The best answer I believe is t - 2
Answer:
$65.00
Step-by-step explanation:
$60 +$ _ = $125.00
Answer:
A. x = 2 and y =2
B. x = 3 and y = -1
Step-by-step explanation:
A. {
x = 3y − 4
2x − y = 2
1) Substitute the value of x
2(3y − 4) − y = 2
2) Solve the equation for y
y = 2
3) Substitute the value of y
x= 3(2) -4
4) Solve the equation for x
x = 2
Final Solution: x = 2 and y =2
B. {
3x + 2y = 7
−x + y = −4
1) Multiply both sides of the equation by 3
-3x + 3y = -12
2) Eliminate one variable by adding the equations
3x + 2y = 7
<u>+ (−3x + 3y = −12)</u>
5y = -5
3) Divide both sides of the equation by 5
y = -1
4) Substitute the given value of y into the equation -x + y = -4
-x + (-1) = -4
5) Solve the equation for x
x = 3
Final Solution: x = 3 and y = -1
Answer:
use a calculator
Step-by-step explanation:
(4x + 2) more minutes is spent running on the treadmill than lifting weights
<em><u>Solution:</u></em>
Given that,
your friend spends 6+5x minutes lifting weights
9x+8 minutes running on a treadmill
Therefore,
Time spent on lifting weight = 6 + 5x minutes
Time spent on treadmill = 9x + 8 minutes
<em><u>Write a polynomial that represents how much more time is spent running on the treadmill than lifting weights</u></em>.
Thus we need to find the difference between time spent on treadmill and time spent on lifting weight
Difference = Time spent on treadmill - Time spent on lifting weight
Difference = 9x + 8 - (6 + 5x)
Difference = 9x + 8 - 6 - 5x = 4x + 2
Thus 4x + 2 more minutes is spent running on the treadmill than lifting weights