Answer: He will have 3750 in 5 years.
Step-by-step explanation: You need to do 500x1.5x5=3750! 500 dollars is the amount in the account. 1.5 is the interest. 5 is the amount of years.
Answer:
y - 4 + -1(x + 2)
Step-by-step explanation:
Compare your y−8=−(x−2) to
y-k = m(x-h). m is the slope of the line and (h, k) is a point.
We see immediately that the slope of the given line is m = -1.
Starting with point-slope form, y - k = m(x - h), we insert -1 for m and (-2, 4):
y - 4 + -1(x + 2)
This is the desired equation.
Let denote the amounts (in liters) of the 20%, 30%, and 60% solutions used in the mixture, respectively.
The chemist wants to end up with 72 L of solution, so
while using twice as much of the 60% solution as the 30% solution, so
The mixture needs to have a concentration of 35%, so that it contains 0.35•75 = 26.25 L of pure acid. For each liter of acid solution with concentration , there is a contribution of liters of pure acid. This means
Substitute into the total volume and acid volume equations.
Solve for and . Multiply both sides of the second equation by 5 to get
By elimination,
so that
and
Answer:
Formula of circumference: pie(use 3.14 or 22/7) x radius (half of diameter or already given radius) x 2
100 + 100 = 200.
Half of 50(diameter) is 25(new radius). 25(radius) x 3.14(pie) x 2(it always will be there when finding circumference) = 157.
200 + 157 is = 357.
357 is your answer.