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artcher [175]
3 years ago
13

Sarah correctly answers 21 questions on her reading test. There are 30 questions on the test.

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

Answer:

I think it is 70% :)

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Which is greater? X + -6 or X + -2<br>​
irina1246 [14]
X is just a place holder so it really depends if you know what x is but for right now let’s say it’s 0
Ok so -6 is less than -2 so the larger the negative number is the less it is if that makes sense so the greater number is -2
So x+-2 is greater
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3 years ago
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A design engineer wants to construct a sample mean chart for controlling the service life of a halogen headlamp his company prod
ArbitrLikvidat [17]

Answer:

1 495 500 505 500

2 525 515 505 515

3 470 480 460 470

Step-by-step explanation:

Suppose to be sample are

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In the given sample if sample 3 is difficult to control .Because engineer wants to construct a sample mean controlling the service to his company produces.In sample set first two sets have continuous four headlamps but in third it is difficult to handle the control.

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Solution of the equation<br> 3x/5+1 = 4x/15+7
Inessa05 [86]

Answer:

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Step-by-step explanation:

\frac{3x}{5} +1=\frac{4x}{15} +7

\frac{3x}{5} -\frac{4x}{15} =7-1

\frac{9x}{15} -\frac{4x}{15} =6

5x/15=6

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x=18

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Answer:

-15 and 9

Step-by-step explanation:

-3 - 12 = -15

-3 + 12 = 9

7 0
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Algebra 1 please help with 6,7
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Answer:7 is I _9and 3

Step-by-step explanation:

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