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Elanso [62]
3 years ago
7

I don't understand what this is saying

Mathematics
1 answer:
GenaCL600 [577]3 years ago
6 0
It is asking you for the equivalent percentage or fraction.  So, where it says 1/2, it wants the percentage, which is 50%.  Where it says .25, it wants the fraction, which is 1/4....
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PLEASE HELP WILL GIVE BRAINLIEST!!!!!1
Murrr4er [49]

Hey there!

<em>C = 0.25x + 40</em>

(a) For this part we solve for C when x = 240. Substitute 240 in for x.

C = 0.25(240) + 40

Multiply 240 by 0.25.

C = 60 + 40

Add.

C = 100

The cost is $100.

<u>Check</u>

100 = 0.25(240) + 40

100 = 60 + 40

100 = 100

(b) For this part we solve for x when C = 180. Substitute 180 for C.

180 = 0.25x + 40

Subtract 40 from each side.

140 = 0.25x

Divide each side by 0.25.

560 = x

This person drove 560 miles.

<u>Check</u>

180 = 0.25(560) + 40

180 = 140 + 40

180 = 180

(c) For this we must make an inequality with C = 150.

Since they want the cost to be <em>no more than</em> 150, we will use the ≥ symbol.

C ≥ 0.25x + 40

Substitute 150 for C. Solve for x.

150 ≥ 0.25x + 40

Subtract 40 from each side.

110 ≥ 0.25x

Divide each side by 0.25.

440 ≥ x

The max number of miles they can drive is 440.

<u>Check</u>

150 ≥ 0.25(440) + 40

150 ≥ 110 + 40

150 ≥ 150

Hope this helps!

4 0
3 years ago
Deepa finds some dimes and quarters under the couch cushions. How much money
sergiy2304 [10]

Answer:

$2.25

Step-by-step explanation:

10*0.10= $1.00

5*0.25= $1.25

1+1.25= $2.25

8 0
2 years ago
7) What is the range of the function f(x) = (x + 3)^2 + 4?
polet [3.4K]

​
Here is your answer and result

Have a nice day

4 0
2 years ago
What is the width of a box when the length is x+2, the height is x+8, and the volume is x^3+9x^2+6x-16?
Nostrana [21]

(x+2)(x+8) = x^2 +10x +16

(x^2 + 10x + 16)(x-1) = x^3+9x^2+6x-16, so the other dimension is x-1

8 0
3 years ago
Read 2 more answers
1/3(15y-6)<br><br> I need help plz!!!
Rufina [12.5K]

Answer:

(4.99y-1.99); rounded it would be (5y-2)

Step-by-step explanation:

Distribute 1/3 into the parentheses, since you can't subtract 15y-6 because they don't have the same variable.

5 0
3 years ago
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