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koban [17]
3 years ago
14

To solve the equation 2−5(3+4)=2+7,

Mathematics
1 answer:
Rudik [331]3 years ago
3 0

Answer:

she used distributive property

Step-by-step explanation:

What she did 5x3 then 5x4

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What is the slope of the line that passes through the points (1,1) and(-1,-5)
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Calculate the future value of $7,000 earning 6% interest compounded quarterly for 7 years. (Round your answer to two decimal pla
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Use the compound interest formula.

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Marie has 5 apples, Toby takes 2 away. How many does he have less?
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8 0
3 years ago
Read 2 more answers
Who’s right? And why?
kvasek [131]

Answer: Raymond is correct

The DJ charges $75 an hour.

=================================================

Explanation:

x = number of hours

y = total cost

The DJ does a 3-hour event for $275. This means one point is (x,y) = (3,275)

Another point is (5,425) because a 5-hour event costs $425.

Let's find the slope of the line through these two points.

(x_1,y_1) = (3,275) \text{ and } (x_2,y_2)  = (5,425)\\\\m = \frac{y_{2} - y_{1}}{x_{2} - x_{1}}\\\\m = \frac{425 - 275}{5 - 3}\\\\m = \frac{150}{2}\\\\m = 75\\\\

The slope is 75, meaning that each time y goes up by 75, x goes up by 1.

Flipped around it means each time x goes up by 1, y goes up by 75.

This means each time we add on an extra hour, the cost goes up by $75.

The DJ charges $75 an hour. Raymond is correct.

3 0
2 years ago
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