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liq [111]
3 years ago
9

If five notebooks cost $5.25 , how much would three notebooks cost?

Mathematics
1 answer:
weqwewe [10]3 years ago
3 0
Set it up as a ratio.  $5.25/5 = $1.05 per notebook

Then solve your equation by multiplying the cost by 3.  3 * $1.05 = $3.15
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Solve each equation 3x+2(5x-3)=7
Sloan [31]

Answer:

1

Step-by-step explanation:

Step 1:

3x + 2 ( 5x - 3 ) = 7

Step 2:

3x + 10x - 6 = 7

Step 3:

13x - 6 = 7

Step 4:

13x = 13

Answer:

x = 1

Hope This Helps :)

7 0
3 years ago
PLS HELP 15 POINTS. Divide 400 by the frequencies for numbers 1-6. This will give you the relative frequency for each number.
skelet666 [1.2K]

Answer:

i dont know what you mean by this but 400 divided by the numbers 1,2,3,4,5,6 ,okay

Step-by-step explanation:

400÷1=400

400÷2=200

400÷3=133.333333333

400÷4=100

400÷5=80

400÷6=66.6666666667

You're welcome

4 0
3 years ago
Hey guys I need some help. Question in the image below
mafiozo [28]

Answer:

15 students at school

Step-by-step explanation:

So there is 50 students in total

First subtract that much with how much students have the flu

1/10 = 5/50

So 5 students have the flu

That leaves 45 students

Then subtract that much with the amount of students that are remaining are on the field trip

45 divided by 3 = 15

so 2/3 = 30/45 (they can both be multiplied and divided by 15)

so 30 of the 45 students are on the field trip

45 - 30 = 15

That means there are 15 students left over at school

5 0
3 years ago
An oceanside surf shop sells a bodyboard for $34.95. The wholesale cost of the bodyboard is $21.18. What is the percent of marku
ella [17]

Answer:

I believe it is 14%

Step-by-step explanation:

3 0
3 years ago
A survey was taken on pet ownership. 750 people were covered on the first day of the survey. The number tripled every subsequent
wlad13 [49]
Day one: 750 * 1 = 750
day two: 750 * 3 = 2250
day three: 2250 * 3 = 6750
day four: 6750 * 3 = 20250
day five: 20250 * 3 = 60750
day six: 60750 * 3 = 182250
add it all together: 750 + 2250 + 6750 + 20250 + 60750 + 182250 = <span>273000

The answer is C, </span>273000.
6 0
4 years ago
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