Ariel deposited $100 into a bank account. Each friday she will withdraw 10% of the money in the account to spend. Ariel thinks her account will be empty after 10 withdrawls. Do you agree explain.

Answers

Answer 1

Answer:

Answer: Yes, I agree. $10 will be withdrawn every Friday, resulting in the $100 she deposited being completely gone after 10 withdrawals.

Step-by-step explanation: You will want to find the amount of money being taken from the $100 withdrawal first. Turn the percent into a decimal, which should result to 0.10. Take this decimal and multiply it with 100 to get the amount of money being taken out of the account each week, which should be $10. I would go about answering this by multiplying the $10 by the amount of 10 withdrawals. This would result in 100. This answers the question because we are trying to see if 10 withdrawals will completely deplete the $100 in the account.

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You are baking cupcakes for your class. There are 30 total students in your class and you have baked 15 cupcakes. Write andsolve an equation to find the additional number of cupcakes you need to bake in order to have 3 cupcakes for each student.
Write your equation so that the units on each side of the equation are cupcakes per student.
Equation:
= 3
Number of cupcakes: x=

Answers

The equation is 3=(x+15)/30 and the number of additonal cupcakes to be made is 75.

What is equation?

An equation is a relationship between the variables and constants representing how they are related to each other. It includes equal to "=" sign.

It is known that each student will have 3 cupcakes. So, right side of the equation will be 3.

After 15 cupcakes, x more cupcakes are needed. So, the total number of cupcakes is x+15.

Since there are 30 students, the number of cupcakes per student will be (x+15)/30

Determine the equation and solve it.

(x+15)/30=3

x+15=90

x=75

So, 75 more cupcakes are needed to be baked.

To learn more about equations click:

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Answer:

Equation: 15x+30=3

Number of Cupcakes: x = 75

Step-by-step explanation:

30 x 3 - 15 = 75

I hope this helps you :)

Which numbers multiply to 50 and add to 6

Answers

xy = 50
x + y = 6

$xy = 50$
$(xy)/(x) = (50)/(x)$
$y = (50)/(x)$

$x + y = 6$
$x + (50)/(x) = 6$
$(x^(2))/(x) + (50)/(x) = 6$
$(x^(2) + 50)/(x) = 6$
$x^(2) + 50 = 6x$
$x^(2) - 6x + 50 = 0$
$x = \frac{-(-6) \± \sqrt{(-6)^(2) - 4(1)(50)}}{2(1)}$
$x = (6 \± √(36 - 100))/(2)$
$x = (6 \± √(-64))/(2)$
$x = (6 \± 8i)/(2)$
$x = 3 \± 4i$
$x = 3 + 4i$ $or$ $x = 3 - 4i$

x + y = 6
  3 + 4i + y = 6
- (3 + 4i) - (3 + 4i)
y = 3 - 4i
(x, y) = (3 + 4i, 3 - 4i)

or
  x + y = 6
  3 - 4i + y = 6
- (3 - 4i) - (3 - 4i)
y = 3 + 4i
  (x, y) = (3 - 4i, 3 + 4i)

(x, y) = (3 ± 4i, 3 ± 4i)

The two numbers that multiply to 50 and add up to 6 are 3 ± 4i.

What is the area of a square whose perimeter is 12?

Answers

We know that a square has an equal height and width. So if all 4 sides, which are equal in length, add up to 12, then we can find the length of one side by dividing 12 by 4:
12/4= 3

If the length of one side is 3, we can multiply the height (3) by the width (3) to find the area.
3*3= 9

Answer: the area of the square is 9.

P=4L
12=4L
3=L

A=L^2
A=3^2
A=9

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