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kramer
3 years ago
14

Using the equation y=kx and the table below, find the constant of proportionality (k).

Mathematics
2 answers:
iogann1982 [59]3 years ago
8 0

Answer:

k = 9/4

Step-by-step explanation:

Here , we have given equation and we need to find k.

To find k, we have given equation which is y = kx

pick any point from the table and substitute in the equation.

y = kx

We choose :- x = 8 and y = 18

18 = 8 × k

Divide each side by 8

18/8 = k

9 / 4 = k

elena-s [515]3 years ago
4 0

Answer:

k = 9/4

Step-by-step explanation:

To find k, use the equation

y = kx

Pick a point

72 = k *32

Divide each side by 32

72/32 = k

9/4 = k

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Mr.fields orderd 3 tons of gravel for a driveway at a factory. how many pounds of gravel did he order?
astra-53 [7]
2,000 lb = 1 ton

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hope this helped
8 0
3 years ago
Evaluate the expression 3.14(a2 + ab) when a = 4 and b = 3. (Input decimals only, such as 12.71, as the answer.)
Natasha2012 [34]

Answer:

87.92

Step-by-step explanation:

3.14(a² + ab)  where  a = 4  and  b = 3

Plug the given numbers into the appropriate values.  Remember to follow PEMDAS.

3.14((4)² + (4)(3))

3.14(16 + 12)

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5 0
3 years ago
Joseph's lunch at a restaurant costs 13.00, without tax. He leaves the waiter a tip of 17% of the cost of the lunch, without tax
Musya8 [376]

Answer:

The cost before tax with tip is $15.21.

Step-by-step explanation:

To calculate percentage, take the percent (17%) and take its decimal form. This means 17% is 0.17 (like 50% would be 0.5). multiply the number you want the percentage of by the decimal form. 13*0.17=2.21. Add this to the cost before tax and before tip. 13.00+2.21=15.21. The cost before tax with tip is $15.21.

3 0
2 years ago
Using the net below, find the surface area<br> of the pyramid.<br> 4 cm<br> 2 cm<br> 2cm
IrinaVladis [17]
20 cm^2. Type in 20.
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5 0
2 years ago
Read 2 more answers
Please help I’ll appreciate it thank you
maxonik [38]
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3 years ago
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