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3 years ago

Solve. -5/6m = -60.

Mathematics

1 answer:

GenaCL600 [577]3 years ago

5 0

Answer:

m = 72

Step-by-step explanation:

Multiply each side by reciprocal which is -6/5.

When -60 is multiplied by -6/5 the answer is 72

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Brian can lay a slab of concrete in 6 hours, while Greg can do it in 4 hours. If Brian and Greg work together, how long will it

anastassius [24]

Answer:

2 2/5 hours

Step-by-step explanation:

In 6 hours Brian can lay 1 slab of concrete

dividing both side by 6

in 6/6 hours Brian can lay 1/6 slab of concrete

Thus, in 1 hour Brian can lay 1/6 slab of concrete

In 4 hours Greg can lay 1 slab of concrete

dividing both side by 4

in 4/4 hours Greg can lay 1/4 slab of concrete

Thus, in 1 hour Greg can lay 1/4 slab of concrete

Thus, total part of slab laid by both in 1 hour when they work together

1/6 + 1/4 = 4+6/(6*4) = 10/24 = 5/12

5/12 of slab of concrete is laid by both of them in 1 hour

time taken to lay 5/12 of slab = 1 hour

dividing both side by 5/12

time taken to 5/12/ 5/12 of slab = 1/5/12 hour = 12/5 hours

time taken to 1/1 of slab = 12/5 hours = 2 2/5 hours

Thus,

it takes 2 2/5 hours to lay the full slab of concrete when Brian and Greg work together,

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4 years ago

If a factory produces 1,672 steering wheels during an 11 hour shift , what is the production rate of steering wheels per hour? [

d1i1m1o1n [39]

152 per hour. Just take the 1672 and divide it by 11 to get your rate of change

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2 years ago

There are 10 boys and 10 girls in a classroom.

IgorLugansk [536]

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3 years ago

Read 2 more answers

What is the value of x?<br><br> sin(x+22)°=cos(2x−7)°

Snezhnost [94]

Remember that $\sin(\theta) = \cos(90^\circ - \theta)$

Thus, we can solve for x.
x + 22 = 90 - (2x - 7)
x + 22 = 97 - 2x
3x + 22 = 97
3x = 75
x = 25

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3 years ago

Find the distance between E(-3,4) and B(-1,6)

Marrrta [24]

Answer:

The answer is

<h2> $2 \sqrt{2 } \: \: or \: \: 2.828 \: \: \: units$ </h2>

Step-by-step explanation:

The distance between two points can be found by using the formula

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

E(-3,4) and B(-1,6)

The distance between them is

We have the final answer as

<h3> $2 \sqrt{2 } \: \: or \: \: 2.828 \: \: \: units$ </h3>

Hope this helps you

4 0

3 years ago

Solve. -5/6m = -60. ​

Solve. -5/6m = -60.