Answer:
X=-1
Step-by-step explanation:
3x-6=-9
3x=-9+6
3x=-3
x=-1
3/4 x 21 would be 15.75.
All you had to do was multiply 3/4 and 21.
Hope this helps.
Answer:
Jason's camp counselor job pays a higher rate than Mia's lifeguard job.
Jason's job pays $9 a hour.
Mia's job pays $8.75 a hour.
52.50 divided by 6 equals 8.75
70.00 divided by 8 equals 8.75
43.75 divided by 5 equals 8.75
Step-by-step explanation:
Step-by-step explanation:
1/5x-12=0
1/75-12=0
1-900=-899/75
ans=11.99
Answer:
Joe is 14.
Martha is 28.
Step-by-step explanation:
Use the variables and information from the question to make equations.
If Joe's age is half Martha's:
(1/2)m = j OR 2j = m
If their ages combined is 42:
m + j = 42
We can substitute the equation m=2j into equation m + j = 42, replacing "m".
m + j = 42 Substitute m for 2j
2j + j = 42 Combine like terms, terms with same varables
3j = 42 Divide both sides by 3 to isolate j
j = 14 Joe's age
Since j = 14, we can substitute it into equation m=2j to find "m".
m = 2j Substitute j for 14
m = 2(14) Simplify
m = 28 Martha's age
Therefore Joe is 14 and Martha is 28.
