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AnnZ [28]
3 years ago
15

If y = kx, and x = 3 and y = 15, calculate k.

Mathematics
2 answers:
kenny6666 [7]3 years ago
6 0

Answer:

k = 5

Step-by-step explanation:

Since the equation is y = kx and x equals 3 while y equals 15, in order to solve this equation we are going to have to substitute the variables with their answers:

x = 3

y = 15

15 = 3k

Now we divide 3 from both 3x and 15 to segregate the variable x:

15/3 = 3k/3

5 = k

Now to check our work we are going to substitute 5 for the variable k, 3 for the variable x and 15 for the variable y.

y = kx

15= (5)(3)

15 = 15

Tada, I hope this helps you!

Kitty [74]3 years ago
6 0

Answer:

k=5

Step-by-step explanation:

y=kx     Also meaning   y = k times x

x=3      y=15      

y divided by x   = 15 divided by 3 = 5

k=5

Lets Check Our Work

y=kx

15=?3

? times 3 is 15  = 5

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Can someone give me two examples where Canadians still use the imperial system as a form of measurement?????
Nataly [62]

Remark

Acres is one example. 640 acres = a square mile. A mile is also a carryover from the imperial system. When Canada transferred over to the metric system, they found that the old system had to stay in place, otherwise all the surveying would have to be redone. There are two examples in this paragraph, but here's another as a bonus.

The Car dealerships in Canada still use the Imperial Gallon to describe how many miles per gallon you might get with the particular car you are looking at. When we bought our Honda Fit, the dealership told us we would get 50 miles / gallon,  and they were not lying. It get's a little less now but we are doing more city driving. And who knows what additives are put in the gasoline. The reason the dealerships do this is because the Imperial Gallon is larger than a US gallon. So for every gallon burned you get more miles with an imperial gallon than you do with a US gallon. That's why you learn to convert. Can't let people trick you.

Answers

Acres and miles when speaking of land

Imperial Gallons when speaking of millage.

6 0
3 years ago
How can you tell that x2 - 19x + 90 is not a perfect square trinomial?
Nimfa-mama [501]
Because 19 is a prime number
6 0
3 years ago
Is 0.0530 greater than 0.04?
SashulF [63]

Answer:

yes

Step-by-step explanation:

0.04 is equal to 0.0400

0.0530

0.0400

5 is higher than 4

5 0
3 years ago
Read 2 more answers
24 times 10 times 90 equals 90 times 2,400
klasskru [66]

WRONG!

24 x 10 x 90

(24 x 10) x 90

  240     x 90

That is NOT the same as 2400 x 90

4 0
4 years ago
What graph represents the function f(x) = 8 1/3^x?
densk [106]

Answer:

B (second graph from left)

Step-by-step explanation:

The function when x=0 will be 1 since any number to the zero exponent is 1. This means only B and D are options.

Because of the fraction, the values will be smaller and have a gentler slope. B is the solution.

3 0
3 years ago
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