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ahrayia [7]
3 years ago
10

we said that the ratio of girls to boys in the class was 2:9. if there were 90 boys in the 9th grade, how many girls are there

Mathematics
2 answers:
soldi70 [24.7K]3 years ago
8 0

20 girls

Step-by-step explanation:

For every 9 boys there are 2 girls, so, if we have 90 boys, 9x10=90 and then since we have the 10 we use it to do 2x10 to get 20 girls

Juliette [100K]3 years ago
7 0

Answer:

20

Step-by-step explanation:

If the ratio of boys is 9 there are 90 boys. If 9=90 then 1= 10. 10 x 2 = 20

I hope this helps :0)

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Sundas made 2 out of her 5 shots she attempted. Find the percent of the shots she attempted.​
Rudik [331]

Answer:

<u>i think</u> it is 40%

Step-by-step explanation:

she made 2/5 shots so

2/5*2=4/10

i times it by 2 because its out of 100

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then i times it by 10 to get to 100

(2/5 is not 2 divided by five it is 2 over 5 just incase u didnt know what i was talking about)

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2 years ago
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Darya [45]

Hope you won't be turned off by a correction, but we really need to use the symbol " ^ " to denote exponentiation.

Thus, we have x^2 = 100

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3 0
3 years ago
The distance between two cities is 180km. The distance was covered by a car at the rate of 50km/h, by a bus 45km/h, by a truck a
Gennadij [26K]

Answer:

The speed and time are directly proportional in that the higher the speed the lesser the time and vice versa.

The constant is the total distance which is 180 km

Step-by-step explanation:

Step one:

given data

The distance between the  two cities is 180km

1.The distance was covered by a car at the rate of 50km/h

The time taken will be

velocity= distance/time

time= distance/velocity

time= 180/50

time= 3.6 hours

2.The distance was covered by a bus 45km/h

The time taken will be

velocity= distance/time

time= distance/velocity

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3.The distance was covered by a bicycle at 25km/h

The time taken will be

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7 0
3 years ago
A television at Walmart cost $1,538 and $1,923 at Target. With taxes, what would you actually pay at each store. Walmart sales t
mamaluj [8]

Answer:

walmart:1645.66 target:2096.07

Step-by-step explanation:

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target:1923/100 × 109= 2096.07

i think this is the ans but im not very sure

8 0
3 years ago
No rush but can somebody help me ASAP I’ve been missing days of school and I’m behind !
matrenka [14]
If you need to evaluate the answer is 1.2
8 0
3 years ago
Read 2 more answers
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