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alexandr402 [8]
2 years ago
5

Three students were given the expression shown to simplify 1-8(10x-3)​

Mathematics
2 answers:
madreJ [45]2 years ago
6 0

Answer:

-70x + 21

Step-by-step explanation:

1-8(10x-3)

-7(10x-3)

Use distributive property

-70x + 21

(This is how we learned to do it in my school)

xxMikexx [17]2 years ago
5 0

Answer:

80x-25

Step-by-step explanation:

first you distribute the 8 in to the parentheses:

8(10x-3) 8×10x=80x 8×3=24 1-80x-24

then you add the like terms:

24+1=25 80x-25

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Two car washers, Michelle and Nancy, are working on your car. Michelle can complete the work in 6 hours, while Nancy can complet
g100num [7]
Time taken by Michelle to complete the work alone = 6 hours
Time taken by Nancy to complete the work alone = 3 hours
Now, when they both are working on the same job for 1 hour, 
Amount of job completed = (1/6) + (1/3) 
                                         = (1 + 2)/6 
                                         = 3/6 
                                         = 1/2 
So in 1 hours time they both will complete half of the job. Then in 2 hours Michelle and Nancy will complete the total job. I hope the answer has come to your help.
3 0
3 years ago
Read 2 more answers
How much tax will i pay on a $54.99 video game? (6% tax rate)
Mnenie [13.5K]

Answer:

3.299 or 3.3

Step-by-step explanation:

54.99(.06)=3.2994

4 0
2 years ago
How many boards,each 2 ft and 8 inches long, can be cut from a board 16 inches long?
Keith_Richards [23]

Answer: 2

Step-by-step explanation: 16/8=2

5 0
3 years ago
Hey there!<br><br> Can you help me please ? Thanks!
Vinil7 [7]
A. (140x110)+[(50x70)/2] = 15,400+1750= 17,150cm^2

b. (4x6)/2= 12cm^2
5 0
3 years ago
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65. A pizza, heated to a temperature of 400°F, is taken out of an oven and placed in a 75°F room at timet= 0 minutes. The temper
Amanda [17]

Answer:

769MIN

Step-by-step explanation:

Hello!

To solve this problem we must use the straight line equation, this equation is as follows

Y=mx+b

where

X= time

Y=Temperature

b= intercept with the y axis when x = 0, therefore y = 400

m=k= temperature decrease with respect to time=-0.325

now we replace the values ​​in the equation of the line

Y=-0.325X+400

Now we find the time it takes for the pizza to reach 150 F replacing in the equation and finding X

150=-0.325X+400

150-400=-0.325X+

X=\frac{150-400}{-0.325} =769MIN

4 0
3 years ago
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