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Andreas93 [3]
3 years ago
11

Three people went to dinner and spent $45 with a coupon for 10% off. How munch would it have cost without the coupon?

Mathematics
1 answer:
tatyana61 [14]3 years ago
7 0

Answer:

$16.66

Step-by-step explanation:

1. x+9=45

2. 450/9= 50

3. 50/3= 16.66

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Solve the following equation. –4y + 8 = 4(2y – 2) – 2(–16 + 8y) A. y = –4 B. y = 4 C. y = –2 D. y = –6 I need Help I am utterly
leonid [27]
The answer is B. (y = 4)


Further explanation:

–4y + 8 = 4(2y – 2) – 2(–16 + 8y)
= -4y + 8 = 4 * (2y -2) - 2 * (-16 + 8y)
= -4y + 8 = ( 4 * 2y - 4 *2 ) - (2 * -16 - 2 * 8y )
= -4y + 8 = 8y - 8 - ( -32 - 16y)
= -4y + 8 = 8y - 8 + 32 + 16y
Move y’s to the left & numbers to the right
= -4y - 8y - 16y = -8 + 32 - 8
= 12y - 16y = -16 + 32
Y = 16 / 28
Y = 4 = (B choice)
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aleksandrvk [35]
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3 years ago
Find the value of r 4(x-3)-r+2x=5(3x-7)-9x
vlabodo [156]

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A farmer wants to estimate the average growth in height of his corn plants over a two week period
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8 0
4 years ago
The population of a country grows exponentially at a rate of 1% per year. If the population was 35.7 million in the year 2010, t
Lady_Fox [76]

Answer:

37.52 million

Step-by-step explanation:

using,

A = A'(1+R/100)ⁿ............................. equation 1

Where A = population size in 2015, A' = Initial population, R = rate in percentage, n = number of times between 2010 and 2015.

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A = 37.52 million.

Hence the size of the population of the country in the year 2015 is 37.52 million

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