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3 years ago

What is the reciprocal of 31/2

1 answer:

8 0

The reciprocal of a number is the number that the first number will multiply with that equals one.
So, for instance, the reciprocal of 3 is 1/3.
Since we can write 3 as 3/1, we can see it's simply flipping the numerator and denominator to find the reciprocal.
So, flipping numerator and denominator, the reciprocal of 31/2 is 2/31.

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Solve for x. + 5 = 30

sp2606 [1]

Answer:25

Step-by-step explanation:

6 0

4 years ago

Solve the following system of equations algebraically:<br> 4x - 5y = 18<br> 3x – 2y = 10

fiasKO [112]

Answer:

Step-by-step explanation:

Given the 2 equations

4x - 5y = 18 → (1)

3x - 2y = 10 → (2)

Multiplying (1) by 3 and (2) by - 4, then adding will eliminate the x- term

12x - 15y = 54 → (3)

- 12x + 8y = - 40 → (4)

Add (3) and (4) term by term to eliminate x, that is

- 7y = 14 ( divide both sides by - 7 )

y = - 2

Substitute y = - 2 into either of the 2 equations and solve for x

Substituting into (1)

4x - 5(- 2) = 18

4x + 10 = 18 ( subtract 10 from both sides )

4x = 8 ( divide both sides by 4 )

x = 2

solution is (2, - 2 ) → D

8 0

3 years ago

If a line of one billion people standing shoulder to shoulder stretches 420,334 miles what is the average shoulder width in feet

V125BC [204]

Answer:

2.21936352 feet

Step-by-step explanation:

420334*5280 (thats feet in a mile) divided by 1000000000

5 0

3 years ago

Read 2 more answers

Help plzzzzzzzzzzzzz

ZanzabumX [31]

1 1/2 * 3/4 =

Change 1 1/2 to an improper fraction = 3/2

3/2 * 3/4 = 6/4 * 3/4

6/4 * 3/4 = 18/4 = 4 2/4 = 4 1/2

The answer is 4 1/2.

Hope this helped☺☺

4 0

4 years ago

What is the perimeter of the fifth square in this pattern?

torisob [31]

The first square has side lengths of 4 units(because the square root of 16 is 4). The second square has side lengths of 8 units. The third square has side lengths of 12 units. As you can tell, the side lengths increase by 4. So the fourth square will have side lengths of 16 units, and the fifth square will have side lengths of 20 units. The question wants the perimeter, so the answer is 20*4(sum of 4 sides of equal lengths) which is 80 units.

5 0

3 years ago