Given:
Joey had 26 game cards.
His friend Richard gave him some more, and now Joey has 100 cards.
To find:
How many cards did Richard give to Joey?
Solution:
Let x be the number of cards that Richard give to Joey.
Joey had 26 game cards.
Now, the total cards joey has
Joey has total 100 cards.
Therefore, Richard gave him 74 cards.
If you would like to solve the equation 1/2 + 9/10 + m + n = 2, you can do this using the following steps:
1/2 + 9/10 + m + n = 2
m + n = 2 - 1/2 - 9/10
m + n = 20/10 - 5/10 - 9/10
m + n = 6/10
m + n = 3/5
If you want to solve this equation for m:
m = 3/5 - n
If you want to solve it for n:
n = 3/5 - m
Step-by-step explanation:
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When you're converting from a smaller unit to a larger unit, divide.
When you're converting from a larger unit to a smaller unit, multiply.