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3 years ago

What adds to make -7 and times to make +10

Mathematics

2 answers:

pav-90 [236]3 years ago

8 0

17
it's 17+(-7)=10
i hope that answers your problem

AlekseyPX3 years ago

7 0

-5 + (- 2) = -7
-5 * (-2) = 10

Answer:
-5 and -2

Hope this helps!

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A teacher conducted an experiment to see if she was more likely to call on boys or girls in class. one day she recorded the numb

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3 years ago

The adult daily dosage for a certain medicine is 60 milligrams for every 20 pounds of body weight. A patient weighs 170 pounds,

Ad libitum [116K]

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3 years ago

Read 2 more answers

Solve the equation x/3 -5 =y for x.

bagirrra123 [75]

A. X=3y + 15
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3 years ago

After a power failure, the temperature in a freezer Increased at an average rate of 3.5 °F per hour. The total Increase was 24.5

inna [77]

Answer:

3.5x=24.5

3.5x7=24.5

X=7

Step-by-step explanation:

3.5 times what equals 24.5

3.5x1=3.5

3.5x2=7

3.5x3=10.5

Keep doing this and increase the number you are multiplying 3.5 by until your answer is 24.5.

8 0

3 years ago

The profit function p(x) of a tour operator is modeled by p(x) = −2x^2 + 700x − 10000, where x is the average number of tours he

pav-90 [236]

Answer:

Range of the average number of tours is between 150 and 200 including 150 and 200.

Step-by-step explanation:

Given:

The profit function is modeled as:

$p(x)=-2x^2+700x-10000$

The profit is at least $50,000.

So, as per question:

$p(x)\geq50000\\-2x^2 + 700x-10000\geq 50000\\-2x^2+700x-10000-50000\geq 0\\-2x^2+700x-60000\geq 0\\\\\textrm{Dividing by 2 on both sides, we get}\\\\-x^2+350x-30000\geq 0$

Now, rewriting the above inequality in terms of its factors, we get:

$-1(x-150)(x-200)\geq 0\\(x-150)(x-200)\leq 0$

Now,

$x0\\x>200,(x-150)(x-200)>0\\For\ 150\leq x\leq200,(x-150)(x-200)\leq 0\\\therefore x=[150,200]$

Therefore, the range of the average number of tours he must arrange per day to earn a monthly profit of at least $50,000 is between 150 and 200 including 150 and 200.

7 0

3 years ago