We will use B for the number of baseball cards and H for the number of hockey cards.
B = 5H
B + H = 840
Use substitution by plugging 5H in for B in the second equation.
5H + H = 840
6H = 840
H = 140
If there are 140 hockey cards, then there are 5*140 = 700 baseball cards.
So the answer is 700.
Answer:
Step-by-step explanation:
-9/6 im not sure so dont get mand if im wrong
Slope = 2/5 and the point is (10,3)
The form of the equation is y = mx +b where m is the slope and b is the y-intercept.
To find the y-intercept (b) replace y, m and x with the given information:
y = 3 x = 10 and m = 2/5
Now you have 3 = 2/5(10) +b
Solve for b:
3 = 4 + b
Subtract 4 from each side:
b = 3-4
b = -1
Now replace b in the equation to get:
y = 2/5x-1
To get the type of car that Sandy can afford after 3 years, we find the future annuity of the his yearly deposits.
amount deposited by Sandy in a month is $260
amount deposited per year=260*12=$3120
time=3years
rate=7.8%
Fv of annuity= P[(1+r)^n-1]/r
substituting our values we get
Fv=3120[(1+0,078)^3-1]/0.078
=10109.06208
The value of a car he can drive is $10109.06208
Answer:
C) 3
Step-by-step explanation:
First we need to subtract the one-time payment for the car parts from the total bill: $274-$49=$225
Now we can find out how many hours of work were done. To do so we set up an equation like this:
(total bill) ÷ (amount per hour) = (How many hours of work)
Plug in your numbers:
$225 ÷ $75 = 3
So there were three hours of work done on Mrs.Bakers's car.