Step-by-step explanation:
since Chelsea can paint in 9hrs and Greg in 7, add the hrs and divide by 2 i.e (9+7)/2 =8 hrs
~10 hrs
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Answer: k=1
Step-by-step explanation:
4 - 2k = 2
If it's easier you can also write it like
-2k + 4 =2
Solve for k by isolating it. Move four and then divide the -2.
-2k =2-4
-2k= -2
k= -2/-2
k=1
4/14, 6/21, 8/28, etc. Just multiply both numerator and denominator by the same number.
Yes it is a scientific notation equation
X < -1
rearrange➡ 5 + 6 × (x + 4) - (20) < 0
➡ ( 5 + 5 × ( x + 4 )) - 20 < 0
Pull out all of the like terms (factors) ➡ 5x + 5 = 5 ( x + 1)
5 × ( x + 1 ) < 0
divide botg sides by 5
Solve, basic inequality
Subtract 1 frok basic sides
x < -1