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Liono4ka [1.6K]

3 years ago

10

Jane and her sister Laurie are painting a garage. Julie can paint the garage in 7 hours and Lauren can paint the garage in 10 ho

urs. About how long will it take the sisters to paint the garage if they worked together?

1 answer:

stepan [7]3 years ago

5 0

Answer:

17 hours

Step-by-step explanation:

Because 10+7 is 17 so that is your answer

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Sarah took out a $30,000 loan at a 4% interest rate to put a new pool in her backyard. If the interest is compounded quarterly,

andrey2020 [161]

Answer: $48,366.78

Step-by-step explanation:

3000(1+0.04/4) 4t

4 0

2 years ago

At a school fair 70% of the people are under 16 years old. One third of the people remaining are teachers. If there are 21 teach

Tamiku [17]

In the fairest school 70% are below 16 years old 1/3 are teachers which is equals to = 21 Let’s start solving: => 1/3 of 100% => 100 / 3 = 33.33% thus 33.33% = 21 => 21 x 3 = 63, is the total number of people in the school. Let’s try solving the number of people below 16 years old Have you notice that you are asking for a 70% of students but there are already 33.33% of teacher. Thus your given problem is not right already. => 100% - 33.33% = 66.67% that’s the only remaining percentage and not 70% => 63 * .6667 = 42.0021 Thus, there are around 42 people who are 16 years old younger.

3 0

3 years ago

Zamir needs to determine the height of the building

Svetach [21]

Answer:

Height of the building = 115.4 ft.

Step-by-step explanation:

Height of building = AB + 46.4 + CD + 30.5

By applying Pythagoras theorem in ΔABP,

(26)² = (10)²+ (AB)²

676 - 100 = AB²

AB² = 576

AB = 24 ft

By applying sine rule in ΔCDE,

cos(60°) = $\frac{CD}{CE}$

CD = CE × $\frac{1}{2}$

CD = $\frac{29}{2}$

CD = 14.5 ft

Total Height = 24 + 46.4 + 14.5 + 30.5

= 115.4 ft

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3 years ago

Jerome recently moved to a new city and bought a home. The assessment rate is 51%. The property tax rate is $53.26 per $1000. Wh

mrs_skeptik [129]

Given:
assessment rate = 51%
tax rate = 53.26 per 1,000

53.26 / 1000 = 0.05326
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Effective tax rate = assessment rate * tax rate
ETR = 51% * 5.326%
ETR = 2.72%

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3 years ago

Mark and his brother signed up for the Catch Up

morpeh [17]

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Step-by-step explanation:

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3 years ago