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Burka [1]
3 years ago
14

I need help in 2 3 4 5 6 7 8

Mathematics
1 answer:
ahrayia [7]3 years ago
7 0
Yo i can't see wut it says
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PLLLZZ EXPLAIN HOW YOU GOT IT! I will give you branilest!
Nezavi [6.7K]

Answer:

Getting through ratio method

100-20=80 percent have to pay

18:80

<em>x</em>:100

cross multiply

80 x <em>x=1</em>8 x 100

80x=1800

x=1800/80

x=22.5

So the original price was $22.50

Step-by-step explanation:

5 0
2 years ago
Question 11-(3 marks available)
klasskru [66]

Answer: 1080 cm^{2}

Determine the values of b1, b2, and b3, the sides of the triangular base. Also determine the value of h, the height of the triangular base and l, the length of the prism (the length between the bases).

The sides of the triangular base are:

b1 = 13 in.

b2 = 14 in.

b3 = 15 in.

The triangular base is a right triangle, and so the height is one of our sides. We will use

h = 12 in.

The length of the prism is

l = 20 in.

total surface area = bh + (b1+b2+b3)*l

bh = 12*20 = 240 cm^{2}

l * (b1+b2+b3) = 20*(13 + 14+ 15) = 840 cm^{2}

TSA = bh + l * (b1 + b2 + b3) = 240 + 840 = 1080 cm^{2}

to know more about prism,

brainly.com/question/16128664

5 0
1 year ago
I need help on this i need help on this​
elena55 [62]

Answer:

A

Step-by-step explanation:

3 0
3 years ago
The school track is 2/3 of a mile long. how far wuld you run if you took 9 laps around the track?
kakasveta [241]

Step-by-step explanation:

distance \: run \: in \: one \: lap  \\  =  \frac{2}{3}  \: miles \\  \\  \therefore \:distance \: run \: in \:9 \: laps \:  \\   =  \frac{2}{3}  \times 9 \\  = 2 \times 3 \\  = 6 \: miles

Hence, in 9 laps you will run 6 miles.

4 0
3 years ago
7s + m + t = l
Travka [436]

Answer:

s=I-t-m/7

s=a-12/3

s=g-22/5

s=r-q/-3

8 0
2 years ago
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