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Natali [406]
3 years ago
8

Three friends owe $18 to another friend for gas. If they plan to split the cost evenly, which of the following expressions could

they use to find how much they each owe?
18 ÷ 3
18 ÷ -3
-18 ÷ -3
-18 ÷ 3
Mathematics
1 answer:
Delvig [45]3 years ago
5 0
The first one.. 18/3 is the answer
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CAN SOMEONE HELP EXPLAIN THIS TO ME !!!!
Jet001 [13]
The quadratic formula is above.

You want each equation in standard form: ax^2 + bx + c = 0
I begin each problem by defining variables.
For instance 3. Is in standard form. X^2 -2x - 3 = 0. a = 1, b = -2, c = -3

Now use quadratic formula: x = [- b + or - sqrt(b^2 - 4ac)]\2a

8 0
3 years ago
A student has a savings account earning 3% simple interest. She must pay $1200 for first-semester tuition by September 1 and $12
Bingel [31]

Using simple interest, it is found that she needs to earn $2,391.07 during the summer.

<h3>Simple Interest</h3>

Simple interest is used when there is a single compounding per time period.

The amount of money after t years in is modeled by:

A(t) = A(0)(1 + rt)

In which:

  • A(0) is the initial amount.
  • r is the interest rate, as a decimal.

For this problem, the objective is to have <u>$1200 in 3 months = 0.25 years</u>, hence the parameters are given as follows:

A(0.25) = 1200, t = 0.25, r = 0.03.

Hence we have to solve for A(0):

A(0)(1 + 0.03 x 0.25) = 1200

A(0) = 1200/(1 + 0.03 x 0.25)

A(0) = $1,191.07.

She also needs to earn $1,200 to pay the first-semester bill on time, hence:

1200 + 1191.07 = $2,391.07.

She needs to earn $2,391.07 during the summer.

More can be learned about simple interest at brainly.com/question/16646150

#SPJ1

3 0
1 year ago
I need to know #25. What is p? Hurry please
pav-90 [236]
I got -3.........................

-7 - 7p = 3p + 23

Move the -7p over to the right....by adding
-7 = 10p +23
Move the 23 over to the left by subtracting
-30 = 10p
divide by 10
p = -3

7 0
3 years ago
Read 2 more answers
Factor the polynomials completely. If the polynomial cannot be factored, write "prime."
Monica [59]

Answer:

4) -(m+12)(m-12)

5) (y+12)^2

6) (x+5)(x-5)(x^2-25)

7) (a+9)(-y+7)

8) Prime

9) Prime

Hope this helps!


7 0
3 years ago
Can you plese help me
Luba_88 [7]

Answer:

I think Output relationship is 3,-2,3,-2 and Input relationship is -2,3,1,0.

7 0
2 years ago
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