Mathematics: Latisha earned $5 an hour painting for her dad.if she made $40 last week, write an equation and solve to determine how many hours h she painted?

Latisha earned $5 an hour painting for her dad.if

mycampbell

12.03.2022

Amount earned by Latisha per hour = $\$ 5$

Amount earned by Latisha in last week = $\$ 40$

Let 'h' be the number of hours she painted,

Since she earned $\$ 40$ in a week. So the equation to find the number of hours she painted in the last week is given by,

$5 \times h = 40$

$h=\frac{40}{5} = 8$

So, she painted for 8 hours in the last week.

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zach32131

12.09.2020

4. About 2,700 in2

Step-by-step explanation:

The area of a circle (), measured in square inches, is directly proportional to the square of its diameter (), measured in inches. That is:

$A \propto d^{2}$

$A = k\cdot d^{2}$

Where is the constant of proportionality, dimensionless.

In consequence, the following relationship between circles A and B is obtained:

$\frac{A_{B}}{A_{A}} = \frac{d_{B}^{2}}{d_{A}^{2}}$

The area of the circle B is now cleared:

$A_{B} =\left(\frac{d_{B}}{d_{A}} \right)^{2}\cdot A_{A}$

Given that $d_{A} = 20\,in$ , $d_{B} = 60\,in$ and $A_{A} = 300\,in^{2}$ , then:

$A_{B} = \left(\frac{60\,in}{20\,in} \right)^{2}\cdot (300\,in^{2})$

$A_{B} = 2700\,in^{2}$

Therefore, the correct answer is 4.

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