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8090 [49]
3 years ago
15

What is the value of x in the solution to the system of linear equations?

Mathematics
2 answers:
blagie [28]3 years ago
8 0
It's -2 i have calculated it and that's what i got, if i'm wrong i'm sorry

AlexFokin [52]3 years ago
7 0

Answer:

The answer is: D) -3

Step-by-step explanation:

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The enrollment at Temple Junior High School has a change of ─ 60 over a 3 year period. What is the average change per year?
GaryK [48]

Answer:

- 20

Step-by-step explanation:

Total Change in enrollment = - 60

Period of time at which change occurred = 3 years

Average change per year :

Total change in enrollment / period at which change occurred

= - 60 / 3

= - 20

Average change of - 20 enrollments per year

4 0
3 years ago
Find the volume of the pyramid. Round your answer to the nearest tenth.
algol13

Answer:

from my opinion second option is right

8 0
3 years ago
Clara goes miniature golfing. She pays $7.50 for an admission ticket and $6.25 for each round she golfs. The total amount Clara
Nitella [24]

Answer:

26.25-7.50 = 18.75

18.75/6.25= 3

She golfed for 3 rounds

Step-by-step explanation:

5 0
3 years ago
PLEASE HELP :'))
andreev551 [17]

Answer:

D) 54 cm

Step-by-step explanation:

We can use the Centroid Theorem to solve this problem, which states that the centroid of a triangle is \frac{2}{3} of the distance from each of the triangle's vertices to the midpoint of the opposite side.

Therefore, R is \frac{2}{3} of the distance from U to V, since the latter is the midpoint of the side opposite to U. We know this because R belongs to UV, so R must be QS's midpoint due to the fact that by definition, the centroid of a triangle is the intersection of a triangle's three medians (segments which connect a vertex of a triangle to the midpoint of the side opposite to it).

We can then write the following equation:

VR=\frac{1}{3} UV

Substituting VR = 18 into the equation gives us:

18=\frac{1}{3} UV

Solving for UV, we get:

18=\frac{1}{3} UV

3 *18=3*\frac{1}{3}UV (Multiply both sides of the equation by 3 to get rid of UV's coefficient)

54=UV (Simplify)

UV=54 (Symmetric Property of Equality)

Therefore, the answer is D. Hope this helps!

7 0
3 years ago
When I triple my number and add five i get 26. what is my number?
pentagon [3]
x- number\\\\
triple\ number:\ \ 3x\\\\
3x+5=26\ \ |-5\\\\
3x=26-5\\\\
3x=21\ \ |:3\\\\ x=7\\\\Number\ is\ equal\ to\ 7.
8 0
3 years ago
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