Answer:
x = -9, y = -3.
As an ordered pair it is (-9, -3).
Step-by-step explanation:
Substitute x = 3y in equation 1:
2y + 3y = -15
5y = -15
y = -15/5
y = -3.
Now find x by plugging y = -3 in x = 3y:
x = 3*-3 = -9.
Check the answer in equation 1:
2(-3) + -9
= -6 - 9
= -15 Correct.
2/5 of the students is equivalent to 394 students. The total number of students involved is thus 394*5/2.
Answer:
Muscle strength is the ability to exert a maximal amount of force for a short period of time. ... Muscle endurance is the ability to do something over and over for an extended period of time without getting tired. In the gym, that may be doing 50 body weight squats in a row, moving to a rhythm.
<span>Moxie wants to have $5000. how much money does she have to deposit in an account at 6% interest, compounded 3 times per year, in order to have $5000 at the end of 6 years? The formula for compound interest AMOUNT is
A = P (1 + r/n)^(nt),
where P is the principal and must be calculated here; A is the amount Moxie wants to have after 6 years, and is $5000; r is the annual interest rate, expressed as a decimal fraction: 0.06; n is the number of compounding periods per year, which here is 3; and t is the time, in years, here equal to 6.
Solve the following for P: $5000 = P (1 + 0.06/3)^(3*6)
Hint: $5000 = P (1.02)^18
</span>