All categories

3 years ago

Suppose that y varies directly with x and y=10 when x=8. What is x when y=30?

Mathematics

1 answer:

fiasKO [112]3 years ago

7 0

Y=kx
10 = 8k
10/8 = k
k = 1.25

30 = 1.25x
30/1.25 = x
24 = x
X = 24

You might be interested in

What expressions are equal if both a and b are negative numbers ?

lbvjy [14]

Should be 2 as this makes the numbers positive and the action of subtraction doesn't change

6 0

3 years ago

What would the method be???

alina1380 [7]

Answer:

The AA method

Step-by-step explanation:

The AA method states that if 2 of a triangle's angles are congruent to that of another triangle's 2 angles, then those triangles are similar.

5 0

3 years ago

Read 2 more answers

Find an equation of the line that passes through the given points. (Let x be the independent variable and y be the dependent var

lara [203]

Answer:

y=5x-6

Step-by-step explanation:

Hello

let´s see , we have P1(3,9) and P2(4.14)

first let's find its slope

$m=\frac{y2-y1}{x2-x1} = \frac{14-9}{4-3}$

$m=\frac{5}{1} \\m=5$

the slope is 5.

$y-y_{0} = m(x-x_{0} )\\\\using P1\\\\ y-9 = 5(x-3)\\\\y=5x-15+9\\\\y=5x-6$

where x is the independent variable and y is the dependent variable

Have a great day.

8 0

3 years ago

Simplify 3 to the power of 2 times 3 to the power of 5

viva [34]

Answer:

3 to the power of 2 times 3 to the power of 5 is 2,187

Step-by-step explanation:

$3^{2}$ x $3^{5}$ = 2,187

Hope this helps! Have a nice day!

(Pls consider making me brainliest no one does it anymore XD)

8 0

3 years ago

A factory uses 1/5 of a barrel of raisins in each batch of granola bars. Yesterday, the factory used 2/5 of a barrel of raisins.

erastovalidia [21]

Answer:

The factory made2 batches of granola bars.

Explanation:

1/5 plus 1/5 is 2/5 and it takes the factory 1/5 of a barrel to make 1 batch of granola bars.

7 0

3 years ago