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Schach [20]
3 years ago
10

Plz help me answer this

Mathematics
2 answers:
Verizon [17]3 years ago
8 0
If 60% of the painters is 12, then 10% of the painters is 2, and therefore there are 20 painters.
Murrr4er [49]3 years ago
4 0
12 painters ----- 60% of the painting crew
x painters ------- 100% of the painting crew
____________________________________
12*100%=x*60%
12*1=x*0,6
12=0,6x
x=20

20 painters worked on this job :)
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Evaluate the function f(x) = 2x3 - 6x + 1 for f(-2).
erma4kov [3.2K]

Answer:

- 3

Step-by-step explanation:

f(x) = 2 {x}^{3}  - 6x + 1 \\ plugging \: x =  - 2 \\ f( - 2) = 2( { - 2})^{3}  - 6( - 2)+ 1  \\  = 2 \times ( - 8) + 12 + 1 \\  =  - 16 + 13 \\  =  - 3 \\ f( - 2) =  - 3

7 0
3 years ago
If the numbers below were ordered from least to greatest, which number could you use to replace the blank? 0.20,2/5 □ , 3/4,8/10
faust18 [17]
1/2 would work for the blank space

because as shown in the image you could relate it to a whole for each one and put it to 100 to figure out what the blank could be

the 0.20 can be converted to 1/5 so that way you can put everything into the 100 group

8 0
3 years ago
What is the area of a section of pavement that is 20 ft wide and 70 yd long?
myrzilka [38]

Answer:

A = 4200 ft^2

Step-by-step explanation:

We know the formula for area is

A = l*w

We need to have the same units

convert yd to ft

1 yd = 3ft

Multiply each by 70

70 yds = 210 ft

A = 210 *20

A = 4200 ft^2



6 0
3 years ago
Which is the denominator and which is the numerator?
Mashcka [7]
Hey there!

<span>The numerator is the top part of the fraction and the denominator is the bottom part of the fraction. </span>

For example, in the fraction \frac{1}{2} , 1 would be the numerator and 2 would be the denominator. 

Thank you! 

7 0
3 years ago
4(b+2)=40 what is the value of b?
Katarina [22]

Answer:

Step-by-step explanation:

4b+8=40

4b=32

b=8

7 0
2 years ago
Read 2 more answers
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