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Basile [38]
3 years ago
5

1.) The Difference between seven times one number and three times a second number is 25. The sum of twice the first and five tim

es the second is 95. Find the Numbers.
2.) The sum of two numbers is 15. Twice one number equals 3 times the other. Find the numbers.


PLEASE HELP ASAP!!

Mathematics
1 answer:
suter [353]3 years ago
3 0

Hola User____________

Here is Your answer..!!

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PLEASE HELP I GIVE 100 POINTS!!
balandron [24]

9514 1404 393

Answer:

  1.  b. The common difference is 0.39

  2.  no good answer (Zach's method is exponential; Victoria's is linear)

Step-by-step explanation:

1. The differences in mileage are ...

  24.39 -24 = 0.39

  24.78 -24.39 = 0.39

  25.17 -24.78 = 0.39

The common difference is 0.39.

____

2. Zach's monthly times are ...

  10, 20, 40, 80

The differences are ...

  10, 20, 40

The ratios are ...

  20/10 = 40/20 = 80/40 = 2

Zach's times have a common ratio, so are exponential.

__

Victoria's monthly times are ...

  35, 50, 65, 80

The differences are ...

  15, 15, 15

Victoria's times have a common difference, so are linear.

__

The choices are ...

  a. both exponential; common factor . . . . correct for Zach; not for Victoria

  b. Zach's is linear (has equal factor) . . . incorrect

  c. both exponential; common difference . . . incorrect

  d. Victoria's is linear . . . . correct for Victoria

Choice D describes Victoria's method. Choice A is correct regarding Zach's method, but incorrect regarding Victoria's.

Choices B and C are not self-consistent, so are incorrect on their face.

There is no good choice.

4 0
3 years ago
Read 2 more answers
Y-8=3/5(x-5) <br> write this equation in slope-intercept form
cupoosta [38]

Answer:

\displaystyle y = \frac{3}{5}x + 5

Step-by-step explanation:

y - 8 = ⅗(x - 5)

y - 8 = ⅗x - 3

+ 8 + 8

__________

\displaystyle y = \frac{3}{5}x + 5

I am joyous to assist you anytime.

4 0
4 years ago
Find the P coordinates​
bagirrra123 [75]
The picture isn't clear
5 0
3 years ago
Solve by elimination <br> -5x+8y=-27<br> -8x+7y=-20
Anika [276]

Answer:

x = -1 , y = -4

Step-by-step explanation by elimination:

Solve the following system:

{8 y - 5 x = -27 | (equation 1)

7 y - 8 x = -20 | (equation 2)

Swap equation 1 with equation 2:

{-(8 x) + 7 y = -20 | (equation 1)

-(5 x) + 8 y = -27 | (equation 2)

Subtract 5/8 × (equation 1) from equation 2:

{-(8 x) + 7 y = -20 | (equation 1)

0 x+(29 y)/8 = (-29)/2 | (equation 2)

Multiply equation 2 by 8/29:

{-(8 x) + 7 y = -20 | (equation 1)

0 x+y = -4 | (equation 2)

Subtract 7 × (equation 2) from equation 1:

{-(8 x)+0 y = 8 | (equation 1)

0 x+y = -4 | (equation 2)

Divide equation 1 by -8:

{x+0 y = -1 | (equation 1)

0 x+y = -4 | (equation 2)

Collect results:

Answer:  {x = -1 , y = -4

7 0
3 years ago
A sports shop has 60 employees. 20% of the employees work part-time. How many part-time employees does the sports shop have?
torisob [31]

Answer:

12

Step-by-step explanation:

60÷100=0.6 0.6x20=12

Therefore the sports shop has 12 part-time employees

8 0
3 years ago
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