Remember you can do anything to an equation as long as you do it to both sides
2x+3(x-4)=x-20
first distribute
2x+3(x)+3(-4)=x-20
2x+3x-12=x-20
5x-12=x-20
minus x both sides
4x-12=-20
add 12 to both sides
4x=-8
divide both sides by 4
x=-2
Answer: he had 68 cherries in the start
Step-by-step explanation:
A. 38
Let X = seventh graders
6th graders are twice the number of 7th graders; therefore, 6th graders will be 2X.
The total number of students is 57.
2X + X = 57
3X = 57
X = 57 / 3
X = 19
IF X represents the 7th graders; there are 19 seventh graders present.
Since 6th graders are represented by 2X; Then, 2 * 19 = 38 is the number of 6th graders present.
Add both numbers to check: 19 + 38 = 57.
Answer:
The original number is 5.
Step-by-step explanation:
When you double 5, you get 10. And 10 is 5 more than 5.
Answer:
1/3 of 12 would be greater than 1/4 of 12.
Step-by-step explanation:
One third (1/3) of twelve results in 4. (Multiply 12/1 by 1/3 and simplify.)
One fourth (1/4) of twelve results in 3. (Multiply 12/1 by 1/4 and simplify.)
4 > 3.
Therefore, 1/3 of 12 is greater then 1/4 of 12.
