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Arte-miy333 [17]
3 years ago
11

Use doubles to find the sum of 7+8.

Mathematics
2 answers:
lyudmila [28]3 years ago
6 0
I believe, 8+8=16, 16-1=15
Tems11 [23]3 years ago
4 0
7+8 =15
so u can use 7+7 +1
since 15 is off number there is no exact double number for that u have to use 1
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Step-by-step explanation:

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A triangle has an angle that measures 55°. The other two angles are in a ratio of 11:14. What are the measures of those two angl
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9514 1404 393

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Step-by-step explanation:

The sum of the two other angles is ...

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8 0
2 years ago
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Solve for : x 4(x+5)=3(x-2)-2(x+2)
Allushta [10]

Hey there!!

In order to solve this equation, we will have to use the distributive property.

What is distributive property?

We will need to distribute one term to the other terms preset.

Example : 4 ( 3x - 1 )

sing distributive property, we will have to distribute the term outside the parenthesis to the terms inside. In this case, we will have to distribute 4 to 3x and -1

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12x + ( -4 )

= 12x - 4

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Now moving back onto the question

4 ( x + 5 ) = 3 ( x - 2 ) - 2 ( x + 2 )

Let us first solve 4 ( x + 5 )

Distribute 4 to x and 5

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Distribute 3 to x and -2

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Distribute -2 to x and 2

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4x + 20 = x - 10

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4x - 4x + 30 = x - 4x

30 = -3x

Dividing by -3 on both sides

30 / -3 = -3x / -3

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<h2>x = - 10 </h2><h3>Hope my answer helps!</h3>

5 0
3 years ago
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Bogdan [553]

Answer:

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8 0
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