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Alex787 [66]
3 years ago
10

A table and 8 chairs together weigh

Mathematics
1 answer:
Effectus [21]3 years ago
7 0
Each chair weighs 9 lb.
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Kathleen studied 2/3 of the night's in the month. If the month has 30 days, how many nights did she study?
Brums [2.3K]
Two thirds of thirty is twenty.
thirty days in a month so split into three is 10 per third
7 0
3 years ago
Read 2 more answers
A movable section of stage has the shape of an isosceles right triangle. You need to apply 2 coats of paint to all but the botto
Artemon [7]

Answer:

You need to buy 13 quarts of paint

Step-by-step explanation:

<u><em>The correct question is</em></u>

A movable section of stage has the shape of a right triangle. You need to apply 2 coats of paint (Assume you will not paint the bottom of the ramp). The paint covers approximately 80 square feet per quart. How many quarts of paint do you need to buy?

<u><em>The picture of the question in the attached figure</em></u>

step 1

we know that

The figure show a triangular prism

The surface area of the triangular prism is given by

SA=2B+PL-(14)(19.5) ----> (the area of the bottom is not included)

where

B is the area of the triangular face

P is the perimeter of the triangular face

L is the length of the prism

we have

B=\frac{1}{2}(14)(6)=42\ ft^2

P=14+6+15.2=35.2\ m

L=19.5\ ft

substitute

SA=2(42)+35.2(19.5)-(14)(19.5)=497.4\ ft^2

step 2

You need to apply 2 coats of paint

so

Multiply the surface area by 2

497.4(2)=994.8\ ft^2

step 3

Divide the total square feet by 80 square feet per quart

so

994.8/80=12.4\ quarts

Round up

You need to buy 13 quarts of paint

6 0
3 years ago
John increased the amount of water he drinks every day from 32 oz. to 58 oz. By what percentage did John increase the amount of
rusak2 [61]

Answer:

81.25%

Step-by-step explanation:

58-32=26

26/32=0.8125

0.8125x100=81.25

Sorry I'm not that good at explaining but here is something that helped me.

3 0
3 years ago
Help I can’t do basic math skjsjdmdmx
Sav [38]

Answer:

2/8 which simplifies to 0.111111

Step-by-step explanation:

7 0
3 years ago
Bob payed $5.60 for 0.8 lb of fresh peaches.<br> How much would 3.25 lb of peaches cost?
AleksAgata [21]

Answer:

$22.75

Step-by-step explanation:

first you want to put money over pounds giving you 5.6/0.8 now u divide to get the rate (7).

Now since you know that you got the rate you want to times 3.25 by 7 (22.75)

7 0
3 years ago
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