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mojhsa [17]
3 years ago
12

How do you solve a ratio problem?

Mathematics
2 answers:
xxTIMURxx [149]3 years ago
8 0
Set out the two numbers 3:6
Mulitply by ratio amount
Zielflug [23.3K]3 years ago
6 0

Answer:

Let's talk about ratios and proportions. When we talk about the speed of a car or an airplane we measure it in miles per hour. This is called a rate and is a type of ratio. A ratio is a way to compare two quantities by using division as in miles per hour where we compare miles and hours.

A ratio can be written in three different ways and all are read as "the ratio of x to y"

xtoy

x:y

xy

A proportion on the other hand is an equation that says that two ratios are equivalent. For instance if one package of cookie mix results in 20 cookies than that would be the same as to say that two packages will result in 40 cookies.

201=402

A proportion is read as "x is to y as z is to w"

xy=zwwherey,w≠0

If one number in a proportion is unknown you can find that number by solving the proportion.

Step-by-step explanation:

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In a recent survey of 1,700 Game Stop customers 884 of them responed that they play video games on their
kodGreya [7K]

Answer:

52% play video games on their personal computer.

Step-by-step explanation:

884/1700 = 52%

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3 years ago
I need help with this question:
SpyIntel [72]

Answer:

2,406.16452 cm

Step-by-step explanation:

(1/3)*(17.2*17.2)*24.4

98.61333*24.4

2,406.16452cm

7 0
3 years ago
90.5 rounded to the nearest one
sladkih [1.3K]

Answer:

91

Step-by-step explanation:

90.5 needs to be a whole number, and if it ends in 5 you round it up

5 0
2 years ago
Read 2 more answers
Three-fifths of the spanish club is girls. there are a total of 30 girls in the spanish club
crimeas [40]

Answer: whats the question here if you wanna know how many boys there are there should be 12

Step-by-step explanation:

7 0
3 years ago
What is the measure of arc BC?<br> 130<br> 65<br> 32.5<br> 180
ale4655 [162]

Answer:

The measure of arc BC is 130° ⇒ 1st answer

Step-by-step explanation:

In a circle:

  • The measure of an arc is equal to the measure of the central angle subtended by it
  • The measure of an arc is equal to double the measure of the inscribed angle subtended by it
  • Central angles subtended by the same arc are equal in measures
  • Inscribed angles subtended by the same arc are equal in measures
  • The measure of central angle is double the measure of the inscribed angle which subtended by its arc

∵ Angle BDC is an inscribed angle

∵ It is subtended by the arc BC

- By using the 2nd fact above

∴ The measure of arc BC = 2 × the measure of ∠BDC

∵ The measure of angle BDC is 65 degree

∴ The measure of arc BC = 2 × 65°

∴ The measure of arc BC = 130°

The measure of arc BC is 130°

7 0
3 years ago
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