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Alex777 [14]
3 years ago
7

2. Describe two methods to determine whether ratios form a proportion.

Mathematics
1 answer:
Phantasy [73]3 years ago
6 0

Answer:

1. Write both ratios as fractions and reduce them completely. If they are the same fraction, the ratios form a proportion.

2. Write both ratios as fractions. Do the cross products by multiplying the denominator of each fraction by the numerator of the other fraction. If the cross products are equal, the ratios form a proportion.

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erica [24]

X + 3 = 9-4

First simplify the right side.

9-4 = 5

Now you have x + 3 = 5

Now subtract 3 from both sides:

X = 2

Answer: x = 2

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0.04 × 0.61 =<br>Tell me how to work this out
Sphinxa [80]
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Answer:

1.5 miles

Step-by-step explanation:

According to the scale, we can simply multiply the distance that Sonja measured on the map by the actual mile distance that it states on the scale (1/2 or 0.5) to calculate the actual distance between Sonja's house and Sal's house like so...

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3 0
2 years ago
John earns $25 per hour as a part-time firefighter. If John works 30 hours per week, how much does he earn that week?
Tanzania [10]

Answer: $750

Step-by-step explanation:

So we know that he earns $25 per hour, and we want to know how much he earns if he worked for 30 hours which is a week.

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then we can cross multiply which is

\frac{25(30)}{1}=750

so the answer is John earns $750 a week.

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2 years ago
All of the students in sixth grade either purchased their lunch or brought their lunch from home on Monday.
Nat2105 [25]

Answer:

250

Step-by-step explanation:

1. 190 students is the number that is 100-24 = 76% of the 6th grade population

0.76x = 190

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3 years ago
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