4 years ago

How to solve this equation and check it. a - 2.5 = 4.5?

Mathematics

1 answer:

Bezzdna [24]4 years ago

5 0

Answer:

Step-by-step explanation:

a - 2.5 = 4.5

2.5 = 2.5

a = 7.0 or 7

7.0 - 2.5 = 4.5

4.5 = 4.5

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Nancy bought 570 crayons that came in packs of 15 how many packs of crayons did Nancy buy

Finger [1]

Answer:

The answer to your question is 38 packs

Step-by-step explanation:

Data

570 crayons

packs of 15 crayons each

total number of crayons = ?

Process

To solve this problem just divide the number of crayons by the number of crayons in each pack.

15 570

-45

120

- 120

Conclusion

Nancy bought 38 packs to have 570 crayons.

3 0

3 years ago

Please help with step by step

gregori [183]

$f(x)=10e^{\frac{x-1}{2}}$

substitute f(x) for y
$y=10e^{\frac{x-1}{2}}$

solve for x

$\frac{y}{10}=e^{\frac{x-1}{2}}$

$ln( \frac{y}{10}) = \frac{x-1}{2}$

$2ln( \frac{y}{10})=x-1$

$2ln( \frac{y}{10})+1 =x$

$2ln( \frac{y}{10})$ is esquivent to $2ln(y) - 2ln(10)$

$2ln(y)-2ln(10)+1=x$

Change x to y and y to x

$2ln(x)-2ln(10)+1=y$

Flip formula and substitute y for g(x)

$g(x)=2ln(x)-2ln(10)+1$

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3 years ago

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