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Inessa05 [86]
3 years ago
14

HELP IM GONNA FAIL!!

Mathematics
2 answers:
Vikentia [17]3 years ago
3 0

Answer:

C) x+y=8

Step-by-step explanation:

I enter (3,5) into 2x+y=11

2*(3) + 5 = 11

11=11 correct

You now you need to enter the (3,5) into all the equations and see if they are correct

A: x + 2y = 15

3+ 2*5=15

13 = 15 is not correct

B. X+ y = 15

3+5= 15

8=15 not correct

C.x + y=8

3+5=8

8=8 correct

D. X-y = 2

3-5=2

-2= 2 not correct

ruslelena [56]3 years ago
3 0

Answer:

The answer is C

Step-by-step explanation:

I know this because I took the test, I also responded so you can mark the other person brainliest

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Find the smallest number by which the following numbers should be multiplied to obtain a perfect cube. (a) 3087 (b) 2560
Daniel [21]

Check each number's prime factorization, then add any factors necessary to make each one a cube.

(a) 3

3087 = 3^2 \times 7^3 \implies \boxed{3}\times3087 = (3\times7)^3 \implies 9261=21^3

(b) 25

2560 = 2^9\times5^1 \implies \boxed{5^2}\times2560 = \left(2^3\times5\right)^3 \implies 64000 = 40^3

3 0
2 years ago
Solve for s.<br><br> 86 = <br> s<br> 8<br> + 76
Lady bird [3.3K]

Answer:

s = 5/4

Step-by-step explanation:

Solve for s:

86 = 8 s + 76

86 = 8 s + 76 is equivalent to 8 s + 76 = 86:

8 s + 76 = 86

Subtract 76 from both sides:

8 s + (76 - 76) = 86 - 76

76 - 76 = 0:

8 s = 86 - 76

86 - 76 = 10:

8 s = 10

Divide both sides of 8 s = 10 by 8:

(8 s)/8 = 10/8

8/8 = 1:

s = 10/8

The gcd of 10 and 8 is 2, so 10/8 = (2×5)/(2×4) = 2/2×5/4 = 5/4:

Answer:  s = 5/4

6 0
3 years ago
Read 2 more answers
What is an equation of the line that passes through the points (-6, -2) and
Vesnalui [34]

Answer:

idek man

Step-by-step explanation:

6 0
4 years ago
A survey of students in the junior class at Avery's high school provided the following information:
Oduvanchick [21]

Avery can explain to her school principal that 85% of juniors think there is a lot of homework because several indicators have increased.

<h3>What is an indicator?</h3>

An indicator is a datum that is taken as a reference to analyze the evolution or change of a fact over time. In this case, the indicators would be:

  • Weekly hours used to do homework
  • Number of students with work for after school.

According to the information, it can be inferred that 85% of Junior students consider that there is an increase in homework because there were the following changes compared to last year:

  • Increase in hours spent on after school homework, last year the average was 5 hours, this year it is 8 hours.
  • Increase in the number of students with after school jobs, last year it was 135 students, this year it is 215 students.

From the foregoing, it can be inferred that the number of homework has increased in Junior students and that is why now 85% of them consider that homework has increased.

Learn more about indicator in: brainly.com/question/20264817

#SPJ1

5 0
2 years ago
brayden is blocking off several rooms in a hotel for guests coming to his weeding the hotsl can reserve small rooms that can roo
kodGreya [7K]

Answer:

76; 20

Step-by-step explanation:

s = small room = 2

l = large room = 4

14s + 12l = 28 + 48 = 76

as I said before s = 2 and l = 4

s*s + l*l = 2*2 + 4*4 = 4 + 16 = 20

6 0
3 years ago
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