Answer:
x = 17
Step-by-step explanation:
2 + x = 19
Subtract 2 on both sides to isolate the variable
2 - 2 + x = 19 - 2
x = 17
Check
We can check by distributing the "x" with 17 since thats what we got as the value.
2 + x = 19
2 + 17 = 19
19 = 19
CORRECT
Hope this helped!
Have a supercalifragilistix = 17cexpialidocious day!
Answer:
x=1, y=-4. (1, -4).
Step-by-step explanation:
y=-7x+3
y=-x-3
-------------
-7x+3=-x-3
-7x-(-x)+3=-3
-7x+x=-3-3
-6x=-6
6x=6
x=6/6
x=1
y=-1-3=-4
Answer:
6.25-1.75
Step-by-step explanation:
Step-by-step explanation:
Monique had 6 dollars. She found 25 cents and then bought a book
25 cents = 0.25 dollars
Total dollar she had= 6 + 0.25= 6.25 dollars
Let x be the cost of a book
She ended up with 7 quarters. Convert quarter into dollars
1 quarter = 0.25 dollars
7 quarters = 7 times 0.25=1.75 dollars
So she ended up with 1.75 dollars
Amount she had at the beginning - the cost of book = amount ended up
Number of dollars spent on the book = Amount she had - amount ended
Number of dollars spent on the book=
6.25-1.75
Answer:
If you asked a lot of students from this particular university how many classes they are registered for, the average of classes will be 4.15.
Step-by-step explanation:
The expected value is the average of the discrete random variable in the long run. If an event occurs many, many times the average value of the outcomes gets closer to the expected value, and when the sample is big you get the expected value.
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