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3 years ago

Kevin has $25. MP3 downloads cost $0.75 each. How many songs can he download and still have $13 left to spend?

Mathematics

2 answers:

matrenka [14]3 years ago

8 0

It would be .75x=25-13
So .75x=12
x=16 because .75×16=12

solong [7]3 years ago

4 0

He can download 16 songs because 25-13=12
12 divided by .75 is 16

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4 years ago

Percy delivers pizzas for pizza king. He is paid $6 an hour plus $2.50 for each pizza he delivers. Percy earned $280 last week.

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Hey You!

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3 years ago

B(4, 0) and c(10, 4) are the endpoints of a line segment. what is the midpoint m of that line segment? answer

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Answer: (7,2)
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4 years ago

What is the nth term for 12, 13, 14, 15?

bezimeni [28]

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The 5th term is 16

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3 years ago

Suppose that the sitting back-to-knee length for a group of adults has a normal distribution with a mean of mu equals 22.1 in.

nadya68 [22]

Answer:

Step-by-step explanation:

Given that the sitting back-to-knee length for a group of adults has a normal distribution with a mean of mu equals 22.1 in. and a standard deviation of sigma equals 1.2 in.

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$P(X\geq a) \leq 0.01\\$ and

$P(X\leq b) \leq 0.01$

a=2.33 and b =-2.33 as z values

Let us convert to X values

$x=22.1-2.33(1.2) \\x=22.1+2.33(1.2)\\$

i.e. values below 19.304 and above 25.496

Hence for x below 19.304 and above 25.496 are significantly low and high.

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3 years ago