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Lubov Fominskaja [6]
3 years ago
9

Problem

Mathematics
1 answer:
Stolb23 [73]3 years ago
7 0

Answer:

78

Step-by-step explanation:

You might be interested in
The sum of four times a number and five times another number is -28. The sum of nine times the first number and two times the se
dedylja [7]

Answer:

  -8

Step-by-step explanation:

If we let x and y represent the first and second numbers, respectively, we can write the problem statement as the equations ...

  • 4x +5y = -28
  • 9x +2y = 11

We can multiply the first equation by -9 and add 4 times the second equation to get an equation in y alone:

  -9(4x +5y) +4(9x +2y) = -9(-28) +4(11)

  -37y = 296 . . . . . simplify

  296/-37 = y = -8 . . . . . divide by the coefficient of y

The second number is -8.

7 0
4 years ago
Answerrrrr please to this
e-lub [12.9K]

Answer:

the first one

Step-by-step explanation:

6 0
3 years ago
Stacey scored 8 out of 12 on her lastest math test. what percentage did Stacy score on her test?
skelet666 [1.2K]
8/12 is .67, when rounded. In order to find her percentage, multiply .67 by 100 to get it. She got 66.7%, when rounded, on the test.
5 0
3 years ago
Dylan and Spencer went looking for Dylan's lost dog. Dylan traveled 100 meters to the neighbor’s house, 1.5 kilometers to the pe
pickupchik [31]
So Dylan traveled a total of 
100 meters (to the neighbors house)
plus 1.5 kilometers which a kilometer means thousand meters so its really 1500 meters
plus 310 meters

For Dylans distance we can do 100 + 1500 + 310 = 1910
Specers distance is given which is 1269

To find the final answer we can do Dylans distance minus Spencers so 1910 - 1269 which equals 641.

The correct answer would be that Dylan traveled 641 meters farther than Spencer

Answer: 641 

Hope this helps!
4 0
3 years ago
Read 2 more answers
Evaluate 15 + |-3| - 4
Zina [86]

Those lines on both sides of the number means "absolute value." Those lines tell us that the number is positive no matter what. So:

15 + |-3| - 4 → 15 + 3 - 4

Remember to follow PEMDAS when solving.

(15 + 3) - 4

18 - 4

14

Therefore, the answer is 14.

Best of Luck!

6 0
3 years ago
Read 2 more answers
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