5*a+2*b=23
5*a-2*b=7:
a=(23-2b)/5
b=(7+5a)/2:
a=(23-2*(7+5a)/2)/5
5a=23-7-5a
5a+5a=23
a=23/10
b=(7+5*23/10)/2
b=(7+23/2)/2=(37/2)/2=37
For this case, we observe that the four options represent the steps to build a line similar to the PQ line segment.
We have then that the first step is:
Opening of the compass from P to Q to measure the length of the PQ line.
Answer:
An image that represents the first step in constructing the copy of a line segment is:
option 1
Answer:
it's x= -1/2 hope I helped you have a nice day! \ (>w<) /
Answer:
Step-by-step explanation:
Call x the time that Kelly takes to change oil. If the wait time is charged to the customer, then, x must be less or equal than 20 minutes. If the fastest oil change that Kelly has ever done took 6 minutes, then, x will be greater or equal than 6. In mathematical terms,
Answer:
it is 500
Step-by-step explanation: