the rectangle into two squares with equal area. How can you estimate the side length of each square? Estimate the length and width of the rectangle.
let "L" represent the length of the rectangle
let "W" represent the width of the rectangle
Area of the rectangle = LW
68= LW --------eqn 1
Area of a square = L/2 ×L/2
34= L^2/4
136=L^2
L= 11.67
From eqn 1 , W=68/L
W=68/11.6619
W=5.83
what is ninety two thousand one hundred seventy
Answer:
92170
I hope it's helps you
How do I simplify 2m : 125cm
Step-by-step explanation:
125cm = 1.25m.
2m : 1.25m = 8:5
3 pizza are shared equally between 10 people. Wat fraction of a pizza does each person receive?
Answer:
3/10
Step-by-step explanation:
Take the number of pizzas and divide by the number of people
3 pizzas / 10 people
Each person got 3/10 of a pizza
Answer:
[tex] \frac{3}{10} [/tex]
Step-by-step explanation:
[tex] \frac{pizza}{number \: \: of \: \: \: people} \\ \frac{3}{10} [/tex]
Each person received 3/10 of pizza
what is payment undercast
Answer:
Undercast refers to a forecasting error when estimated numbers turn out to be lower than realized numbers. The estimates that are valued can include sales, expenses, income, cash flows, or any other financial account or metric.
Hope it helps you.d is the midpoint of AC.what is the lenght of AB
look above for picture or below
Answer:
you would add 3x+2 and 6x-4
9x -2 is the length
Step-by-step explanation:
Calculate x,y and z fully and give reasons.
Answer:
X=67°,Z=113°,Y=0°
Step-by-step explanation:
2.1=
X+113°=180°(being straight angle)
Or, X=180°-113°
Or,X=67° answer
Now,
Z=113°(being alternative angle)
Again,Y+Z+X=180°(being co-interior angle)
Or, Y+113°+67°=180°
Or,Y+180°=180°
Or,Y=180°-180°
=Y=0° answer
Find (f-g) f (x)=2χ 2-2and g (x)=4x+1
A6x2-x
B 2x2+4x+3
C 2x2-4x-1
D 2x2+4x1
Answer:
None of the above.
Step-by-step explanation:
Just subtract the functions
it cost 25 to rent a car each day a 0.95m per mile
Simplify and show step by step 30 POINTS!
Step-by-step explanation:
the explanation is in the diagram above
Which is the correct conjugate for √3+2?
A) 2-√3
B) -3-√2
C) 3+√2
D) 3-√2
[tex]\\ \rm\longmapsto \overline{z}=-(z)[/tex]
[tex]\\ \rm\longmapsto \overline{z}=-(x+iy)[/tex]
[tex]\\ \rm\longmapsto \overline{z}=-(\sqrt{3}+2)[/tex]
[tex]\\ \rm\longmapsto \overline{z}=-\sqrt{3}-2[/tex]
Find the difference.
1/2 - 1/8
Answer:
3/8
Step-by-step explanation:
1/2=⁴/8 and ⁴/8-¹/8=³/8