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worty [1.4K]
3 years ago
6

LOROWANIE Solve the system using elimination. 3x + 10y = -4 2x + 2y = 2 ([?], [ ]​

Mathematics
1 answer:
LUCKY_DIMON [66]3 years ago
6 0

Answer:

x+y=10

x+y=10-3

x+y=7

xy²=7

answer 7

hope that helps

Step-by-step explanation:

Brainliest?

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please guys help me please
MariettaO [177]

Answer:

C

Step-by-step explanation:

6 0
2 years ago
Please help me out! I keep getting the wrong answer
Tamiku [17]

The total amount of people who ordered a large is 5 + 12 + 8 = 25 people.

The amount of customers who bought a large cold drink is 5.

The probability that someone bought a large cold drink is 5 out of 25 people.

This is 5/25 which is 1/5 which is .2

Convert the decimal to a fraction by multiplying by 100 and adding a percent sign at the end.

.2 x 100 = 20%

Edit:

The probability was supposed to be if the customer ordered a cold drink based on people who ordered large.

The amount of people who ordered a large drink is 22 + 5 = 27.

The amount of people who ordered a cold large is 5.

To find the percent, divide the people who ordered cold large by the total people who ordered large.

This would be 5/27 which in decimal form is .185185

To convert to a percent, multiply by 100 and add a percent sign after it.

.185185 x 100 = 18.5185%

The question says to round to the nearest percent so your answer is:

19%

6 0
3 years ago
What is not perpendicular to 7x +2y= 3
vfiekz [6]

Every line that does not have the slope of 2/7 is perpendicular to this line.

In order to find this fact, we first must find what is perpendicular. To do that, we first have to find the slope of this line. We can do this by solving for y.

7x + 2y = 3

2y = -7x + 3

y = -7/2x + 3/2

Now we can take the slope of -7/2 and flip and negate it. This will give us the perpendicular slope (2/7). Now we know any line that does not have this slope is not perpendicular to this line.

6 0
2 years ago
If a line of one billion people stretched 327,495 miles long, the average shoulder width of the people in the line is A feet. Ro
Ganezh [65]

Answer:

  1.7 ft

Step-by-step explanation:

We presume you want to find A. And we presume the people are standing shoulder-to-shoulder.

  (327,495 mi)/(10^9 persons) = (3.27495×10^5 mi)/(10^9 persons) × (5280 ft/mi)

  = 1.7291736×10^9 ft/(10^9 persons)

  = 1.7292736 ft/person

  ≈ 1.7 ft/person

3 0
3 years ago
How do i Simplify: b^8 b^4
11Alexandr11 [23.1K]
It  looks like they're multiplied, then you can simply add the exponents,

b⁸ * b⁴ = b⁸⁺⁴ = b¹²

remember, b⁸=b*b*b*b*b*b*b*b and b⁴=b*b*b*b

so b⁸ * b⁴ = b*b*b*b*b*b*b*b * b*b*b*b = b¹²
7 0
3 years ago
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