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4 years ago

Is 2,12 4,24 6,36 8,48 10,60 proportional

Mathematics

1 answer:

Elena L [17]4 years ago

4 0

Answer:

Yes

Step-by-step explanation:

12 divided by 2 = 6, 24 divided by 4 = 6, 36 divded by 6 = 6, 48 divded by 8 = 6, 60 divided by 10 = 6.

All answers have 6 so yes it is proportional.

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A gallon of milks sells for $3.18 and a quart of milk sells for $0.76. Which item has the better unit price? Justify your answer

nataly862011 [7]

Answer:

$Second\ price\ that\ is\ 1\ quart\ milk=\$0.76\ has\ better\ unit\ price$

Step-by-step explanation:

Use gallon unit:

First Price:

$1\ gallon\ milk=\$3.18\\\\$

Second Price:

$4\ quart=1\ gallon\\\\1\ quart\milk=\$0.76\\\\4\ quart\ milk=4\times 0.76=\$3.04\\\\\Rightarrow 1\ gallon\ milk=\$3.04$

$1\ gallon\ at\ first\ price\ is\ greater\ than\ the\ rate\ of\ 1\ gallon\ at\ second\ price\\\\Hence\ 1\ quart=\$0.76\ has\ the\ better\ unit\ price.$

Second Method: Use Quart Unit:

First Price:

$1\ gallon=4\ quart\\\\1\ gallon\ milk=\$3.18\\\\4\ quart\ milk=\$3.18\\\\1\ quart\ milk=\frac{3.18}{4}=\$0.795$

Second Price:

$1\ quart\ milk=\$0.76$

$Second\ price\ that\ is\ 1\ quart\ milk=\$0.76\ has\ better\ unit\ price$

3 0

3 years ago

Fernando buys milk to make milkshakes for all his friends. He buys 1 quart of milk and one eighth

andrey2020 [161]

Answer:

Fernando buys 6 cups of milk to make milkshakes for all his friends

Step-by-step explanation:

Fernando buys 1 quart of milk and one eighth gallon of milk.

1 quart = 4 cups

1 gallon = 16 cups

So, $\frac{1}{8} gallons = \frac{1}{8} \times 16 = 2 cups$

So, 1 quart of milk and one eighth gallon of milk = 4 cups + 2 cups = 6 cups

So, He buys 1 quart of milk and one eighth gallon of milk i.e. 6 cups

Hence Fernando buys 6 cups of milk to make milkshakes for all his friends

3 0

3 years ago

PLEASE HELP ASAP

lesantik [10]

This is the way you solve it

6 0

3 years ago

What' is 8.2 times 10 to the negative second power in decimal form

patriot [66]

The answer is 8.2 ^2 ......

4 0

3 years ago

Read 2 more answers

Can you please help me with 3 and 4

Otrada [13]

Number 3 is 1:3 but I don't know what 4 is I can't see the whole problem

3 0

3 years ago