19 hours
Calculate his hourly rate by dividing $91 by 13
hourly rate = 
= $7
Now divide $133 by 7 to find number of hours he has to work
= 19 hours
You basically have to divide 10/3 which will give you a decimal 3.3 so that would be your unit rate PER each box. Just multiply 3.3 by the number of boxes.
Step-by-step explanation:
Pam and Erin want the gardens to be proportional.
<em>proprtional</em><em>-</em><em> </em><em>equal</em><em> </em>
Pams garden has a length of 16 and width of 12. To find the area of Pam's garden multiply the length by the width.
<em>16</em><em>×</em><em>12</em><em>=</em><em> </em><em>192</em><em> </em>
Now that we know the area of Pam's garden, we can set up and equation for Erin's garden. Since they have to be equal we know that Erin's garden should equal 192. Thus we solve for the length by dividing the width from the total.
<em>192</em><em>÷</em><em>21</em><em>=</em><em>9.14</em>
<span>This is a tricky question that Reina and Sam are multiplying (84)5 (73)9
and their work are
</span><span>(84)5 (73)9 = 84 + 573 + 9 = 89712 Reina's
(84)5 (73)9 = 84⋅573⋅9 = 820727 Sam's
Actually they are doing or multiplying using exponents.
</span>
Reina’s work
(8⁴)₅(7³)⁹=8⁴⁺⁵+ 7³⁺⁹= 8⁹ 7¹²<span>
This is incorrect because she added exponents
instead of multiplying exponents
Sams work (8</span>⁴<span>)</span>⁵<span> (7</span>³<span>)</span>⁹<span>=8</span>⁴ˣ⁵<span> 7</span>³ˣ⁹<span>= 8</span>²⁰<span> 7</span>²⁷<span>
<span>This is correct because Sam multiplied exponents correctly</span></span>
<span><span>Exponents are multiplied not added.</span></span>
