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natita [175]
2 years ago
14

If 13 out of 20 students are girls, what is the ratio of girls to boys?

Mathematics
1 answer:
STALIN [3.7K]2 years ago
3 0

Answer:

I think its 13:7

Step-by-step explanation:

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a marrow plants 0.5 m long. every week it grows by 20%. a find the value of the common ratio. b calculate how long the plant is
OLga [1]

Answer:

The common ratio is 1.2.

After 12 weeks the plant will be 4.46 meters long.

After one year the plant will be 6,552.32 meters long.

Step-by-step explanation:

Given that a marrow plants 0.5 m long and every week it grows by 20%, to find the value of the common ratio, calculate how long the plant is after 12 weeks and comment on the predicted length of the marrow after one year must be performed the following calculations:

0.50 x 1.2 ^ X = Y

Therefore, the common ratio is 1.2.

0.50 x 1.2 ^ 12 = Y

0.50 x 8.916 = Y

4.4580 = Y

Therefore, after 12 weeks the plant will be 4.46 meters long.

0.50 x 1.2 ^ 52 = Y

0.50 x 13,104.63 = Y

6,552.32 = Y

Therefore, after one year the plant will be 6,552.32 meters long.

5 0
2 years ago
Distance between 2 airports 1,505 miles. Average speed of airplane 420 mph. Flight time hours
-BARSIC- [3]
For this case we have the following definition:
 d = v * t
 Where,
 d: distance
 v: speed
 t: time
 Clearing the time we have:
 t = d / v
 Substituting values:
 t = 1505/420
 t = 3,583 hours
 Answer:
 
Flight time hours:
 
t = 3,583 hours
6 0
3 years ago
At 6 a.m., the temperature was –8°C. By noon, the temperature had risen 6°C. The temperature at 6 p.m. was –10°C. Which integer
Grace [21]
It’s negative 16 so i guess it’s a negative integer
4 0
2 years ago
Read 2 more answers
how many of the cookies had fewer than 6 chocolate chips in them? 5,6,3,9,6. What is the average amount of chocolate chips?
denis-greek [22]
2 cookies had less than 6 if you are saying those numbers are cookies with the number of chocolate chips. And the average amount of chocolate chips would be 5.8
4 0
3 years ago
A $60 video game is on sale for 30% off! How much money will you save?
Oksana_A [137]

Answer:

$18

Step-by-step explanation:

8 0
3 years ago
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