Answer:
Check step-by-step.
Step-by-step explanation:
Okay, so. She gets 5 dollars and she does 15 chores. You would multiply it.
5 * 15 = $75
Then you would subtract 112 and 75.
112 - 75 = 37.
She will get $75. Then, she will need to gather $37
Answer:
Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead
Step-by-step explanation:
Mariana workings:
-3(2x - 4) = -12
-6x - 12 = -12
Her error was multiplying -3 and -4 which gives +12 but she wrote -12 instead
-6x = 0
x=0
Correct workings:
-3(2x - 4) = -12
-6x + 12 = - 12
-6x = -12 - 12
-6x = -24
x = -24/-6
x = 4
Answer:
13.04
Step-by-step explanation:
since 100 is 1/4 of 400, you divide 52.16 by 4
Answer:
Step-by-step explanation:
The given system is
We substitute the bottom equation into the top equation to get:
Expand to get:
Group similar terms:
Combine similar terms:
Put into the bottom equation
The solution is
3921 / 49 = 80
You are trying to find out how many 49's go into 3921, to do this, you have to take 3921 and divide it by 49, this will tell you how many eggs are in each nest.
Alternatively, the question could have said there are 3921 total eggs, and approximately 80 eggs in each nest, how many nests were there?
Here we'd go ahead and divide 3921 by 80 to get 49.
