A fact family is made up of three numbers. Just as in any family the members, or numbers, are related and there are always at least four math facts to be made with them. Take, for example, these members of a fact family: 6, 4, and 10.
In the family 6, 4, and 10 they are related because you can add two of the numbers to get the last number.
6 + 4 = 10
You can also switch the first two numbers, using the commutative property of addition, and still get the same answer.
4 + 6 = 10
Just find how they can relate! Hope it helps!
Answer:
x < 50
Step-by-step explanation:
No more means that it cannot equal 50. Therefore we can remove the 1st two options.
We now have the 3rd option and 4th option to choose from.
The 4th option is incorrect because the inequality is saying that a number is greater than 50.
∴ x < 50 is our answer.
Answer:
(15, 11)
Step-by-step explanation:
(I'm assuming you are solving for x and y.)
Plug in the x equation:
4(2y - 7) + y = 71
8y - 28 + y = 71
9y - 28 = 71
9y = 99
y = 11
Then plug that answer into the other equation:
x = 2(11) - 7
x = 22 - 7
x = 15
You can check by doing the following to make sure you are right:
15 = 2(11) - 7
15 = 22 - 7
15 = 15
4(15) + 11 = 71
60 + 11 = 71
71 = 71
Answer:
We need 29 more $10 donations to complete $600 amount.
Step-by-step explanation:
Amount of money asked for donation = $10
Total amount of donation needed = $600
Amount of donation collected = $310
Amount of donation to be collected = $600 - $310 = $290
Let the number of $10 donation needed be x.
We need 29 more $10 donations to complete $600 amount.