2 years ago

Determing wheter two ratios form a proportion

1 answer:

5 0

(2 3/8)/(1 1/2) = (19/8)/(3/2) = (19/8)*(2/3) = 19/12

(9 1/2)/6 = (17/2)/6 = 17/12

17/12 ≠ 19/12

The two pairs of numbers are NOT proportional.

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Solve -2x ≤ -4. Graph the solution

horsena [70]

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2 years ago

raj has $10. if he buys 8 pears and 5 mangoes, he will be short of $1.10. if he buys 5 pears and 4 mangoes , he will receive $1.

Paladinen [302]

Answer:

1 pear = $0.45

1 mango = 1.5

Step-by-step explanation:

8 pears + 5 mangoes = $11.10 ➡ 8p + 5m = 11.10

5 pears + 4 mangoes = $8.25 ➡ 5p + 4m = 8.25

multiply first equation by -4 and second one by 5

-4 ×(8p+5m) = 11.10 ➡ -32p - 20m = 44.4

5 ×(5p+4m) = 8.25 ➡ 25p + 20m = 41.25

add both equations up

-32p - 20m + 25p + 20m = 44.4 + 41.25

-7p = 3.15 ➡ p = $0.45

use this value to find the price of mango

5×0.45 + 4×m = 8.25 ➡ 2.25 + 4m = 8.25 ➡ 4m = 6 ➡ m = $1.5

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2 years ago

The triangle shown below has an area of 10 units^2 squared.<br> Find x.

Nonamiya [84]

Answer:

x = 5

Step-by-step explanation:

A = hb/2

10 = 4(x)/2

10 = 2x

x = 5

im not sure if this is right but get back to me if it isn't

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Yanka [14]

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