Answer:Alex earned $12
John earned $36
Step-by-step explanation:
j=3a
a+3a=48
4a=48
a=48/4
a=12
j=36
1/5( 5/2 x 4/7 -11/7) + 3/28
Multiply the terms (5/2 x 4/7) in bracket then subtract it from 11/14. Result will be 10/7.
Then multiply 1/5 with 10/7. The result will be 2/7.
2/7 + 3/28 = 11/28
T
Answer:
X=2
Step-by-step explanation:
Step 1: Simplify both sides of the equation.
120(2x−2)=240
(120)(2x)+(120)(−2)=240(Distribute)
240x+−240=240
240x−240=240
Step 2: Add 240 to both sides.
240x−240+240=240+240
240x=480
Step 3: Divide both sides by 240.
240x
/240
=
480
/240
x=2
Answer:

Step-by-step explanation:
Apply the 30-60-90 formula
side between 60 and 90 is x
side between 90 and 30 is 
side between 90 and 30 is 2x
If
=
then x= 