Help please and thanks

Mathematics

1 answer:

charle [14.2K]2 years ago

5 0

Answer:

The system has one solution that is substituting method

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The sum of two numbers is 19 . When the second number is subtracted from the first number, the difference is 17 . Find the two

zhenek [66]

Answer:

19 and 2

Step-by-step explanation:

Let x represent the first number and y represents second number

x + y = 19

x - y = 17 add two equations up

2x = 36 divide both sides by 2

x = 19 and since the difference is 17 the other number is 2

4 0

3 years ago

Choose the expression that would equal the number of hours in the following question. If a car averages 50 1/3 miles per hour, h

Reika [66]

50 (1/3) mph
47 (1/2) = 47.5 mph

47.5 / 50 (1/3) = 0.943708609271523 hours

times 60 =
 56.6225165563 minutes =

56 minutes 37.3509933775 seconds

6 0

3 years ago

Read 2 more answers

Please help me 10 points will give crown

Lubov Fominskaja [6]

A,d,b, and then c ,basically least to greatest

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3 years ago

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Review the bar graph below:

Scrat [10]

Answer:

B. 12.5%

Step-by-step explanation:

Add all the hours together to get 20. We make the assumption that 20 is 100% since it is our output value. We next represent the value we seek with x. From step 1, it follows that 100%=20. In the same vein, x%=2.5.This gives us a pair of simple equations:

100%=20(1)

x%=2.5(2)

By simply dividing equation 1 by equation 2 and taking note of the fact that both the LHS (left hand side) of both equations have the same unit (%); we have

$\frac{100}{x}$ = $\frac{20}{2.5}$