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3 years ago

Which of the following inequalities are true A.10 < 9, B. 9 < 10, C. 10 > 9, D. 9 (is less than or equal to ) 10

Mathematics

1 answer:

Thepotemich [5.8K]3 years ago

5 0

Answer:

B. 9 < 10,

C. 10 > 9,

D. 9 (is less than or equal to ) 10

Step-by-step explanation:

A.10 < 9, not true 10 is greater than 9

B. 9 < 10, true 9 is less than 10

C. 10 > 9, true 10 is greater than 9

D. 9 (is less than or equal to ) 10 true 9 is less than or equal to 10

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victus00 [196]

Answer:

$2.35

Step-by-step explanation:

Nickels are worth 5 cents each and quarters are worth 25 cents.

7 nickels = 7 * 5 cents = 35 cents

8 quarters = 8 * 25 cents = 200 cents

Total = 200 + 35 = 235 cents

There are 100 cents per dollar, so we can find the dollar value by:

235/100 = $2.35

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Answer:

Step-by-step explanation:

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3 years ago

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3 years ago

Ashley mixes two types of soft drinks with different types of concentration: one soft drink has 20% sugar and the other drink ha

ICE Princess25 [194]

Answer:

Sugar concentration of the mixed soft drink will be 32.5%.

Step-by-step explanation:

Sugar concentration of first drink = 20%

Volume of first soda = 250 ml

Sugar in first soda = 20% of 250 ...... (1)

Sugar concentration of second drink = 45%

Volume of second soda = 250 ml

Sugar in second soda = 45% of 250 ...... (2)

Let $x\%$ be the sugar concentration in resultant mixture.

Volume of mixture = 250 + 250 = 500 ml

Sugar in mixture = $x\%$ of 500 ml ...... (3)

Total sugar concentration (Adding (1) and (2)) and equating it to equation (3):

20% of 250 + 45% of 250 = $x\%$ of 500

$\Rightarrow \dfrac{20}{100} \times 250 + \dfrac{45}{100} \times 250 = \dfrac{x}{100} \times 500\\\Rightarrow 2 \times x = 65\\\Rightarrow x = 32.5\%$

Hence, Sugar concentration of the mixed soft drink will be 32.5%.

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3 years ago