Answer:
(1,3)
Step-by-step explanation:
2x-2=4x-y-1
subtract 2x on both sides
-2=2x-y-1
add y on both sides
y-2=2x-1
add 2 on both sides
y=2x+1
now we can just kinda plug and check.
if you plug in 1, you get 3, so A
I think the answer is 78 because more usually mean addition so 57+21=78
7/8=0.875
0.875 x 40= 35
Therefore, Kris has finished 35 questions.
Hope this helps.
X= 2.93
Or the blank is 2.93
Answer:
To calculate how many total miles Rachel runs per minute, setting up a unit rate, that is a rate with a denominator of 1, would be helpful.
Step-by-step explanation:
Use the current problem to determine a rate.
23 minutes/4 miles
Now, set up a unit rate.
1 minute/<em>x </em>miles = 23 minutes/4 miles
To solve for <em>x, </em>we can use simple division strategies. We divide 23 by 23 to receive 1 minute. Likewise, dividing the current milage by 23 would wield the correct unit rate. To do this, divide 4 by 23.
4/23 = 0.1739130434782609
Finally, simplify your answer to receive 0.17.
Therefore, Rachel runs ~0.17 miles per minute. (Note that this answer is only a rounded answer of her actual milage per minute)
