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3 years ago

In 56 years, Kevin will be 9 times as he is right now. How old is he right now?

Mathematics

1 answer:

hammer [34]3 years ago

3 0

that would mean he's 7 right now

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Find the slope of the line that passes through the pair of points. (-6,-1), (0,-9)

klio [65]

Answer: -4/3

Step-by-step explanation:

$\frac{-9-(-1)}{0-(-6)} \\\frac{-8}{6} = -8/6\\-8/6=-4/3$

5 0

3 years ago

Read 2 more answers

And has a volume of 144 cm. The base is a square with a link of 4 cm. What is the height of the prism

Tatiana [17]

I think it's 9 cause 4x4 equals 16 and 144/16 equals 9

5 0

4 years ago

Fred has 155 orange balloons Fred has 31 times more orange balloons than Dan how many orange balloons does Dan have?

olga2289 [7]

Answer:

Step-by-step explanation:

since Fred has 31 times more balloons then Dan, and Fred has 155, 155/31=5

7 0

3 years ago

Alison has three times as many dimes as quarters in her purse. She has $9.35 altogether. How many coins of each type does she ha

azamat

<h3>Answers: 17 quarters and 51 dimes</h3>

========================================================

Work Shown:

x = number of quarters

3x = number of dimes

0.25x = value of just the quarters, in dollars

0.10(3x) = 0.30x = value of just the dimes, in dollars

0.25x+0.30x = 0.55x = total value in dollars

0.55x = 9.35

x = (9.35)/(0.55)

x = 17

Alison has 17 quarters and 3x = 3*17 = 51 dimes

17 quarters = 17*0.25 = $4.25

51 dimes = 51*0.10 = $5.10

17 quarters + 51 dimes = $4.25 + $5.10 = $9.35

The answers are confirmed.

5 0

2 years ago

Elimination_4x_2y=14 _10x+7y=_24

Gnesinka [82]

Answer:

The answer is $x=-\frac{50}{8}$ and $y=\frac{11}{2}.$

Step-by-step explanation:

Given:

-4x-2y=14

-10x+7y=-24

Now, to solve it by elimination:

$-4x-2y=14$ ......(1)

$-10x+7y=-24$ ......(2)

So, we multiply the equation (1) by 7 we get:

$-28x-14y=98$

And, we multiply the equation (2) by 2 we get:

$-20x+14y=-48$

Now, adding both the new equations:

$-28x-14y+(-20x+14y)=98+(-48)$

$-28x-14y-20x+14y=98-48$

$-28x-20x-14y+14y=50$

$-8x=50$

Dividing both the sides by -8 we get:

$x=-\frac{50}{8}$

Now, putting the value of $x$ in equation (1):

$-4x-2y=14$

$-4(-\frac{50}{8})-2y=14$

$\frac{200}{8} -2y=14$

$25-2y=14$

Subtracting both sides by 25 we get:

$-2y=-11$

Dividing both sides by -2 we get:

$y=\frac{11}{2}$

Therefore, the answer is $x=-\frac{50}{8}$ and $y=\frac{11}{2}.$

5 0

3 years ago