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VashaNatasha [74]
3 years ago
15

25 points

Mathematics
2 answers:
elixir [45]3 years ago
8 0
C. 4x + y = 21

4(3) + 9 = 21
12 + 9 = 21
21 = 21
natima [27]3 years ago
7 0
A=21 which is the correct answer
C=21 is also correct
Both A and C are correct
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6 0
3 years ago
The time t required to drive a certain distance varies inversely with the speed r. If it takes 2 hours to drive the distance at
Stolb23 [73]

Answer:

70

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
HELP PLZZ WHAT IS THE ANSWER DON't SEND A FILE PLZ explain step by step
lana66690 [7]

Answer:

x + 6, y - 4

Step-by-step explanation:

The original image would be the blue triangle, so you need to see how many units it takes to get to the red triangle.

Let's focus on R and R'.

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It would then be the same for the other two points.

4 0
3 years ago
Data on the oxide thickness of semiconductor wafers are as follows: 425, 431, 416, 419, 421, 436, 418, 410, 431, 433, 423, 426,
DanielleElmas [232]

Answer:

423

Step-by-step explanation:

The sample mean is a point estimate of the population mean.

Therefore a point estimate of the mean oxide thickness for all wafers in the population is the mean of the sample data on the oxide thickness of semiconductor wafers.

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7 0
3 years ago
Angel has $85 to spend . He spent $20 on food and saved the rest of his money for games. each game cost $5 Write an inequality t
galina1969 [7]

Answer:

85 = 5x + 20 is the inequality.

Step-by-step explanation:

Why is it right? Because I said so.

Just kidding. Here:

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Subtract 20 from both sides:

65 = 5x

Divide 65 by 5.

The answer of the question is: Angel can buy 13 games. (Angel! That's a waste of 65 bucks!)

8 0
3 years ago
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