Answer:
a.
x + y = 60
x = y + 30
b.
substitution:
(y + 30) = y = 60
2y + 30 = 60
2y = 30
y = 15
15 minutes for freehand
c.
No, because if he spends 40 minutes on the treadmill, he would have spent 10 minutes for freehand exercises. His total time in the gym would be 50 minutes, not 60.
To solve this problem you must appply the formula for simple interest, which is:
I = RxPxN
I: Simple Interest.
R:Rate (9.5$/100=0.095/12).
P: The principal (P=$9000).
N:number of periods (N=24).
When you substitute these values into the formula, you obtain:
I=RxPxN
I=(0.095/12)x9000x24
I=$1710
Therefore, the monthly payment is:
$1710/24=$71.25
What is Jerry's monthly payment?
The answer is: Jerry's monthly payment is $71.25
Answer:
D. All three chose a valid first step toward solving the equation.
Step-by-step explanation:
Aaron, Blaine, and Cruz are solving the equation 4/7 (7 − n) = −1. Aaron started his solution by multiplying both sides of the equation by 7/4 . Blaine started by using the distributive property to multiply 4/7 by both 7 and −n. Cruz started by dividing both sides of the equation by 4/7 .
Which of the following is true?
A. Blaine and Cruz made an error in picking their first steps.
B. Cruz made an error in picking his first step.
C. All three made an error because the right side equals -1.
D. All three chose a valid first step toward solving the equation.
Given:
4/7(7 - n) = -1
Aaron:
4/7(7 - n) = -1
Multiple both sides by 7/4
4/7(7 - n) * 7/4 = -1 * 7/4
7 - n = -7/4
- n = -7/4 - 7
- n = (-7-28)/4
- n = -35/4
n = 35/4
Blaine:
4/7(7 - n) = -1
4/7(7 - n) × 7 = -1 × 7
4(7 - n) = -7
28 - 4n = -7
-4n = -7 - 28
- 4n = - 35
n = -35/-4
n = 35/4
Cruz:
4/7(7 - n) = -1
Divide both sides by 4/7
4/7(7 - n) ÷ 4/7 = -1 ÷ 4/7
4/7(7 - n) × 7/4 = -1 × 7/4
7 - n = -7/4
- n = (-7-28)/4
- n = -35/4
n = 35/4
D. All three chose a valid first step toward solving the equation.
Answer:
35 and communitive property
Step-by-step explanation:
on edg 2021
Answer:
36 meters²
Step-by-step explanation:
Hassan built a fence around a square yard. It took 48 meters^2 of lumber to build the fence. The fence is 1.5 meters tall.
Let say square yard = x * x meters²
Perimeter of Square yard = 4x meters
Height of fence =1.5 meters
Area of fence = 4x * 1.5 =6x meters²
6x = 48
Divide both sides by 6
x = 8
Area of square yard = 6 × 6= 36 meters²
36 meters² is the area of the yard inside the fence
