The sum of two numbers is -3 and their difference is 9 find the numbers
1 answer:
Answer:
-6 and 3
Step-by-step explanation:
3-(-6)=3 +6=9 (two negative signs= positive sign)
-6 +3 = -3
It you have 6 negative tiles and add 3 positive tiles, the 3 negative tiles cancel 3 positive tiles. So hat is left is 3 negative tiles
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Answer:160 dimes
Step-by-step explanation:
7 dimes= 70 cents
9 dimes= 90 cents
70+90=160
Step-by-step explanation:
add the like terms
2x - 14x = -71 -1
-12x = -72
12x = 72
x = 6
Density = mass/volume
Let mass=x
8.94= x/(10*45*.2)
X=8.94*90
Mass=804.6 g
Hope this helped :)
After 8 minutes it would be 2000, so after 16 it would be 4000
