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zepelin [54]
3 years ago
5

I need help with number 4!! Please! I didn’t learn this and it is due soon! Thank you

Mathematics
1 answer:
earnstyle [38]3 years ago
8 0

Answer:

$20.63 if you tip on the pre-tax amount

Step-by-step explanation:

You pay $12.99 for the pizza, plus the 8% tax on the pizza, plus the 20% tip of the cost of the pizza, so if you tip on the pre-tax amount, you pay

$12.99(0.08) = $1.04 in sales tax

$12.99(0.2)   =  $2.60 for the tip

and $4 delivery charge,

so you pay a total of

$12.99 + $1.04 + $2.60 + $4 = $20.63

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Answer:

Side a = 35ft

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Step-by-step explanation:

The formula for the perimeter of a triangle = Side a + Side b + Side c

In an isosceles triangle, 2 sides are equal to each other.

So, Side a = Side b

In the question, we are told that:

The two equal sides are each 5 ft less than twice the length of the third side.

Hence,

a = 2c - 5

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Collect like terms

90 = 5c - 10

90 + 10 = 5c

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a = 2c - 5

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b =2c - 5

= 2 × 20 - 5

= 40 - 5

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Therefore,

Side a = 35ft

Side b = 35ft

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