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Natalija [7]
3 years ago
7

Students were surveyed about their favorite colors. 1/4 of the students preffered red, 1/8 of the students preffed blue, and 3/5

of the remaining students prefeered green. If 15 students preferred green, how many students were surveyed?
Mathematics
1 answer:
Neko [114]3 years ago
8 0
30 or 50 students were surveyed
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A salesperson earns a 10% commission on the selling price of each vehicle after a $2,000 dealership fee is deducted from that pr
Ipatiy [6.2K]

Answer:

Salesprice =$25000

Step-by-step explanation:

comission=$ 2300;10

salespreice=x:100

x=2300*100/10=$23000

dealership fee= $2000

salesprice= $25000

5 0
4 years ago
If there are approximately 1.8 million cars in Vancouver and if each car travels an average of 17,500 kilometres in a year, how
Goryan [66]

Rates are used to measure a quantity over another.

<em>The 1.8 million cars use </em>1.85 \times 10^{10}<em> liters each year</em>

Given

Cars = 1.8\ million

d = 17500km --- distance

r = 40miles/gallon

First, we calculate the number (n) of gallons used by each car

r = \frac{d}{n}

Solve for n

n = \frac{d}{r}

So, we have:

n = \frac{17500km}{40miles/gallon}

n = \frac{17500km}{40miles}gallon

Convert miles to kilometers

n = \frac{17500km}{40km \times 1.60934}gallon

n = \frac{17500km}{64.3738km}gallon

n = 271.85\ gallon

The number of gallons (N), used by all the cars is:

N = n \times cars

N = 271.85 \times 1.8\ million

N = 489330000

Convert to liters

N = 489330000 \times 3.78541L

N = 1852314675.3L

In scientific notation to 2 decimal places, we have:

N = 1.85 \times 10^{10}L

<em>Hence, the number of liters used is </em>1.85 \times 10^{10}<em />

Read more about distance and rates at:

brainly.com/question/24659604

4 0
3 years ago
A map has a scale of 1 cm to 20km. Rewrite the scale as a ration in its simplest form.
Lesechka [4]

Answer:

1 : 2000000

Step-by-step explanation:

we have to convert 20km into cm so

20km×100000

=2000000

So ratio is 1:2000000

<h2>MARK ME BRAINLIEST PLS!</h2>
6 0
2 years ago
Read 2 more answers
If 6 beads weigh 48 grams, how many beads weigh 72 grams?
allochka39001 [22]
Nine.
48 divided by 6 is 8, which means that each bead weighs 8 grams.
72 divided by 8 is nine.
4 0
3 years ago
Read 2 more answers
HELP PLEASE THANK YOU SO SO SO MUCH &lt;3
pashok25 [27]
Just copy this down. you welcome

3 0
4 years ago
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