Answer:
3x + 10
Step-by-step explanation:
9 + x + 1 + 2x
Combine like terms
2x + x = 3x
Combine like terms
9 + 1 = 10
We’re left with 3x + 10
Answer:
D. 50
Step-by-step explanation:
Multiply the top and bottom number by 10. The bottom number comes out to be 70 and the top number comes out to be 50.
Answer:
Bren=5 years
Tom=7yrs
Sally=4 yrs
Kate=8years
Step-by-step explanation:
-Let Bren's current age be x, therefore Tom is x+2
-Let Sally's current age be y, therefore Kate is 2y
-Also, given that:
#We calculate the ages one year ago of Tom and Sally:
#Substitute for x in i;
Answer:
Not a polynomial.
Step-by-step explanation:
A polynomial would have addition or subtraction signs separating the variable terms. so while -7c^3 d is not a polynomial, -7c^3 +cd would be.
Answer:
1. 140
2. 140
3. 40
4. 40
Step-by-step explanation:
The lines are parallel so angels 1,4,5,8 are the same.
Same with angels 2,3,6,7.
To find angels 7 and 2 subtract 140 with 180 since the horizontal line equals 180 which gives you 40
