MATHEMATICS COLLEGE

Michael started a savings account with $300. After 4 weeks, he had $350 dollars, after 9 weeks, he had $400. What is the rate of change of money in his savings account per week?

Answers

Answer 1
Answer:

Answer:

$12.50 per week

Step-by-step explanation:

See photos

Read first four weeks first

then read next four weeks

last read over eight weeks

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Solve the
equation:
6x = -78

Answers

Answer:

Step-by-step explanation:

6x= -78 you just solve it algabraicly

  6x= -78

    /6x  /6x

    x= -13

Answer:

x = 13

Step-by-step explanation:

Divide both sides of the equation by the same term

6x/6 =78/6

Simplify

Cancel terms that are in both the numerator and denominator

6x/6=78/6

x=78/6

Divide

x=78/6

x=13

Hope this helps!

Write an expression that is equivalent to (4x+3)+(-2x+4)

Answers

Combine like terms

2x+7

Match the operations with the order in which you should do them whensimplifying an exponential expression.

Answers

Answer:

It should go exponents, multiplication and division, then addition and subtraction

Step-by-step explanation:

By using PEMDAS, for order of operations, it's easier to remember which set comes first. (parentheses, exponents, multiplication, division, addition, subtraction)

A circle with a diameter of 36 inches is shown.circle with diameter of 36 inches

What is the area of the circle using π = 3.14?

113.04 in2
452.16 in2
1,017.36 in2
4,069.44 in2

Answers

Answer:

1017.36 in²

Step-by-step explanation:

Information we need to know:

Radius = diameter ÷ 2

Area of circle = πr²

1) Find the radius of the circle

We have to make sure the we are using the radius of the circle instead of the diameter as the formula using the value of r. If we were to use the diameter our answer would be wrong.

  • 36 ÷ 2 = 18

2) Find the area

To find area we can distribute the numbers given into the formula...

  • 3.14 (π) x 18 (r)² = 1017.36

Hope this helps, have a lovely day! :)
Answer:

A = 1,017.36 in²
The answer is option C

Step by step solved:

The formula to calculate the area of a circle is

A = πr²,

where A is the area and r is the radius of the circle. In this case, the diameter of the circle is given as 36 inches, so the radius is half of that, which is 18 inches.

Using the value of π as 3.14, we can plug in the values and calculate the area as follows:

A = πr²
A = 3.14 x 18²
A = 3.14 x 324
A = 1,017.36 in²

Therefore, the area of the circle with a diameter of 36 inches using π = 3.14 is 1,017.36 in². The answer is option C

Two bags hold a total of 31 baseballs. The smaller one has 13 baseballs. How many baseballs are in the larger bag?

Answers

31 in total and the smaller one has 13. So just subtract 31-13 and it means there are 18 balls in the larger bag

A quadrilateral has angles that measure 44°, 89°, and 127°. What is the measure of the fourth angle?

Answers

The sum of angles in a quadrilateral = 360 degrees.

Let the fourth angle be x:

Therefore:  44 + 89 + 127 + x = 360

260 + x = 360

x = 360 - 260

x = 100

x = 100°

I hope this helps.
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