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ahrayia [7]
2 years ago
13

- x - 4 y - z = 7 - 3 x + 4 y + 5 z = - 3 x + 2 y = - 4

Mathematics
2 answers:
densk [106]2 years ago
5 0

Answer:

Step-by-step explanation:

Evaluate

−

x

−

4

y

−

z

, then set it equal to

−

4

.

=

−

4

lana [24]2 years ago
3 0

Answer:

y = -x/2 - 2 and z = x + 1

Hope This Helps!!!

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A box has 30 pencils in it.the probability of picking a red pencil is 1/6.How many red pencils are in the box
podryga [215]

Answer:

\huge\boxed{\sf  5\ red\ pencils}

Step-by-step explanation:

Total pencils = 30

Probability of picking a red = 1/6

Red pencils in the box = probability × total pencils

= 1/6 × 30

= 5 red pencils

So, there are 5 red pencils in the box.

\rule[225]{225}{2}

Hope this helped!

<h3>~AH1807</h3>
8 0
2 years ago
There are 3.2 million teachers in the United States and 5.66 x 107 students. How many times more students than
Marat540 [252]

Answer:

602.42 million

Step-by-step explanation:

I know the answer is 602.42 million because I used addition and subtraction.

First, I knew there was 5.66x 107 million students. So, I multiplied 5.66 and 107, and I got 605.62 million. I knew there were 3.2 million teachers in the US. Next, I subtracted 3.2 million from 605.62 million.

605.62-3.2=602.42

So, there are 602.42 million more students than teachers in the United States.

3 0
3 years ago
What is the probability of getting a 6 each time if a die is rolled 4 times?
aleksley [76]
Kinda low, you would need luck to be on your side!
4 0
3 years ago
Read 2 more answers
2) Zack ran 6 miles this weekend. How many feet did Zack run over the weekend?​
LekaFEV [45]

Answer:

zach ran 31680 feet over the weekend.

Step-by-step explanation:

1 mile = 5280, so 6 x 5280 = 31680

7 0
2 years ago
In a survey of 400 randomly selected​ people, it was determined that 22 play soccer. What is the probability that a randomly sel
insens350 [35]

Answer:

5.5% probability that a randomly selected person plays​ soccer

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Desired outcomes:

People surveyed who play soccer, so D = 22

Total outcomes:

Total people surveyed, so P = 400

What is the probability that a randomly selected person plays​ soccer?

P = \frac{D}{T} = \frac{22}{400} = 0.055

5.5% probability that a randomly selected person plays​ soccer

6 0
2 years ago
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