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Elena L [17]
3 years ago
10

After a 5% discount, a telephone bill is $79.50. How much was the bill originally?

Mathematics
1 answer:
Ksivusya [100]3 years ago
5 0
95%=$79.50
100%= 79.50/95 X 100 = $83.68
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2900 dollars is placed in an account with an annual interest rate of 9% Wirte an equation that calculates how many dollars will
valentinak56 [21]

Answer:

The amount that will be in the account will be $(2900 +261x)

Step-by-step explanation:

We know that the amount of money that will be in the account will be a sum of the initial principal ($2900) and the interest that is accrued after x years.

Since we already know the principal, we will have to calculate the interest that is accrued after x years.

we can use the formula:

Interest = (principal X rate X time)/ 100

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Therefore the amount that will be in the account will be $(2900 +261x)

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Solve 7x - 5 = 2 ????????????????
wolverine [178]
<span>7x - 5 = 2
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What is the value of f(7)
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Please help it’s due tonight. Your help will be greatly appreciated.There is also a graph. WILL PUT YOU AS BRAINLY!!!!!!
chubhunter [2.5K]

Answer: see below

Step-by-step explanation:

The shape is a trapezoid

Base 1 (BH) is 10

Base 2 (QA) is 14

Height is 5

Area

A=\frac{base_{1} +base_{2} }{2} h

A=\frac{10+14}{2} *5\\A=12*5\\A=60

Find distance between QB and HA

D=\sqrt{(x_{2} -x_{1}) ^{2}+(y_{2}-y_{1})  ^{2}

Q( -4,4)  B (-2,9)

D=\sqrt{(-2--4)^{2}+(9-4)^{2}  } \\D=\sqrt{2^{2} +5^{2} } \\D=\sqrt{29}

Perimeter

P=10+14+2\sqrt{29} \\P=24 +2\sqrt{29} \\P= 24+10.77\\P=34.77

5 0
3 years ago
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