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3 years ago

Question 1

Mathematics

1 answer:

diamong [38]3 years ago

5 0

Answer:

The ratio of the number of gigabytes to the price in dollars for Dial It Up is 1:8

The ratio of the number of gigabytes to the price in dollars for Ring Ring is 1:9

Step-by-step explanation:

The word problem relates to the comparison between the cost of a gigabyte on Dial It Up network and the cost per gigabyte on Ring Ring network

On Dial It Up, 2 gigabytes costs $16

Therefore, 1 gigabytes costs $16/2 = $8

Which gives Dial It Up cost per gigabyte as $8 per gigabyte

On Ring Ring, 1 gigabytes costs $9

Which gives Ring Ring cost per gigabyte as $9 per gigabyte

The ratio of the number of gigabytes to the price in dollars for Dial It Up is 1:8

The ratio of the number of gigabytes to the price in dollars for Ring Ring is 1:9.

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miv72 [106K]

Answer:

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Step-by-step explanation:

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3 years ago

Astrid wants to buy pumpkins and watermelons. She wants to buy more than 10 fruits, and she has a

Stolb23 [73]

Answer:

Buying 7 pumpkins and 3 watermelons, Astrid doesn't meet her two expectations.

Step-by-step explanation:

Let

P ----> the number of pumpkins and watermelons she can buy

W ----> the number of watermelons she can buy

we know that

$P+W > 10$ ----> inequality A

$5.5P+3.5W < 117$ ---> inequality B

Note Both inequalities are given in the problem

If Astrid buy 7 pumpkins and 3 watermelons

then

we have the ordered pair (7,3)

Remember that

If a ordered pair is a solution of the system of inequalities, then the ordered pair must satisfy both inequalities

For P=7, W=3

Verify Inequality A

$P+W > 10$

substitute the value of P and the value of W

$7+3 > 10$

$10 > 10$ ----> is not true

The ordered pair not satisfy the inequality A

Verify Inequality B

$5.5P+3.5W < 117$

substitute the value of P and the value of W

$5.5(7)+3.5(3) < 117$

$49 < 117$ ----> is true

The ordered satisfy the inequality B

therefore

Buying 7 pumpkins and 3 watermelons, Astrid doesn't meet her two expectations.

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3 years ago

Evaluate the expression if a = 9 and b = 2. 5(a 3b) 20 51 70 75

devlian [24]

5(a + 3b) = 5(9 + 3(2)) = 5(9 + 6) = 5(15) = 75

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2 years ago

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Answer:

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Step-by-step explanation:

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