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Ray Of Light [21]
3 years ago
15

If f(x) = -3x + 6 and f(x)=18 then what is the value of x?

Mathematics
1 answer:
natta225 [31]3 years ago
4 0

Answer:

-4=x

Step-by-step explanation:

f(x) = -3x + 6

Let f(x) = 18

18 = -3x+6

Subtract 6 from each side

18-6 = -3x+6-6

12 = -3x

Divide each side by -3

12/-3 = -3x/-3

-4=x

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3 years ago
Find the area and perimeter
spin [16.1K]

Answer:

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perimeter (P) =(2x+42) units

Step-by-step explanation:

area(A) =length(l) × breadth(b)

perimeter(P) =2(l+ b) {which is sum of all sides}

so, l = 7+x+5 = (x+12) units and b = 9 units

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3 years ago
Sue's Sushi placed two orders with its fish supplier. One order was for 11 pounds of salmon and 6 pounds of tuna; the order tota
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Hi there

One pound of salmon will cost $13, and one pound of tuna will cost $8.

Here's why.

X will be the cost of pound of salmon, and y will be the cost of a pound of tuna.
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So, again...
1lb Salmon : $13
1lb Tuna : $8
3 0
3 years ago
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