Answer:
-515
Step-by-step explanation:
In this example the first value is −15 and every value afterwards is 20 less.
After substituting these values to above formula, we obtain:
All we have to do is add 25 twenties or 25 x 20 = 500 and -15 - 500 = -515
535.25 is the answer bc you add the deposits and subtract the withdrawals
To figure out how many revolutions Buddy goes in 1 minute, (60 seconds) we can use proportions
4 revolutions/11 seconds = x revolutions/60 seconds
When we cross multiply, (multiplying one numerator by the other denominator, and vice versa for the other numerator) we get
240 = 11x
divide both sides by 11 to get
21.81 = x
or 21 complete revolutions
Answer:
a pool since it has a large volume
Step-by-step explanation:
Answer:
x = 7 ; y = 9
Step-by-step explanation:
Given the system of equation :
y = 2x - 5 - - - (1)
-x + y = 2 ___(2)
From (1)
y = 2x - 5
Put y = 2x - 5 into (2)
-x + 2x - 5 = 2
-x + 2x = 2 + 5
x = 7
We can then solve for y;
Substituting x = 7 into. Equation (1)
y = 2x - 5
y = 2(7) - 5
y = 14 - 5
y = 9
Hence ;
x = 7 ; y = 9
