3 years ago

A Community hall is in the shape of a cuboid. Work out the paint cost, tiles cost and total cost.

Mathematics

1 answer:

Lesechka [4]3 years ago

3 0

Answer:

2172 is the total cost

Cost for tiles: 1800

cost of paint: 372

Find the surface area of the wall without floor:(for cost of paint)

40 x 15 + 40x3x2 + 15x3x2 = 600 + 240 + 90 = 930

Cost: 930/25 x 10 = 372

Find area of floor:(to find cost of tiles)

40 x 15 = 600m^2

cost: 600 x 3 = 1800pounds

add them if needed

Hope this helps

Good Luck

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Tickets to a school play cost $2 if bought in advance and $3 at the door. By selling all 400 tickets, $1030 was collected. First

Marrrta [24]

Answer:

170 tickets.

Step-by-step explanation:

Write formulas for the question.

$N_2+N_3=400$

$2N_2+3N_3=1030$

Then use substitution.

$N_2=-N_3+400$

$2(-N_3+400)+3N_3=1030$

$-2N_3+800+3N_3=1030$

$N_3=230$

So number of $3 tickets sold is 230. But they ask for the tickets bought in advance (i.e. the tickets sold for $2). Use substitution again.

$N_2+230=400\\N_2=400-230\\N_2=170$

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3 years ago

20x+13=53 solve for x, right?? Help??

borishaifa [10]

20x=53-13
20x=40
20x/20=40/20
x=2

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Robin puts 58 cups of water into her recipe. Noel puts 13 the amount of water that Robin puts in her recipe.

Arte-miy333 [17]

So Noel puts 754 cups of water into his/her recipe

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Solve the system of equations. If the system does not have one unique solution, determine the number of solutions to the system.

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A taxi company charges passengers $2.00 for a ride, no matter how long the ride is, and an additional $0.20 for each mile travel

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c =0.20m + 2.00

Where c is the cost and m = number of miles,

For a 2.7 mile ride, m = 2.7

c = 0.20m + 2.00, m = 2.7

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I hope this helps.

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