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3 years ago

Twenty-one is 20% of ________.

Mathematics

1 answer:

Elanso [62]3 years ago

4 0

To find the answer for this, divide 21 by the percentage:

21 / 20% = 21 / 0.20 = 105

21 is 20% of 105

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What is the solution to this equation?

Orlov [11]

Answer:

D. x=12

Step-by-step explanation:

Add 17 to the other side of the equal sign

x=17+5

Then add 17 and -5

X=12

6 0

3 years ago

Rectangle measures 10 inches by 5 inches. Rectangle B is a scaled copy of Rectangle Select all of the measurement pairs that cou

Reika [66]

Answer:

I would help but the thing is there is no options so sorry man

Step-by-step explanation:

4 0

3 years ago

2(3/5x+3). How would I get that answer

Airida [17]

Answer: $\frac{6}{5}$ x + 6

Step-by-step explanation:

We will use the order of operations, also known as PEMDAS. See attached. Please note that we cannot do what is in the parentheses first because we have a variable, so we will distribute the 2 into it. Since this is an expression, I do not believe we can fully solve for x, but can only simplify.

Given:

2(3/5x+3)

Distribute:

2 * (3/5x) + (2 * 3)

6/5x + 6

Answer:

$\frac{6}{5}$ x + 6

5 0

2 years ago

A patio 44, feet wide is being constructed next to a house. To drain water off the patio and away from the house, a slope of 1/2

navik [9.2K]

Answer:

the total difference in height will be 22 inches

Step-by-step explanation:

since the slope is 0.5 inch per foot, and the patio is 44 feet wide, the end of the patio will be 0.5 x 44 = 22 inches lower

the slope measures how much the height (Y axis) will change as the length (X axis) increases by 1 unit. In this case, since the height decreases as the length increases the slope is negative.

3 0

3 years ago

Which expression is equal to 632?

kkurt [141]

Answer:

3. $2^{3} (3*5^{2} + 2^{2} )$

Step-by-step explanation:

I think your question missed key information, allow me to add in and hope it will fit the orginal one. Please have a look at the attached photo

My answer;

We use oder of operation to solve this question

We have BEDMAS, which means:

B - Brackets

E - Exponents

D - Division

M - Multiplication

A - Addition

S - Subtraction

In 4 answer, only answer is correct:

$2^{3} (3*5^{2} + 2^{2} )$

= $2^{3}$ (3*25 +4)

= $2^{3}$ (79 + 4)

= $2^{3}$ *83

= 8*83

= 664

3 0

3 years ago