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Aleks04 [339]
3 years ago
10

18 minus 4 times a number is negative two

Mathematics
2 answers:
svp [43]3 years ago
8 0

Answer:

18-4n = -2

Hope this helps :)

Lorico [155]3 years ago
7 0

Answer:

5

Step-by-step explanation:

18-4(5)=-2

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4)
slamgirl [31]
B is the correct answer, 3z^2 + 4z + 1
I just used the box method as it’s much easier for me but you can also use the 1331 method.

4 0
2 years ago
A cutting tool fails due to flank wear while machining. It is observed that the tool life at a cutting speed of 160 m/min is 5 m
Ahat [919]

Answer:

The answer is:

30 minutes.

Step-by-step explanation:

We are given the following information:

at 160 m/min, tool life = 5 min.

at 120 m/min, tool life = 17 min.

This means that as the speed reduced from 160 m/min to 120 m/min, the tool life increased from 5 min. to 17 min, hence the difference between the changes are:

speed = 160 - 120 = 40 m/min

tool life = 17 - 5 = 12 min.

Therefore, it can be concluded that a change of speed of 40 m/min, increases the tool life by 12 min.

40 m/min = 12 min

∴ 1 m/min = 12/40 min.

∴ 100 m/min = 12/40 × 100 = 0.3 × 100 =30 min.

8 0
3 years ago
Simplify 25/26•13/15<br> HELPME
leva [86]
\frac{25}{26} * \frac{13}{15} =  \frac{25~*~13}{26~*~15} =  \frac{325}{390} = \frac{5}{6}
6 0
4 years ago
Read 2 more answers
If your yard is 6 feet wide and requires 96 pieces of sod that are cut into 1 foot squares, how long is it?
satela [25.4K]
Is the answer 44 feet wide? What I did was draw a rectangle an label both widths as 6, that equals 12. Then I subtracted 12 from 96 and got 84 and in order to only get one side length I divided it by 2 and got 42. Next I added 2 to that because the width of one side took up one foot and so did the other side so yeah. I'm just guessing.
3 0
3 years ago
Which expression is equal to : look at picture, i need help
ELEN [110]
I would say 4^0 would be the best answer
6 0
3 years ago
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