Answer:
X = 5
Step-by-step explanation:
3x + 12 + 9x = 72
okay hopefully i can explain so when your doing this combine like terms so
3x + 9x = 12x
12x + 12 = 72
then you would subtract both sides by 12
+12 = subtract x+12=2
- 12 = add x-12=2
there just flipped so in this case i would subtract 12
12x + ( 12-12) = ( 72-12 )
so 12-12 = 0 and 72-12 is equal to 60
12x = 60
the divide on both sides l but leave the x alone so its just 60 divided by 12 wich is 5
so X = 5
hope this helps with ur homework a little btw go back and redo ur other awnsers with this new concept hope it helps
Answer:
1.5707
Step-by-step explanation:
i solved it using the formula :

Step-by-step explanation:
Amount of orange juice in 400ml glass
= 400ml * (40%/100%) = 160ml.
Amount of orange juice in 300ml glass
= 300ml * (1/2) = 150ml.
Since 150ml < 160ml, the 300ml glass contains less orange juice.
Answer:
see below
Step-by-step explanation:
Mr. Brown
72 magazines/ 24 students = 3 magazines per student
Mrs. Garcia
98 magazines/ 28 students = 3.5 magazines per student
Mrs. Garcia sold more per student
2.5 grams of salt and 1000mg of sodium is equal to shalf a teaspoon of salt
:)