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denpristay [2]
3 years ago
8

Use the distributive property to simplify the expression 7(x-20)

Mathematics
2 answers:
grigory [225]3 years ago
6 0

Multiply "7" by each term inside the parentheses.

7(x-20) = 7x-140

answer: 7x-140

defon3 years ago
4 0

Answer: 7x-140

Step-by-step explanation:

7 times x is 7x. 7 times -20 is -140

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The graph depicts the growth and costs using of line segment use the midpoint formula to approximate the cost during the year 19
marysya [2.9K]

Answer:

The approximate cost during the year 1987 was $7,533

Step-by-step explanation:

The complete question in the attached figure

we have

y -----> is the cost in dollars

x -----> is the year

Looking at the graph we have the points

(1983,5,047) and (1991, 10,019)

To determine the cost in the year 1987, find out the midpoint between the two given points

The formula to calculate the midpoint between two points is equal to

M=(\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

substitute the values

M=(\frac{1983+1991}{2},\frac{5,047+10,019}{2})

M=(1987,7,533)

therefore

The approximate cost during the year 1987 was $7,533

7 0
3 years ago
Please simplify the expression.
IRINA_888 [86]

Answer:

1) 15a - 15c + 3

2) -7n + 31 + 13m + 7p  or  13m - 7n + 7p + 31

3) 44x + 6y + 3

4) 9m - 6n + 23

Step-by-step explanation:

1. Add like terms. 6a + 9a=15a. -8c - 7c=-15c

2. Add like terms. You can rearrange them in descending order based off of exponents and variables.

3. Multiply what's in parentheses first (distribute the 6). It should end up being (6y + 42x). Then you add like terms and put in descending order.

4. Distribute the (-3) to what in the parentheses. It should end up being (-6n + 15 - 3m). Then you add like terms and put the expression in descending order.

8 0
3 years ago
erik drove 439.92 miles on 15.6 gallons of gas. To the nearest hundredth, how many miles could he drive on 39.7 gallons of gas?
Thepotemich [5.8K]
In the question it is already given that Eric drove for 439.92 miles on 15.6 gallons. It is required to find the distance traveled on 39.7 gallons of gas. Also we have to find the answer to the nearest hundredth.
Then,
In 15.6 gallons Eric can drive for a distance = 439.92 miles
In 39.7 gallons Eric can drive for a distance = [(439.92/15.6) * 39.7] miles
                                                                       = 1119.54 miles
So the total distance traveled by Eric is 1120 miles with 39.7 gallons of gas. The answer has been calculated to the nearest hundredth.
6 0
3 years ago
URGENT!!!! PLEASE HELP SHOW WORK!!!!!!!!!!!!!!!!!!!!! PLEASE!!!!!!! I HAVE BEEN WAITING SO LONG!!!!!!!!!
garik1379 [7]
You would do 69sq×3.1416. that gives you 14,957.1576 round it to the nearest hundreth, 14,957.16

7 0
3 years ago
Abel is making brownies for a bake sale.
IgorLugansk [536]

Answer:

You did not post an image.

Step-by-step explanation:

8 0
2 years ago
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