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2 years ago

Problem #7 PLEASE HELP ;(

Mathematics

1 answer:

mixer [17]2 years ago

4 0

Answer:

Yes

6(x+0.4) is equivalent to 3(2x+0.8)

Step-by-step explanation:

Given in the questions two expressions

6(x + 0.4)

3(2x + 0.8)

We will apply distributive law

It is a law relating the operations of multiplication and addition, stated symbolically

6(x + 0.4)

= 6(x) + 6(0.4)

= 6x + 2.4

3(2x + 0.8)

= 3(2x) + 3(0.8)

= 6x + 2.4

Since both equations when expanded have same answers, hence they are equivalent

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Answer:

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Step-by-step explanation:

First, add 30 to 10.

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2 years ago

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2 years ago

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2 years ago

Read 2 more answers

Simplify<br> (5ab^2-4ab 7a^2b) (ab )^-1

algol13

$(5ab^2-4ab+7a^2b) (ab )^{-1 }=(5ab^2-4ab+7a^2b) a^{-1}b^{-1}\\\\=\boxed{5b-4+7a}$

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3 years ago

Find the value of m that makes ABC~DEF when AB= 3, BC= 4, DE= 2m, EF= m+5, and ∠B≅∠E.

Yuki888 [10]

Answer:

m = 3

Step-by-step explanation:

It is given that there are two triangles $\triangle$ ABC and

$\triangle$ ABC ~

Also, the sides are:

AB= 3

BC= 4

DE= 2m

EF= m+5 and

∠B≅∠E

Please have a look at the attached figure for $\triangle$ ABC and

The triangles are similar so as per the property of similar triangles, the ratio of corresponding sides will be same.

i.e.

$\dfrac{AB}{DE} = \dfrac{BC}{EF}\\\Rightarrow \dfrac{3}{2m} = \dfrac{4}{m+5}\\\Rightarrow 3 \times (m+5) = 4 \times 2m\\\Rightarrow 3m +15= 8m \\\Rightarrow 5m=15\\\Rightarrow m = 3$

So, <em>value of m = 3.</em>

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2 years ago