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maxonik [38]
3 years ago
13

I have a bag with yellow and blue marbles in it. At the moment, the ratio of blue marbles to yellow marbles is 4:3. If I add 5 b

lue marbles and remove 3 yellow marbles, the ratio will be 7:3. How many blue marbles were in the bag before I added more?
Mathematics
1 answer:
katen-ka-za [31]3 years ago
4 0

Answer:

4:7  7 being to total number of marbles (part to whole ratio)

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The prices for a loaf of bread and a gallon of milk for two supermarkets are shown below. Sue needs to buy bread and milk for he
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Answer:

B. 3.19b + 4.59m = 137.24

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Step-by-step explanation:

A B

Bread $3.19 $3.49

Milk $4.59 $4.39

Sue paid $137.24 in supermarket A

Sue paid $140.04 in supermarket B

Let

Price of bread A=$3.19

Price of bread B=$3.49

Price of milk A=$4.59

Price of milk B=$4.39

Quantity of Bread=b

Quantity of Milk=m

Pb=price of bread

Pm=price of milk

Qb=Quantity of bread

Qm=Quantity of milk

For each supermarket

Supermarket A Equation

PbQb + PmQm =$137.24

3.19b+ 4.59m = 137.24

Supermarket B Equation

PbQb + PmQm=$140.04

3.49b + 4.39m = $140.04

Combining both equations

3.19b + 4.59m = 137.24

3.49b + 4.39m = $140.04

5 0
3 years ago
You are considering selling your home. You consult with an agent who gives you the asking prices of five homes (comps) in your a
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Answer:

<h3> $169,500</h3>

Step-by-step explanation:

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Mean = sum of the amounts/sample size

Sum of the amounts = $165,000 + $188,000 + $175,000+$150,000

Sum of amounts = $678,000

Sample size = 4 (excluding the outlier)

Mean = $678,000/4

Mean = $169,500

Hence the mean of the four remaining comps is $169,500

8 0
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Answer:

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Step-by-step explanation:

3 0
3 years ago
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Shkiper50 [21]
I am not to sure but I think that it is 111.804 inches^3 I hope I am right if not I am really sorry.
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Because of heavy traffic, a bus took 30 minutes to cover a distance of 20 city blocks. How many minutes per city block did the b
aev [14]

a bus took 30 minutes-------------------------- to cover a distance of 20 city blocks<span>

   X minutes------------------------------------------------one (1) city block</span>

 I apply a rule of three

<span> X=(1)*(30)/20=1.5  </span>

 Therefore

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<span> </span>

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