-3x = -15 <em>divide both sides by (-3)</em>
-3x:(-3)=-15:(-3)
x = 5
Answer:
the answer is B) 12a+6b
Step-by-step explanation:
3+9=12 so 3a+9a=12a,
7-1=6 so 7b-(1)b=6b
Answer:
21ax+4a−12
Step-by-step explanation:
You can square the whole problem to cancel out the square root. Might make things easier.
If the price of the yogurt is directly proportional to the weight of the purchase, then it can be expressed as:
Price of yogurt = weight of purchase
With the given above, it can be further expressed as:
$5.04 = 12 oz
These can be expressed in ratio form, which is:
5.04/12
Thus, if the cup weighs 8 oz and we don't know how much it costs, then the ratio should be:
n = 8 oz, or in fractions:
n/8
After this, simply equate the two and cross multiply.
5.04 / 12 = n/8
5.04(8) = 12n
40.32 = 12n
Then solve for n:
40.32 /12 = 12n/12
n = 3.36.
Thus, the 8 oz. cup of yogurt costs $3.36.
