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3 years ago

Identify the property that is being used to solve the problem:

Mathematics

1 answer:

USPshnik [31]3 years ago

4 0

Answer:

Addition Property of equality

Step-by-step explanation:

The same number is added to both sides of the equations,

so the addition Property of equality is used.

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Jake walked 1 mile in 15 minutes. This week he walked 1 mile in 12 minutes. What is the percent of decrease in Jakes time to wal

dsp73

His time to walk a milk decreased by 20%.

6 0

3 years ago

Guengle works in urban landscape design a truck arrived pouring a cone shaped pile of gravel six feet high with a diameter at th

Dennis_Churaev [7]

Answer:

$105.56\ ft^3$ of gravel was used.

Step-by-step explanation:

Given that,

The height of a cone, h = 6 feet

The diameter of the base of cone, d = 8.2 feet

Radius, r = 4.1 feet

We need to find the amount of gravel was delivered. The volume of a cone is given by :

$V=\dfrac{1}{3}\pi r^2 h\\\\=\dfrac{1}{3}\times 3.14\times 4.1^2\times 6\\\\V=105.56\ ft^3$

So, $105.56\ ft^3$ of gravel was used.

8 0

3 years ago

Nikita ran a 5-kilometer race in 39 minutes (0.65 of an hour) without training beforehand. In the first part of the race, her av

algol [13]

First part of the race

speed1, s1 = 8.75 km/h
distance1 = 5 km - x
time 1 = 0.65 h - t

Second part of the race

speed2, s2 = 6 km/h
distance2 = x
time2 = t

s2 = x/t = 6 ⇒ t = x / 6

s1 = [5 - x] / [0.65 - t] = 8.75

5 - x = 8.75 [0.65 - t]

5 -x = 8.75(0.65) - 8.75t

5 - x = 5.6875 - 8.75 (x/6)

5 - x = 5.6875 - 1.4583x

1.4583 x - x = 5.6875 - 5

0.4583 x = 0.6875

x = 0.6875 / 0.4583 = 1.5

6 0

3 years ago

Find the degree of each monomial:<br><br>a. 25<br>b. x⁴y

azamat

a. 25 = 0

b. x⁴ y = 5

____o___o____

$a. \: 25 = 25 {x}^{0} = 0$

$b. \: \: {x}^{4} y = 4 + 1 = 5$

I hope I helped you^_^

8 0

3 years ago

What’s the answer, I believe it’s 4, and D

Lapatulllka [165]

Okay so yes for the first one it is 4 Sig digs

And I believe you are correct on the 2nd one.. I beleive it is also D.

Go with your gut! And good luck! :D

8 0

3 years ago