15x - 6 = -9
9(x+2) = 9x+2=11x
9+11x=19x
Right???
Let Length of each Plan A workout be 
and Length of each Plan B workout be $b$
on Wednesday,
$5a+3b=7$
$2a+12b=19$
multiply equation one by $4$ and subtract equation two from it
to get,
$18a=9$ or $a=\frac12$
substitute $a$ in eq 2. to get $b$, $12b=18\implies b=\frac32$
Answer:
4 (20) + 6(6) = 120
4(20) + 4 (6) = 100
Step-by-step explanation:
Hi, to answer this question we have to write a system of equations with the information given:
Build time (hours) = 4c + 6a = 120
Test time (hours) = 4c + 4 a = 100
Where c represents the number of child bikes and a represents adult bikes.
So, for 20 child bikes and 6 adult bikes:
4 (20) + 6(6) = 120
4(20) + 4 (6) = 100
Feel free to ask for more if needed or if you did not understand something.
Answer:
The best possible answer for this would be: D. Mode.
This is because mode measures how many times each number appears.
Answer:
Expanded Notation Form:
3
+ 0.6
+ 0.01
+ 0.001
Expanded Factors Form:
3 × 1
+ 6 × 0.1
+ 1 × 0.01
+ 1 × 0.001
Expanded Exponential Form:
3 × 100
+ 6 × 10-1
+ 1 × 10-2
+ 1 × 10-3
Word Form:
three and six hundred eleven thousandths
