Answer:mm
13)30187.802
14)1837.565
15)1446.336
16)74008
17)33297.293
18)34972.978
19)13817.6
20)155.589
Step-by-step explanation:
13)18000*1.09to the power of 6
14)1500*1.07³
15)1240*1.08²
16)55000*1.16²
17)28600*1.079²
18)21000*1.136to the power of 4
19)12700*1.088
20)130*1.094²
Answer:
Step-by-step explanation:
<u>Statements </u> <u> Reasons</u>
1) QS =42 Given
2) QR + RS = QS Segment Addition Postulate
3) (x + 3) + 2x = 42 Substitution Property
4) 3x + 3 = 42 Simplify
5) 3x = 39 Subtraction Property of Equality
6) x=13 Division Property of Equality
Explanation:
We have given QS=42. We have to prove that x=13
We will use Segment Addition Postulate which states that given 2 points Q and S, a third point R lies on the line segment QS if and only if the distances between the points satisfy the equation QR + RS = QS.
Then we will substitute the values in the defined postulate.
where QR= x+3
RS=2x
QS=42
QR+RS=QS
(x+3)+2x= 42
Now simplify the expression by opening the brackets.
x+3+2x=42
3x+3=42
Now subtract 3 from both sides.
3x+3-3=42-3
3x=39
divide both sides by 3.
3x/3 =39/3
x=13..
For this case, the first thing we must do is define variables:
x: number of quarters
y: number of nickels
We now write the system of equations:
x + y = 68
0.25x + 0.05y = 13.40
Solving the system we have:
x = 50
y = 18
Answer:
they have:
quarters = 50
nickels = 18
Answer:
6 people
Step-by-step explanation:
75% of 8 is 6
multiply 8 by the decimal .75
Answer:
2
Step-by-step explanation:
good luck hoped it helped
