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3 years ago

| A 5-minute international call costs $2.15 and a 12-minute

Mathematics

2 answers:

Zepler [3.9K]3 years ago

6 0

Answer:

In step 2, she substituted the x values for y and the y values for x.

Step-by-step explanation:

just did it

Pavlova-9 [17]3 years ago

5 0

Answer:

step two is wrong

Step-by-step explanation:

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alekssr [168]

Answer:

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Step-by-step explanation:

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2 years ago

Tom always keeps his 4 gardens clean. He takes 20 minutes to clean a single garden. How much time will it take to clean all four

Nataly [62]

If each garden takes 20 minutes to clean, it will take him (20 x 4) to clean the gardens.

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2 years ago

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If the measure of angle ACB is 50 degrees, what is the measure of angle AOB

kodGreya [7K]

The answer is 100 degree

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2 years ago

maksim [4K]

Answer:

$\boxed {\boxed {\sf 250 \ people}}$

Step-by-step explanation:

Let's set up a proportion using the following setup.

$\frac {buses}{people}=\frac {buses}{people}$

We know 30 buses can carry 1,500 people.

$\frac {30 \ buses}{1500 \ people}=\frac {buses}{people}$

We don't know how many people 5 buses can carry, so we say 5 buses carry x people.

$\frac {30 \ buses}{1500 \ people}=\frac {5 \ buses}{x \ people}$

$\frac {30 }{1500 }=\frac {5 }{x }$

Cross multiply. Multiply the numerator of the first fraction by the second fraction's denominator. Then, multiply the first denominator by the second numerator.

$30*x=1500*5\\30x=7500$

Solve for x. It is being multiplied by 30. The inverse of multiplication is division. Divide both sides by 30.

$30x/30=7500\\x=250$

5 buses can carry 250 people.

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3 years ago