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lara [203]
3 years ago
15

Select the 2 common denominators for 1/4 and 7/10 .

Mathematics
1 answer:
irina [24]3 years ago
5 0

Answer:

B) 20 and E) 40

Step-by-step explanation:

4 = 2*2= 2²

10=2*5

Common denominators = 2²*5=4*5=20

20,40

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LiRa [457]

Answer:

Hope this helps!

Step-by-step explanation:

2L + 3S = 83

 

4L + 8S = 197

 

Multiplies the top equation by -2.

-4L + -6S = -166

 

4l  + 8S = 197

 

 

Adding them together...

 

2S = 31

 

S = 31/2 = 15.5

 

Plugging into the first equation:

 

 2L + 3S = 83

 

 2L + 3(15.5) = 83

 

2L + 46.5 = 83

 

2L = 83 - 46.5

 

2L = 36.5

 

L = 36.5/2 = 18.25

 

check:

 

2L + 3S = 2(18.25) + 3(15.5) = 36.5 + 46.5 = 83

 

4L + 8S = 4(18.25) + 8(15.5) = 73 + 124 = 197

 

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The small box weighs 15.5

6 0
2 years ago
Is the answer a b c or d ??? kinda need this to pass
Afina-wow [57]
Put the equations in for r and c

p(c)=10x-(4x+15)
put the negaive in 
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Answer is C
5 0
4 years ago
Your friend George is 6 feet tall and his shadow is 10 feet long. At the same time, the shadow of the flagpole was 85 feet long.
Leokris [45]

Answer:

51 feet

Step-by-step explanation:

Let

x -----> the height of a flagpole

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Using proportion

\frac{6}{10}=\frac{x}{85} \\\\x=6*85/10\\\\x=51\ ft

8 0
3 years ago
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8 0
3 years ago
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Look at the following expression.
kow [346]

Answer:

f

f

f

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Step-by-step explanation:

what if w=3 or 8

8 0
3 years ago
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