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3 years ago

4m/5-2m/3=1 solve the equation

Mathematics

1 answer:

katen-ka-za [31]3 years ago

8 0

Answer:

m = 7.5

Step-by-step explanation:

4m/5 - 2m/3 =1

We want to get rid of the fractions so multiply each side by 5*3 or 15

15 *(4m/5 - 2m/3 ) =1*15

15 *(4m/5) -15( 2m/3 ) =1*15

Canceling like factors

3* 4m -5*2m = 15

Multiply

12m - 10m = 15

2m = 15

Divide each side by 2

2m/2 = 15/2

m = 7.5

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Solve if x is 3.<br> 91+x raise to power2

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X=3
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3 years ago

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3 years ago

Keri is simplifying 5·10^−3.

11111nata11111 [884]

Answer:

1. D

2. A

Step-by-step explanation:

Q1. Kerry is simplifying $5\cdot 10^{-3}$

By the definition of negative powers,

$a^{-n}=\dfrac{1}{a^n}$

Hence,

$10^{-3}=\dfrac{1}{10^3}$

So, the first step in simplifying the expression is

$5\cdot 10^{-3}=5\cdot \dfrac{1}{10^3}$

Q2. Given the expression

$\dfrac{8}{10^{-2}}$

First, use the definition of negative powers:

$10^{-2}=\dfrac{1}{10^2}$

Thus,

$\dfrac{8}{10^-2}=\dfrac{8}{\frac{1}{10^2}}=8\cdot 10^2=8\cdot 100=800$

8 0

2 years ago

Explain why is 1/5 bigger than 0.15

Nitella [24]

1/5 is greater because it equals 0.2

0.2 has an imaginary 0 at the end, to make it 0.20

.20 > 0.15

Therefore, 1/5 is greater than 0.15

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3 years ago

Can some break this down step by step please I'm confused?

frutty [35]

take 16+5=21. 29-21=8 so answer is 8

5 0

3 years ago