Answer:
-13 + 9
Step-by-step explanation:
if you have -13° and then it rises 9°, it will be added since it’s rising and rise can be a way of addition. so -13 + 9 is your answer
Answer:
7 - n
Step-by-step explanation:
2 x 117
3 x 78
6 x 39
9 x 26
13 x 18
Answer:
840 ways.
Step-by-step explanation:
For the first jar, you have 7 marbles to put in.
For the second, you now have 6 marbles to put in.
For the third, you have 5 marbles.
For the fourth, you have 4 marbles.
7 * 6 * 5 * 4
= 42 * 20
= 840 ways.
Hope this helps!
Let n be the number of lbs of nuts.
Let r be the number of lbs of raisins.
9n + 3r = 60 * 5 = 300 .............(1)
n + r = 60
n = 60 - r ...............(2)
Plugging the expression for n in (2) into (1) we get:
9(60 - r) + 3r = 300
which expands to:
540 - 9r + 3r = 300 .............(3)
Simplifying and rearranging (3) we get:
-6r = -240
Therefore r, the weight of raisins = 40 lbs
and the weight of nuts is 60 - 40 = 20 lbs
