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Simora [160]
2 years ago
7

Show whether the values x=4 and y =5 make inequality 7x-3y<19

Mathematics
1 answer:
Valentin [98]2 years ago
7 0

Answer:

The inequality is true.

Step-by-step explanation:

To show that it is true, you simply sub in 4 for x and 5 for y and see if the statement is true or not

7(4)-3(5) < 19

28-15 < 19

13 < 19

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The correct equation is x=3 because there is no (Y) in the rise over run (y/x) meaning the starting point up and down the point on the (X) 
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3 years ago
HELP PLEASE 40 POINTS The graph shows the prices of different numbers of bushels of corn at a store in the current year. The tab
Vesna [10]

Answer:

see below

Step-by-step explanation:

Part A

Since the lines goes through the point (0,0) the graph is proportional. We can find the rate of change by take the price of corn and dividing by the number of bushels

24/3 = 8 dollars/ bushel

Part B

Previous Year Number of Bushels Price of Corn (dollars)

                                                  3 21

                                                 6 42

                                                  9 63

                                                 12 84

We can find the rate of change for the previous year by using the slope formula

m = (y2-y1)/(x2-x1)

m = (84-63)/(12-9)

    =21 / 3  

    = 7

The previous year was 7 dollars per bushel

The increase was 8-7 = 1 dollar per bushel

4 0
2 years ago
Read 2 more answers
You are preparing a trip to Canada at the time of your trip each US dollar is worth C$1.293 in each Canadian dollar is worth 0.7
Alla [95]

Answer:

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Step-by-step explanation:

Multiply the US dollar amount by the exchange rate for CDN/USD:

  150 × 1.293 = 193.95 . . . . Canadian dollars

7 0
3 years ago
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snow_lady [41]

Answer:

A. -\frac{1}{2}

Step-by-step explanation:

Each mark represent 0.1 unit, so if you count from 0 to n you get 0.5 that is exactly the same that -\frac{1}{2} (for convention the left of the 0 is taken as negative and the right as positive).

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2 years ago
100 POINTS!!!!!!!
Fed [463]

Answer:

a,b,c

Step-by-step explanation:

divide first

5 0
2 years ago
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