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liraira [26]
3 years ago
7

A worker uses 560 inches of steel wire to make 350 springs of the same size. At this rate how many inches of steel wire are need

ed to make 1 spring?
Mathematics
1 answer:
eduard3 years ago
7 0

Answer:

1.5 inches of steel

Step-by-step explanation:

450/300

=1.5 in.

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Anne and Willow are reading the copy of the same magazine for an assignment.
Kamila [148]

Answer:

Page number 74

Step-by-step explanation:

Let

x ---> the number of days

y ---> the number of pages read

we know that

The linear equation in slope intercept form is equal to

y=mx+b

where

m is the slope

b is the y-intercept

we have

<em>Anne</em>

The slope is equal to

m=20\ \frac{pages}{day}

The y-intercept is equal to

b=14\ pages

substitute

y=20x+14 ----> equation A

<em>Willow</em>

The slope is equal to

m=22\ \frac{pages}{day}

The y-intercept is equal to

b=8\ pages

substitute

y=22x+8 ----> equation B

equate equation A and equation B

22x+8=20x+14

solve for x

22x-20x=14-8\\2x=6\\x=3\ days

Find the value of y

substitute the value of x in equation A or equation B

equation A

y=20(3)+14=74\ pages

equation B

y=22(3)+8=74\ pages

7 0
3 years ago
Whats the Estimate 646 + 738 and 646 + 738 also 356 + 467
Pavlova-9 [17]

Answer:

646+738=1380

356+467=820

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Evaluate:-19 - (-10) + (20) - (30) - (-15)<br> A) -4 <br> B) -3 <br> C) 3 <br> D) 4
Tresset [83]

So firstly, remember that <u>subtracting a negative number is the same as adding a positive number</u> so our expression will look like this:

-19+10+20-30+15

Now solve as such:

\underbrace{-19+10}_{-9}+20-30+15\\\\\underbrace{-9+20}_{11}-30+15\\\\\underbrace{11-30}_{-19}+15\\\\\underbrace{-19+15}_{-4}\\\\-4

<u>Your answer is -4, or A.</u>

4 0
3 years ago
Read 2 more answers
Pls help and thank you
Stells [14]

Answer:

b

Step-by-step explanation:

6 0
3 years ago
Please someone all 3 :)
san4es73 [151]

Answer:

1. Anne = 21 Bobby=35, 450, 70+40+30=140

Step-by-step explanation:

  1. 1 21÷3=7
  2. 7×5=35

  1. 7-2=250
  2. 5=250
  3. 1=50
  4. 2×50+7×50=100+350=450
  5. 450

  1. we can see that it's multiplied by 10, so 70+40+30=140
6 0
3 years ago
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