I think it is 1156 because 345 + 425 = 770, and 770 + 386 = 1156
Answer:
17. 29
18. 6
19. 16
20. 115
Step-by-step explanation:
17.
x+y+7
**plug in the x and y values**
(12)+(10)+7
22+7
29
18.
x+4-y
**plug in the x and y values**
(12)+4-(10)
16-10
6
19.
8(x-y)
**plug in the x and y values**
8(12-10)
8(2)
16
20.
7(12+3)+(10)
7(15)+10
105+10
115
This is what I got out for all the questions!! Have a FANTASTIC rest of your day!! Remember to ease your stress!! :))
If you draw a rectangle divided up into eight even parts, and label them each as 1/8, then you can show your work for how you double it. You do this by "coloring" one in, and then doing the same for a second piece (but color that one in a different way). You can visually double an eighth in that way.
Or, you can simply multiply by 2 to double 1/8:
1/8x2/1=2/8