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4 years ago

How do you add and subtract fractions with the same denominator?

1 answer:

8 0

An example would be

8/12 - 4/12 = 4/12

8/12 + 4/12 = 12/12 = 1

Another example would be

13/24 - 9/24 = 4/24 = 1/6

13/24 + 9/24 = 22/24 = 11/12

Lastly, another example is:

4/6 - 3/6 = 1/6

4/6 + 3/6 = 7/6 = 1 1/6

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You received some inheritance from your great-grandparents. You invested the money for 4 years at 6% rate. If your received $2,1

Zigmanuir [339]

Answer: $9000

Step-by-step explanation:

Principal= Unknown

Rate = 6%

Time= 4 years

Simple Interest= $ 2160

Simple Interest= (P×R×T) ÷ 100

2160 = P×6×4/100

2160 = 24P/100

Cross multiply

2160 × 100 = 24P

216000 = 24P

Divide both side by 24

216000/24 = 24P/24

P = $9000

The inheritance was $9000.

5 0

4 years ago

Two angles are complementary. The measure of the largest angle is two times the measure of the smaller angle. What is the measur

skelet666 [1.2K]

An complementary angle = 90°

one of the angles is twice as large as the smaller one

let the larger angle be x, and the smaller = y

x = 2(y)
x + y = 90

Plug in 2y for x

2y + y = 90

simplify, combine like terms

2y + y = 90

3y = 90

isolate the y, divide 3 from both sides

3y/3 = 90/3

y = 90/3

y = 30

plug in 30 for y in the equation x + y = 90

x + (30) = 90

isolate the x, subtract 30 from both sides

x + 30 (-30) = 90 (-30)

x = 90 - 30

x = 60°

The measurement of the larger angle is 60°

hope this helps

3 0

4 years ago

A triangle with sides 40 feet 50 feet and 60 feet . On a drawing 1 inch equals 10 feet how long are the sides of the triangle on

natulia [17]

40/10=4

50/10=5

60/10=6

the triangle of the drawing has sides of 4 inch 5 inch and 6 inch

5 0

3 years ago

Given the equation of a circle below, find the diameter of the circle. Use only the digits 0-9 to enter the diameter.

Illusion [34]

Answer:

The diameter of the circle is 22 units.

Step-by-step explanation:

x² + y² - 16x + 12y = 21 I graphed this equation on the graph below.

If this answer is correct, please make me Brainliest!

6 0

3 years ago

Please help!! Which of the following is a solution to one of the inequalities graphed below but not a solution to the entire sys

murzikaleks [220]

Answer:

B. (-1,-5)

Step-by-step explanation:

In this graph, the darkest portion represents where the two inequalities intersect with each other. The areas with lighter shading is a solution of one of the inequalities.

From the question we can see that we are looking for which point ends up in the light grey area.

A. (4,-3) White

B. (-1,-5) Light Grey

C. (4,-2) White (This point lies on the inequalities's line. As this line is dotted, the points on it are not included, so this one is white.)

D. (3,1) Dark Grey.

As B is the only one that lies in the light grey area, this is the only correct answer.

7 0

4 years ago