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3 years ago

Solve for M and N please help me

Mathematics

1 answer:

son4ous [18]3 years ago

7 0

Answer:

M=4 N=6

Hope this helped!

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Machine A produces bolts at a uniform rate of 120 every 40 seconds, and Machine B produces bolts at a uniform rate of 100 every

Nutka1998 [239]

Answer:

25 seconds

Step-by-step explanation:

Hi there!

In order to answer this question, first we need to know how many bolts per second are produced by each machine, this can be known by dividing the number of bolts by the time it takes.

For machine A:

$A = \frac{120 bolts}{40 s}= 3 \frac{bolts}{s}$

For machine B:

$B = \frac{100 bolts}{20 s}= 5 \frac{bolts}{s}$

So, if the two machines run simultaneously, we will have a rate of prodcution of bolts equal to the sum of both:

$A+B=(3+5)\frac{bolts}{s}=8\frac{bolts}{s}$

Now, we need to know how much time it will take to producee 200 bolts, to find this out we need to divide the amount of bolts by the production rate:

$t = \frac{bolts}{ProductionRate}= \frac{200 bolts}{8 \frac{bolts}{s} }$

The <em>bolts</em> unit cancell each other and we are left with <em>seconds</em>

$t = \frac{200}{8} s = 25 s$

So it will take 25 seconds to produce 200 bolts with machine A and B running simultaneously.

Greetings!

4 0

3 years ago

Read 2 more answers

What is 17. 5% of 360

scZoUnD [109]

Answer:

Step-by-step explanation:

17.5% of 360 = 17.5% * 360

$=\frac{17.5}{100}*360\\=0.175*360\\\\= 63$

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3 years ago

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Zoe used 3/8 of her ribbon to wrap a present. If she uses 9 feet of ribbon for the present how much ribbon did Zoe have it first

MArishka [77]

Let the total ribbon Zoe had was x feet.

Out of x feet, she used 3/8 part of it.

Hence, $\frac{3x}{8}$

3/8 part of the original ribbon is equal to 9 feet.

Hence, we get

$\frac{3x}{8} = 9$

=> Multiply 8 on both sides.

$3x=72$

Divide both sides by 3

$\frac{3x}{3}=\frac{72}{3}$

$x=24 ft$

Zoe had 24 feet of ribbon in starting... Answer

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2 years ago

Consider a circle whose size can vary. The circumference of the circle is always 2π times as large as its radius. Let r represen

ser-zykov [4K]

Answer:a) C = 2πr

b) 37.68feet

c) r = C/2π

d) 5.89feet

Step-by-step explanation:

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3 years ago

Every day sandra eats 1/8 pound of a blueberries. If she does this for 9 days, how many pounds of blueberries did she eat?

IrinaVladis [17]

Answer: 1.125 pounds of blueberries or $1 \frac{1}{8}$ or $\frac{9}{8}$

Step-by-step explanation:

Since she will eat it for 9 days, just multiply or add the pounds.

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2 years ago