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worty [1.4K]
3 years ago
12

2. El

Mathematics
1 answer:
Mashcka [7]3 years ago
6 0

Answer:

95

Step-by-step explanation:

step 1

Find out the total ball bearing ordered

Multiply the number of ball bearing boxes by the number of ball bearings in each box.

17(85)=1,445\ ball\ bearings

step 2

Find out the total springs ordered

Multiply the number of spring boxes by the number of springs in each box.

15(90)=1,350\ springs

step 3

To find out how many more ball bearings than  springs did they order, subtract the total number of springs from the total number of ball bearings

1,445-1,350=95

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If r(x)=3x-1 and s(x)=2x+1,which expression is equivalent to (r/s)(6)
Soloha48 [4]
( \frac{r}{s} )(6)= \frac{r(6)}{s(6)}

r(6)=3(6)-1=18-1=17
s(6)=2(6)+1=12+1=13
( \frac{r}{s} )(6)= \frac{r(6)}{s(6)}= \frac{17}{13}



5 0
3 years ago
Read 2 more answers
Which of the following is NOT a requirement for testing a claim about a standard deviation or​ variance? A. The sample is a simp
Luda [366]

Answer:

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5 0
4 years ago
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uranmaximum [27]

Answer: 10,000

Step-by-step explanation:

5 0
3 years ago
Find the sum of the geometrical equation -3 , 18 , -108 , if there are 7 terms
harina [27]

Hello from MrBillDoesMath!

Answer:

Sum = -119,962                    ( I hope!)

Discussion:

Let's determine the pattern.

first term:  -3

2nd term:  (-3) * (-6) = 18                     (multiply first term by -6)

3rd  term:  (18) * (-6) = -108                 (multiply 2nd term by -6)

4th term :  (-108)*(-6) = 648                ( etc)

5th term :  (648)*(-6) =  -3888            (etc)

6th term :  (-3888)*(-6) = 23328         (etc)

7th term:   (23328)*(-6) =  -139967     (etc)


Sum = -119,962


A simpler way to do this is to use the formula for the sum of a geometric series to n terms. The series is

-3  Sum ( -6)^n                n = 0, 1, 2, 3, 4, 5, 6


Regards,  

MrB

P.S.  I'll be on vacation from Friday, Dec 22 to Jan 2, 2019. Have a Great New Year!


3 0
3 years ago
Simplify: 2(4x - 6) - 8 + 10x
Darya [45]

Answer:

Hi there!

The simplified version is:

18x-20

Step-by-step explanation:

2(4x-6) -8 +10x

First, multiply the 2 by the parentheses.

8x -12 -8 +10x

Next, combine like terms

18x -20

This is the simplified version!

Hope this helps

6 0
4 years ago
Read 2 more answers
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