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Gekata [30.6K]
2 years ago
13

You are given the following system of equations: y:

Mathematics
1 answer:
deff fn [24]2 years ago
8 0

Answer:

70.

Step-by-step explanation:

1) to calculate the values of the 'x':

4x+15=x²-13x+85; ⇔ x²-17x+70=0; ⇔

x₁=7; x₂=10;

2) to calculate the required k:

k=x₁*x₂; k=7*10=70.

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The same digits are used for the expressions 32 and 23. Select the symbol that correctly compares the expressions.
sineoko [7]

Answer:

32 > 23.

Step-by-step explanation:

We are given with 32 and 23. We need to compare them. If we use number line 32 is always greater than 23.

So, 32>23

5 0
3 years ago
Two points -5.2 and 4.8 are on a number line. What is the distance, to the nearest tenth, between these two points?
Cerrena [4.2K]
-5.2 -4.8= -10 thats your answer and it easy math.
3 0
3 years ago
Shalane owns a flower nursery in a small town. She took an inventory of the number and types of flowers she sold this month.
Mrac [35]
So since 60+43+24+14+18+35+6= 200 and she sold 14 hyacinths out of those 200 flowers, you are trying to find how many flowers she should anticipate selling out of 2,000. The equation looks like this:
14/200 = ?/2,000
To find out what the value of ? is, find out how the denominators are related. To do this, do 2,000 divided by 200 which equals 10. To keep the fractions equivalent, what you do to the top, you must do to the bottom. So if 200 x 10= 2,000   14 x 10 will be your answer. 14 x 10= 140
14/200 = 140/2000

So, out of 2,000 flowers Shalane should anticipate selling 140 hycinths.

I hope this helps:)
6 0
3 years ago
Helen wrote the following facts to try to show that division by 0 results in 0. Explain her error.
earnstyle [38]

Helen should of put 0 first, because if you're gonna divide, you need to put the product first, then one of the factoes.

So instead it should be 0÷(-7)=0

3 0
3 years ago
which expressions represent the model shown on the number line? Choose all correct answers. Answers in image/
Mademuasel [1]

Answer:

i think 9+(-4) and 9-4.

Explanation: i dont really know how to give an explanation. i hope this helps :)

3 0
3 years ago
Read 2 more answers
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