PLEASE HELP ASAP, I HAVE 10 MINUTES ;

Mathematics

1 answer:

Ilya [14]3 years ago

7 0

Answer:

Step-by-step explanation:

when 13 bought we find these inequalities

x + 12y < 7 no

2x + 11y < 7.5 no

3x + 10y < 8 no

4x + 9y < 8.5 no

5x + 8y > 9 yes

When 14 bought we find these inequalities

x + 13y < 7.5 no

2x + 12y < 8 no

3x + 11y < 8.5 no

4x + 10y > 9 yes

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Length X Width =
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2/9 x 7 = 44/9
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Step-by-step explanation:

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Step-by-step explanation:

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(d) A car travels at an average speed of 80 km/h. How far does it travel in: (1) 2 hours? (11) 12 minutes?

zepelin [54]

Answer is (1) 160 km in 2 hours and
(2) 16 miles in 12 minutes.

Step by step.
80 km / 1 hour = x km /2 hours
Cross multiply =
x = 160

The second one requires a little more math. Because we are looking at how far in minutes, we change the rate of 80km in 1 hour to 80 km in 60 minutes.
80 km / 60 = x / 12
Cross multiply
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I did the math on a print screen to explain the cross multiply.

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