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3 years ago

Put x^2+15x+56 and make it into a word problem!

1 answer:

7 0

Kevin throws a ball from a point that is 56 ft above the ground. The height of the ball from the ground after “x” seconds is defined by the function h(x)= 40x + x^2

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Will give brainlist to first correct answer----The given data set shows the number of books read by eight children in a reading

Lesechka [4]

40 is considered an outlier since it it much further out on the data scale
Hope this helps!

8 0

3 years ago

a woman has $28,000. part is invested for one year in a certificate of deposit paying 7% interest, and the remaining amount in c

alexira [117]

Answer:

Amount invested at 7% = 16000

Amount invested at 9% = 12000

Step-by-step explanation:

Let x be the amount invested at 7% and y be the amount invested at 9%.

Since the total amount invested is $28000, therefore, we can set up the first equation as:

$x+y=28000$

Secondly, we are give that sum of two investments is $2200. Therefore, we can write the second equation as:

$0.07x+0.09y=2200$

Now we need to solve these two equations to get the values of x and y.

First of all, we multiply the second equation with 100 in order to get rid of decimal values.

$(0.07x+0.09y)*100=2200*100\\7x+9y=220000$

Let us use substitution method here. First of all we will solve for y from first equation and plug that into second equation.

$y=28000-x$

$7x+9(28000-x)=220000\\7x+252000-9x=220000\\-2x=-32000\\x=16000$

Therefore, amount invested at 7% is $16000 and amount invested at 9% is 28000-16000=$12000.

7 0

2 years ago

How do you solve this math problem of ratio?

Alex17521 [72]

I don't know, this is tricky

8 0

3 years ago

The width of a rectangle is 3ft less than the length. The perimeter is 62ft. Find the length and width of the rectangle.

Assoli18 [71]

I believe the length of the rectangle is 17 ft and the width is 14

8 0

3 years ago

What would y equal if you substituted 2 in y+2x=3

Ivahew [28]

Answer:

-1

Step-by-step explanation:

Given the equation:

$y+2x=3$

Substitute $x=2$ into this equation:

$y+2\cdot 2=3\\ \\y+4=3$

Subtract 4:

$y+4-4=3-4\\ \\y=-1$

8 0

3 years ago

Put x^2+15x+56 and make it into a word problem!​

Put x^2+15x+56 and make it into a word problem!