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Gelneren [198K]
4 years ago
11

Select ALL the correct answers.

Mathematics
2 answers:
Nonamiya [84]4 years ago
8 0

Answer:

E. R(x)=8x and F. C(x)=3.5x+60

Step-by-step explanation:

R(x) - C(x)

8x - (3.5x+60)

8x -3.5x -60

4.5x - 60


DiKsa [7]4 years ago
3 0

A and D are the correct answers

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X+2+y when x=1 And y=3
svet-max [94.6K]

Answer:

6

Step-by-step explanation:

1+2+3=6

5 0
4 years ago
Evaluate the expression when x=-6.<br> x² + 5x-5
Rus_ich [418]

Answer:

1

Step-by-step explanation:

x² + 5x-5

Let x = -6

(-6)^2 + 5(-6) -5

36 -30 -5

6-5

1

6 0
4 years ago
Ian’s monthly allowance is $21. In January he starts saving for a birthday gift in June. Each month he saves 2/3 of his allowanc
Art [367]

He starts saving $ in January to buy a gift in June. (which is 6 months, or 5 months not including June)

Each month he saves 2/3 of his allowance, which is $14.

[his allowance each month is $21, 2/3 of his allowance is $14]

(you multiply 21 by 2/3 = 42/3 = 14)

The gift he wants to buy is $110


x = the number of months

y = total cost


14x = y  

14x = 110    [he saves $14 each month, he wants to have a total of $110 to buy a gift]


Plug in 6 for x in the equation

14(6) = 110

84 = 110   (He is $26 short, so saving either for 5 or 6 months will not get Ian $110)


Ian will not have enough money because he is $26 short for 6 months or $40 short for 5 months. (you can decide whether you want to go by 5 months or 6(including June), sorry for the confusing answer)

4 0
4 years ago
Here is a map of a town.
ad-work [718]

Answer:

28km

Step-by-step explanation:

4 0
3 years ago
Find the value of x. No calculator needed. Leave the square root as a part of your answer.
aleksklad [387]

Answer:

5/V2=2.5×V2

Step-by-step explanation:

This is an isoscelle right triangle:

x²+x²=5²

2x²=5²

x=5/V2=5×V2/2=2.5×V2

where V2=sqrt(2)

4 0
3 years ago
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