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weeeeeb [17]
3 years ago
5

Does anyone have a brief explanation on how to solve proportions?

Mathematics
2 answers:
denpristay [2]3 years ago
4 0

1) cross-multiplication: \frac{x}{y} = \frac{a}{b} -> xb = ay

2) common denominator: x/y = a/b -> xb/yb = ya/yb

Cross multiplication is the easiest.

agasfer [191]3 years ago
3 0

Answer:

cross mulitply and then divide

Step-by-step explanation:

In your proportion you will have 3 of the 4 numbers such as 3/7=9/x.  Mulitply the nubers that are diagonal (cross) from each other.  Here it is the 7 and 9 so 7x9 = 63.  Then you will divide that answer by the number that you haven't used yet, here that is the 3.   So 63/3=21.  x=21.  Works all the time.

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Amee received an end of year bonus of $1550 at work and went on a shopping spree. She spent $225 at the department store, $275 a
atroni [7]

Answer: She has $1022 left.

Step-by-step explanation:

The total amount that Amee received an the end of year as bonus at work is $1550.

She went on a shopping spree, spending $225 at the department store, $275 at the home furnishing store, and $28 at the card shop. Therefore, the total amount that she spent at the department store, the home furnishing store, and the card shop is

225 + 275 + 28 = $528

Therefore, the total amount of her bonus that she has left is

1550 - 528 = $1022

6 0
4 years ago
Write the decimal that the point on the number line shows;
klio [65]

Answer:

That would be 37/100 on the number line, meaning that the deximal would be 0.37

8 0
3 years ago
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Does 3 Quarters 3 nickels and 1 dime make $1.00
lidiya [134]

Answer:

91 cents

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3 years ago
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Convert the following common fractions to decimals. Round to three decimal places if necessary. You may use a calculator. 1/2 =
sineoko [7]

Answer:

1/2 = 0.5

Step-by-step explanation:

The given fraction is:

1/2

By simple calculation, we can convert the fraction into decimal

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As the decimal form has only one digit after the point so there is no need to round off.

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3 0
3 years ago
Miguel deposits 680.00 in an account that pays 3.5% simple interest. if he neither adds more money nor withdraws any money, what
quester [9]
I=PRT
I=interst
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R=rate in decimal
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given
P=680
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after 6 years, $822.80 is in the account
4 0
3 years ago
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