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alina1380 [7]
3 years ago
6

Write an expression for twice the sum of 16 and 9

Mathematics
1 answer:
RoseWind [281]3 years ago
6 0

Answer:

(16 + 9) * 2

Step-by-step explanation:

It asks for an expression so there would be no equal sign. Since it says twice, you would multiply the value got from adding 16 and 9 by 2. Put parentheses to confirm order of operations.

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Over the course of 4 days the price of stock at ACME corporation fell $28. What was the average change in stock price per day?
Ludmilka [50]
The average change is 33 stock price per day
6 0
3 years ago
Sixty photos taken at a photo shoot are in black and white. If this represents 15 percent of the total number of photos taken, w
Art [367]

Answer:

D. 15×4/100×4 = 60/400

Step-by-step explanation:

First I figured out how many photos there are in total, which was by doing 60/.15, since only 15% of the total photos are in black and white. We can already cross out all possibilities that don't have the denominator 400, but we can go a step further by seeing which one is 60/400, or equal to 60/400, which is D. 15×4/100×4 = 60/400.

7 0
3 years ago
Joseph is working two summer jobs, making $12 per hour babysitting and making $6 per hour walking dogs. In a given week, he can
marin [14]

Answer:

There is no possible values for the number of whole hours walking dog

Step-by-step explanation:

Let x is the number of hours working as a babysitting (x ≥ 0)

Let y is the number of hours working as a walking dogs person (y ≥0)

We have a system of inequalities:

  • 12x + 6y ≥ 90
  • x + y ≤ 9

If Joseph worked 2 hours babysitting:

2+ y ≤ 9 <=> y ≤ 7 (y > 0) and

12x + 6y ≥ 90 <=> y ≥  11

so there is no possible values for the number of whole hours walking dogs:

Hope it will find you well.

5 0
4 years ago
Y is 1 1/3 times x.
ValentinkaMS [17]

Answer:

B. 4:3

Step-by-step explanation:

Note: I use the '&' mark to symbolize mixed fractions, since it's easy to mistake the whole number for part of the numerator. Don't do this for assignments, as it's not proper.

1 & 1/3 = 4/3

Thus, the answer is B. 4:3.

4 0
3 years ago
Drag equations to each row to show why the equation of a straight line is y = mx + b, where m is the slope and b is the y-interc
Alborosie

Answer:

m is the slope because it is affected by the value of x. They are multiplied together and therefore are affected by one another.

The b is the intercept because even when the x value is 0, the value of the y-intercept exists.


6 0
4 years ago
Read 2 more answers
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