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tester [92]
2 years ago
11

Need help with systems of equations

Mathematics
1 answer:
OLEGan [10]2 years ago
8 0

Step-by-step explanation:

x + y = 14

this gives us

y = 14 - x

2x = y - 5

we use the first equation in the second

2x = 14 - x - 5 = 9 - x

3x = 9

x = 3

y = 14 - x = 14 - 3 = 11

the smallest number is 3 or 03.

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Please help 10 points
jeka57 [31]

Answer:

61°

Step-by-step explanation:

Alright so the total amount of degrees in a 5-sided shape or pentagon is 540°. Since we have four of the five total angles, we can solve for the last one.

Sum of all the degrees of all five angles = 540°

The variable x is representing our last unknown degree.

90° + 107° + 144° + 138° + x° = 540°

Add up all the known degrees and solve for x.

479° + x° = 540°

Subtract 479 on both sides so that we can isolate x.

479° + x° - 479° = 540° - 479°

x° = 61°

So our final answer is 61°

4 0
4 years ago
If a line has a slope of -4, what is the y-intercept if it also passed through the point (-2, 7)?
slamgirl [31]

Answer:

i dont get it

Step-by-step explanation:

3 0
3 years ago
Which exponential function is represented by the graph?
just olya [345]
We need to see the graph in order to answer the question.
4 0
3 years ago
Read 2 more answers
Is 57 divisible by 4 5 6 9 or 10
Andre45 [30]
Since it is odd, 4, 6 and 10 cannot be divisors.
5 cannot be a divisor since when you count by 5's you get numbers ending in 5 or 0
(5,10,15,20, etc)
9 cannot be a divisor since 9 x 6 = 54 and 9 sx 7 = 63

None of your answers will work with 57.

3 will work even though you did not list it.   5+7 = 12  and 1+2 = 3.  If the sum of the digits = 3, 6 or 9, the number is divisible by 3.
45 is divisible by 3 (4+5=9)
78 is divisible by 3  (7+8=15 and 1+5 = 6)

7 0
3 years ago
Monica is multiplying 8.714 by 1,000. How many places should she move the decimal point? For the most helpful answer, I will giv
WITCHER [35]
The decimal point should move all the way behind '4'. Therefore the answer is 8714.0
8 0
3 years ago
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