3 years ago

(Write the rate as a fraction, then find each unit rate.)

Mathematics

1 answer:

julsineya [31]3 years ago

8 0

1800 / 5....unit rate = 360/1...which is basically saying the wheel rotates 360 degrees every revolution

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Simplify the expression -3 devided by -2/5. A. -7 1/2 B. -1 1/5 C. 1 1/5 D. 7 1/2

Llana [10]

Answer:

D. 7 1/2

Step-by-step explanation:

-3 divided by -2/5

-(-3(-5/2)

-(-3 x 5/2)

-15/2

7 1/2

Hope it helps

7 0

3 years ago

What is the value of y? Y Y 60 O A. 120° B. 60° C. 40° O D. 30°

Grace [21]

Answer:

B. 60°

Step-by-step explanation:

1. The measure of all angles in a triangle sum up to 180°. This means that y + y + 60 = 120.

2. (Solving)

Step 1: Simplify both sides of the equation.

$(y+y)+(60)=180$
$2y + 60 = 180$

Step 2: Subtract 60 from both sides.

$2y + 60 - 60 = 180 - 60$
$2y = 120$

Step 3: Divide both sides by 2.

$\frac{2y}{2}=\frac{120}{2}$
$y = 60$

Step 4: Check if solution is correct.

$(60)+(60)+60 = 180$
$120 + 60 = 180$
$180 = 180$

Therefore, the answer is B. 60°.

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2 years ago

If the mean is 7, what is the total amount?

tatuchka [14]

Answer:

mean if 7

Step-by-step explanation:

the mean is 7

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3 years ago

If 10 man can work 6hours.How many more men are needed towork in 4 hours

Lerok [7]

Answer:

5 more men

Step-by-step explanation:

10 men do a job in 6 hours.

To do the job in 2 hours, 1/3 of the time, you need 3 times as many men.

30 men do a job in 2 hours.

To do the job in twice the time, 4 hours, you need half the men.

15 men do a job in 4 hours.

15 men - 10 men = 5 men

You need 5 more men.

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2 years ago

The angle of the semicircle is: a) 120 c) 180 b)60 d)90

AlexFokin [52]

Since there is no semicircle, the angle is 0.

8 0

3 years ago

Read 2 more answers