Set up a proportion.
Let x = the number of students in 29970 who speak 3 or more languages.
285/19 = 29970/x Cross multiply
285 x = 19 * 29970
285x = 569430
x = 569430/285
x = 5415 students speak 3 languages.
Answer:
D. 49.75 months
Step-by-step explanation:
Esme earns a net salary of $2400 per month.
In her saving account she already have a balance of $100.
She saves $100 every month after her monthly expenses.
She plans to buy a car of $20000 using a no interest loan .
She usually make a $300 payment on the loan every month.
The number of months she will save enough money to pay off her loan completely can be calculated below.
let
x = number of months
The amount she saved altogether every month is $300 + $100 = $400.
Recall she already has $100 in her account
Amount of loan to be repaid = 100 + 400x
20000 = 100 + 400x
20000 - 100 = 400x
19900 = 400x
divide both sides by 400
x = 19900/400
x = 49.75 months
You substitute the y from the second eqaution to the y in the first equation
Answer:
21
Step-by-step explanation:
Boys:
Q1: 78
Q3: 140
IQR: 140 - 78 = 62
Girls:
Q1: 97
Q3: 180
IQR: 180 - 97 = 83
Difference:
83 - 62
21
(total cost in dollars) = (cost per week)*(number of weeks)
t = 9*w
t = 9w
----------------------------------------------------------------------------------
Final Answer: Choice B) t = 9w
