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Aleksandr [31]
2 years ago
8

PLEASE HELP I NEED TO FINISH THIS IN 5 MINUTESSSS!!!!!!!

Mathematics
2 answers:
Orlov [11]2 years ago
8 0
I think for 3x + y = 11 is 3*3 + 2 and for -8x +y= 11 is -8*-1+3 so maybe the answer is C. 2 solutions
NeTakaya2 years ago
5 0

Answer:

1 solution

Step-by-step explanation:

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A geometry fact that I find helpful. (Brainly, please don't take this down it is very educational)
sergeinik [125]

Answer:

Thank you so much for this

Step-by-step explanation:

Have a nice day ! :)

5 0
2 years ago
Read 2 more answers
△ABC∼△DEF , △ABC has a height of 14 centimeters, and △DEF has a height of 6 centimeters. What is the ratio of the area of △ABC t
Kamila [148]
Since triangle ABC is similar to triangle DEF then the ratio of the corresponding sides is constant.
The ratio of the corresponding lengths is referred to as the linear scale factor.
Considering the heights of the two triangles;
L.S.F = 14/6
          = 7/3
The ratio in area (A.S.F) is given by (L.S.F)²
Therefore, A.S.F = (7/3)² = 49/9
Thus te ratio of the area of triangle ABC to DEF is 49:9
8 0
3 years ago
Read 2 more answers
Tickets to a local circus cost $5 for students and $8 for adults. A group of 9 people spent a total of $60. How many adults were
S_A_V [24]

Answer:

5

Step-by-step explanation:

You need to set up and solve a system of linear equations here.

Let s and a represent the number of students and adults respectively.

Then s + a = 9, and s = 9 - a.

Total ticket cost for the adults was ($8/adult)(a)

and for the students ($5/student)(s).

Total cost of the tickets was then  ($8/adult)(a) + ($5/student)(s) = $60.

Then our system of linear equations is:

8a + 5s = 60

 a  +  s  = 9, or s = 9 - a.  Substituting 9 - a for s, we get:

8a + 5(9 - a) = 60.

Then 8a + 45 - 5a = 60, or 3a = 15.

Solving for a, we get a = 5.

Solving for s using s = 9 - a, we get   s = 9 - 5, or s = 4.

There were 5 adults in the group (and 4 students).

3 0
3 years ago
A truck driver has a route that takes him 125 miles each way each day that he works. If he makes 15 roundtrips on this route per
7nadin3 [17]

Answer: 3,750 miles

Step-by-step explanation:

Route takes him 125 miles each way so in a day he travels:

= 125 + 125

= 250 miles

He made 15 roundtrips so total miles is:

= 15 * 250

= 3,750 miles

3 0
2 years ago
Solve for x: 5x + 2 = 4x - 9.
AlekseyPX

Answer:

Step-by-step explanation:

5x + 2 = 4x - 9

Collecting like terms

5x - 4x = -9 - 2

x = -11

4 0
2 years ago
Read 2 more answers
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