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zvonat [6]
2 years ago
5

8. If the measure of one side of a square is increased by 2 centimeters and the measure of

Mathematics
1 answer:
GalinKa [24]2 years ago
8 0

Answer:

  6 cm

Step-by-step explanation:

If the original side length is x, then the modified square has an area of ...

  A = LW

  32 = (x +2)(x -2) = x^2  -4

  36 = x^2 . . . . . . . . add 4

  6 = x . . . . . . . . . . take the square root

The original figure has a side length of 6 cm.

__

<em>Check</em>

The modified figure is 8 cm by 4 cm = 32 cm^2.

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Alice earned $622.50 in interest on her savings in the bank. Before interest, the account had $12,450. What is the approximate p
Akimi4 [234]
Hi there

To find The interest rate the formula is
R=I÷pt
r interest rate?
I interest earned 622.5
P principle 12450
T time 1 year
So
R=622.5÷(12,450×1)
R=0.05×100=5%

Hope it helps
6 0
3 years ago
!SUBSTITUTION METHOD!<br><br>6y - 5z = -8 <br>3z = -6 <br>4x - 3y - 2z= 21​
hichkok12 [17]

Answer:

<h2>x = 2 </h2><h2>y = - 3</h2><h2>z = - 2</h2>

Step-by-step explanation:

6y - 5z = -8 .......... Equation 1

3z = -6 ................... Equation 2

4x - 3y - 2z= 21...... Equation 3

<u>First solve for z in Equation 2</u>

That's

3z = - 6

Divide both sides by 3

<h3>z = - 2</h3>

Next substitute the value of z into Equation 1 in order to find y

We have

6y - 5(-2) = - 8

6y + 10 = - 8

6y = - 8 - 10

6y = - 18

Divide both sides by 6

<h3>y = - 3</h3>

Finally substitute the values of y and z into Equation 3 to find the value of x

That's

4x - 3(-3) - 2(-2) = 21

4x + 9 + 4 = 21

4x + 13 = 21

4x = 21 - 13

4x = 8

Divide both sides by 4

<h3>x = 2</h3>

So the solutions are

<h3>x = 2 </h3><h3>y = - 3</h3><h3>z = - 2</h3>

Hope this helps you

3 0
3 years ago
Drag and Drop the correct answer into the boxes below.
scoray [572]

Answer:

the first blank is 100

the second is 80

Step-by-step explanation:

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Murljashka [212]

Answer:

c is the one with function

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3 years ago
The number of students in sixth grade is 1.03 times the number of students in seventh grade. What percent is equivalent to 1.03?
Minchanka [31]
Move the decimal to the right twice to make this into a percent:

1.03 —-> 103%
8 0
2 years ago
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