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3 years ago

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The question is located below and the answers are:

1 answer:

Sindrei [870]3 years ago

5 0

I thing it c

hope you got it right

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What is 21m-49n factored using GCF

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For the GCF the answer is 7

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A meeting takes place between a diplomat and fifteen government officials. However, ten of the officials are actually spies. If

tigry1 [53]

Answer:

the answer is 45% you are welcome

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3 years ago

What is the sum of a geometric sequence 1, 3, 9, ... if there are 12 terms?

attashe74 [19]

We know that
a1=1
a2=3
a3=9
a2/a1=3/1----> 3
a3/a2=9/3----> 3
<span>common ration r is equal to 3
number of terms n is 12

The </span><span>Sum of geometric series is given by the formula
</span>Sum=a1*[1-r<span>^n]/[1-r]
</span>Sum=1*[1-3^12]/[1-3]-----> Sum=[1-3^12]/[1-3]----> [3^12-1]/[3-1]
<span>Sum=531440/2-----> 265720

the answer is
265720

</span>

4 0

3 years ago

What is an expression that equals 24 that includes an exponent

statuscvo [17]

5∧2(exponent of 2) - 1 =24

7 0

3 years ago

Two mechanics worked on a car. The first mechanic worked for 5

ArbitrLikvidat [17]

<u>Answer:</u>

$50 and $115

<u>Step-by-step explanation:</u>

We know that,

the sum of the two rates = $165 per hour

Let x and (165 - x) represent the $/hour of the 15hr and 5hr mechanics respectively.

Then combining their charges together to get:

$(x*15)hour+(165-x)*5 hour=1325$

Solving for x to get:

$15x-5x+825=1325$

$10x=500$

$x=50$

So the rate charged per hour by one mechanic is $50 and for the other mechanic = $(165-50)=$ $115.

8 0

3 years ago