6 - 3 = 3
-2 - (-9) = 7
(3 , 7)
Answer:
There are 10 orange marbles
Step-by-step explanation:
There are 25 marbles in the bag
40% are orange
To determine the number of orange marbles, we multiply the total number of marbles by the percent that are orange
25 *40% = number of orange marbles
25*.40
10
There are 10 orange marbles
Plug in 31 where h is assuming that's what the variable h represents.
31 - 15 = 3.2t
16 = 3.2t
Divide both sides by 3.2
t = 5
Let a=number of pens and b=number of pencils.
8a+7b=3.37; 5a+11b=3.10.
To eliminate a variable multiply the first eqn by 5 and the second by 8:
40a+35b=16.85, 40a+88b=24.80.
Subtract these equations: 53b=7.95, b=$0.15. So 5a=3.10-1.65=$1.45, a=$0.29.
Pens are $0.29 each and pencils $0.15.
Answer:
it cannot
Step-by-step explanation:
because if you add 10 + 20 it is 30 which is less than 32