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Amanda [17]
3 years ago
11

Ill give brainliest if you help me + 20 points :)

Mathematics
2 answers:
stellarik [79]3 years ago
5 0

Answer:

1. 7.25/4=1.8125 so 1.8125x12=21.75

2. 0.49+(0.22x4)=1.37

3. rule is x+2=y so x=8 then y=10

4.rule is 3(x)=y so x=5 then y=15

lbvjy [14]3 years ago
4 0

Answers:

21.75

1.37

10

15

Step-by-step:

Dozen flyers:price

4:7.25

12:x

To solve this mulitply 7.25 by 3 (because this is what we multiplied 4 by to get 12) 7.25*3=21.75

Question 2:

We can write teh following equation

.49+.22(x-1)=price

This is essentially saying that we pay .49 for the first ounce and .22 for every ounce after that

We can plug in an x value to get

.49+.22(5-1)

.49+.22(4)

.49+.88

1.37

Question 3:

We can write the following equation

x+2=y

We need to find out what happens when x=8

8+2=10

Question 4:

We can solve this with ratios

x:y

1.5:4.5

5:x

To solve just multiply 4.5 by 10/3 and get 15

We can just multiply

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A hiking trail is 20 kilometers long. Park organizers want to build 5 rest stops for hikers with one on each end of the trail an
ValentinkaMS [17]

Answer:

There will be 5 kilometers between each rest stop

Step-by-step explanation:

Ok, so there are two rest stops at the start and end of the trail. This means that the sum of the distances of the rest stops must equal 20 kilometers.

If you can imagine a number line being split by 3 lines, it makes four segments.

We can't solve this using 3D = 20 because that would mean one of the three rest stops is at the end of the hike

So,

4D = 20\\D = 5\\

3 0
3 years ago
An mp3 player is on sale for 30% off the regular price of $39. 98. How much is the discount? a. $11. 99 b. $13. 19 c. $13. 33 d.
Andrej [43]

The cost of the mp3 player after the discount is $27.98.

<h3>What is percentage?</h3>

A percentage is a number or ratio that can be expressed as a fraction of 100. If we have to calculate percent of a number, divide the number by whole and multiply by 100.

Given

An mp3 player is on sale for 30% off the regular price of $39. 98.

The price of the mp3 player after the 30% is given

\rm Cost \ of \ player \ after \ discount = Cost \ of \ player \times discount\\\\\rm Cost \ of \ player \ after \ discount = 39.98\times 0.30\\\\\rm Cost \ of \ player \ after \ discount = 11.99

The cost of mp3 player after 30% discount is;

= $39.98 - $11.99 = $27.98

Hence, the cost of the mp3 player after the discount is $27.98.

To know more about percentage click the link givem below.

brainly.com/question/9776399

6 0
2 years ago
Liliana bought a helmet for $19.67. How much change should Liliana receive if she pays the cashier with a twenty dollar bill?
BartSMP [9]

Answer:

20 - 19.67 =  .33

Step-by-step explanation:

33 cents

8 0
3 years ago
Read 2 more answers
Emily's parents put $1,500 in her bank account for college tuition. At an interest rate of 8.25% compounded semi-annually, what
s2008m [1.1K]

Answer:

Step-by-step explanation:

4 0
3 years ago
João comprou uma TV por R$ 2 400,00; um celular por R$ 1 325,00 e um tênis por R$ 130,00, qual o valor total da compra?
charle [14.2K]

Answer:

R $ 3855

Step-by-step explanation:

João comprou uma TV por R $ 2400,00; um celular por R $ 1350,00 e um tênis por R $ 130,00 qual o valor total da compra?

O preço total de compra é calculado como:

Custo da TV + Custo do Celular + Custo do Tênis

R $ 2400,00 + R $ 1350,00 + R $ 130,00,

= R $ 3855

3 0
3 years ago
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