The answer is 4.85, rounded
60 divided by 70 and multiplied by 100 to get your answer
Answer:
No, Angela is not correct.
As the method Jim was performing will also lead to the solution.
Step-by-step explanation:
We are given first equation as:
Ax + By = C
Second equation is:
Dx + Ey = F
Jim solved the equation as:
He begins by multiplying equation (1) by D and equation (2) by A.
and so by subtracting both the equations he will obtain a value of y.
and then put the y-value in any of the given two equations to obtain the value of x.
Angela Method:
you should have multiplied equation (1) by E and equation (2) by B.
and when she will subtract both the equations she will get the value of x first and then when she will put the value of x in any of the given equation she will obtain the value of y.
But both will get a value for x and y.
Hence, the method Jim was performing was also correct.
Step-by-step explanation:
1 _21:00_ , _22:10_, 1:10
2. 1:20
3. 18:00
4. 21:35
Answer:
9 5/12
Step-by-step explanation:
2 2/3 + 6 3/4
find a common denomenator. For 3 and 4, it would be 12.
2 8/12 + 6 9/12
add
8 17/12
12 goes into 17 one time, with 5 left over
9 5/12
