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Zielflug [23.3K]
2 years ago
11

What is the mathematical definition of the Subtraction Property of Equality?

Mathematics
2 answers:
emmasim [6.3K]2 years ago
6 0
I just learned this today. 

In my case, You can add or subtract the same quantity from both sides and retain the equality.

For example: If a=b, then a-c=b-c

Additive and Subtractive Property of Equality are the Same Thing

Credit to my math Teacher for this
Vinvika [58]2 years ago
4 0
When both sides of an equation have the same number subtracted from each of them, so the remaining part of the equation is still equal
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The lines dont intersect

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3 years ago
If the length of a rectangle is three times it’s width and it’s parameter is 24cm what is the area
katrin [286]

Answer:

Area = 27 cm²

Step-by-step explanation:

let L be the length of the rectangle

    w the width

    P the perimeter

    A the area

<u>Formulas</u> :

P = 2×(L + w)

A = L × w

<u>We are Given</u> :

L = 3w

P = 2×(L + w)

⇔ 24 = 2×(3w + w)

⇔ 24 = 2×4w

⇔ 24 = 8w

⇔ w = 24/8 = 3

Then

L = 3w = 3×3 = 9

We obtain L = 9 and w = 3.

Then

A = L × w

  = 9 × 3

  = 27

6 0
2 years ago
Markus was given dollar bills from his grandfather each day for one week. On the first day he received $1, on the second day he
snow_tiger [21]

Answer:  $127.00

Step-by-step explanation:

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4 0
3 years ago
Find the measure of the indicated angle
Margarita [4]

Answer:

the unknown angle is 88°

Step-by-step explanation:

the exterior angle of a triangle is equal to the sum of the opposite interior angles. Therefore, in the tall triangle, 60 + 40 = 100, meaning the bottom left angle in the small triangle is 100-64=36. And b/c angle sum of a triangle is 180°, 180-36-56=88°

6 0
3 years ago
Read 2 more answers
At what interest rate must you invest $4500 to have $7,000 after 6 years, if the interest is compounded quarterly?
labwork [276]

Answer:

The amount is $8358.7 and the interest is $3858.7.

Step-by-step explanation:

Explanation

STEP 1: To find amount we use formula:

A=P(1+rn)n⋅t

A = total amount

P = principal or amount of money deposited,

r = annual interest rate

n = number of times compounded per year

t = time in years

In this example we have

P=$4500 , r=7% , n=2 and t=9 years

After plugging the given information we have

AAAA=4500(1+0.072)2⋅9=4500⋅1.03518=4500⋅1.857489=8358.7

STEP 2: To find interest we use formula A=P+I, since A=8358.7 and P = 4500 we have:

A8358.7II=P+I=4500+I=8358.7−4500=3858.7

4 0
3 years ago
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