Answer:
i got 96
Step-by-step explanation:
you have to find the unit rate for 1 driveway and times that by 12
32 divided by 4 is 8
8 x 12 is 96
hope this helps :)
Because thats not how its pronounced anymore.
Happy studying ^_^
There are 25 $10 bills and 11 $20 bills.
Step-by-step explanation:
Given,
Worth of proceeds from garage = $470
Let,
x be the number of $10 bills
y be the number of $20 bills.
According to given situation;
10x+20y=470 Eqn 1
x = y+14 Eqn 2
Putting value of x from Eqn 2 in Eqn 1
![10(y+14)+20y=470\\10y+140+20y=470\\30y=470-140\\30y=330](https://tex.z-dn.net/?f=10%28y%2B14%29%2B20y%3D470%5C%5C10y%2B140%2B20y%3D470%5C%5C30y%3D470-140%5C%5C30y%3D330)
Dividing both sides by 30
![\frac{30y}{30}=\frac{330}{30}\\y=11](https://tex.z-dn.net/?f=%5Cfrac%7B30y%7D%7B30%7D%3D%5Cfrac%7B330%7D%7B30%7D%5C%5Cy%3D11)
Putting y=11 in Eqn 2
![x=11+14\\x=25](https://tex.z-dn.net/?f=x%3D11%2B14%5C%5Cx%3D25)
There are 25 $10 bills and 11 $20 bills.
Keywords: linear equation, substitution method
Learn more about linear equations at:
#LearnwithBrainly
Answer:
Step-by-step explanation:
If there needs to be 4 teachers per 21 students, you would divide the total amount of students by 21 and multiply that answer by 4. SO...:
84 ÷ 21 = 4 groups of 21 students.
4 groups × 4 teachers = 16
*** Answer***
16 TEACHERS
The y-intercepts are
(0,0) and (5,0)
The equation of the quadratic function is
f(t) = at(t-5)
Solving for a
12 = a(3)(3-5)
a = -2
The equation of the quadractic function is
f(t) = -2t(t -5)
f(t) = -2t² + 10t<span />