Let x be the number of students that like both algebra and geometry. Then:
1. 45-x is the number of students that like only algebra;
2. 53-x is the number of students that like only geometry.
You know that 6 students do not like any subject at all and there are 75 students in total. If you add the number of students that like both subjects, the number of students that like only one subject and the number of students that do not like any subject, you get 75. Therefore,
x+45-x+53-x+6=75.
Solve this equation:
104-x=75,
x=104-75,
x=29.
You get that:
- 29 students like both subjects;
- 45-29=16 students like only algebra;
- 53-29=24 students like only geometry;
- 24+6=30 students do not like algebra;
- 16+6=22 students do not like geometry.
The correct choice is D.
3/4 x 6 = 18/4 = 4 1/2
She eats 4 1/2 bags of carrots in 6 weeks.
X = shorts and y = socks
2x + 3y = 33
x + 5y = 27.....multiply by -2
------------
2x + 3y = 33
-2x - 10y = - 54 (result of multiplying by -2)
------------------add
-7y = - 21
y = -21/-7
y = 3
x + 5y = 27
x + 5(3) = 27
x + 15 = 27
x = 27 - 15
x = 12
so shorts (x) cost $12 and socks (y) cost $ 3 per pack
Answer:
I´ll say 75% because basically well..lets say that there are 400 animals then you divide them all to 100 so there is 100 animals in each box and lets say 100 animals = 25% so we add another animal and that gives us 50% then another and 75% so you get wear im going with this right?
Step-by-step explanation:
But the answer is 75%
