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4 years ago

Which ordered pairs are solutions to the inequality. 3x+4y greater than or equal to 12

1 answer:

5 0

To find which orders pairs fit into the inequality simply substitute the variables, x & y.
A:3*8+4*(-3)>=12, yep! 12>=12
B: 3*(-5)+4*2>=12, Nope! -7 is not >= 12
C:Yep! 20>=12
D: Yep! 17>=12

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3 years ago

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Step-by-step explanation:

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3 years ago

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4 years ago

Read 2 more answers

Use a ratio box to solve this problem the ratio of new pens was 4 to 7 in all there were 242 new pens how many new pens were in

Leya [2.2K]

Complete Question

Use a ratio box to solve this problem the ratio of new pens to used pens was 4 to 7 in all there were 242 pens, how many new pens were in the box?

Answer:

88 new pens

Step-by-step explanation:

The ratio of new pens : Old pens = 4:7

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The number of new pens is calculated as:

4/11 × 242 pens

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