Answer:
2
Step-by-step explanation:
Following the order of operations as set out in PEMDAS
6² - 36 ÷ 3² × 4 - 18 ( no parenthesis so evaluate exponents )
= 36 - 36 ÷ 9 × 4 - 18 ( multiplication/ division, evaluate from left to right )
= 36 - 4 × 4 - 18
= 36 - 16 - 18
= 20 - 18
= 2
Breanna exercises for 4 and 1/2 hours during the six days.
To find the answer, we have to multiply 3/4 by 6.
To do this, we change 6 to 6/1 and multiply straight across.
3/4 x 6/1 = 18/4 = 9/2
9/2 is the same as 4 and 1/2
(60/30)(x^20/x^10)(y^24/y^12)
(2)(x^10)(y^12)
2x^10y^12
Try photo math it is very helpful
You can reword the two equations as:
-5x-y=15 (Divide original value by 3)
-2x+6y=6
Then use elimination to find x:
-30x-6y=90 (Multiply by 6 to get y values to be same to cancel out)
-2x+6y=6
You're left with:
-32x=96. Which can then be solved to find x which is -3.
Then plug back in
-2x+6y=6
Now to: -2(-3)+6y=6.
Which reduces to 6+6y=6. So y=0.
To graph them, just reword the equations (yes once again) so that y is in front.
y=-5x-15 and y=(1/3)x+1
