Please help me??????????!!!!!!!!!

Mathematics

1 answer:

zhenek [66]3 years ago

3 0

Multiply by a across the formula

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I AM GIVING BRAINLIEST

spayn [35]

Answer:

The first choice is correct

Step-by-step explanation:

$32.00 x 15% = 4.80. 32.00-4.80=27.20. Another way to work it is the first choice, subtracting 15% from 100% and then multiplying 85% by $32.00. Same answer

7 0

3 years ago

Show work and explain. Which is better: 15 ounces for $1.79 or 12 ounces for $1.49?

Leokris [45]

Find the prices per ounce by dividing the dollars by the number of ounces:-

1.79 / 15 = 0.1193 dollars per ounce

1.49 / 12 = 0.1242 dollars per ounce

So the first one is the better buy.

5 0

4 years ago

Solve for 'p'

Darina [25.2K]

$\left(\dfrac{9a^{-4}}{25}\right)^p=\dfrac3{5a^2}$
$\left(\dfrac9{25a^4}\right)^p=\dfrac3{5a^2}$

One way to find $p$ is to notice that the part on the left hand side within the parentheses can be written as a square:

$\dfrac9{25a^4}=\dfrac{3^2}{5^2(a^2)^2}=\left(\dfrac3{5a^2}\right)^2$

So you could write

$\left(\left(\dfrac3{5a^2}\right)^2\right)^p=\left(\dfrac3{5a^2}\right)^{2p}=\dfrac3{5a^2}$

Since these two expressions are equal, and the bases are the same, you know the exponents must be equal, with the exponent on the right hand side being 1. So $2p=1$ , or $p=\dfrac12$ .

6 0

3 years ago

Write the equation of the line that passes

Vinvika [58]

Answer:

The slope is -4.

Step-by-step explanation:

Slope formula:

$\displaystyle \frac{y_2-y_1}{x_2-x_1}=\frac{rise}{run}$