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jennsou
05.02.2020 •
Mathematics
Ateacher has a box of pens and pencils. there are 8 more pencils than pens. after the students take 1 pen and 5 pencils from the box, there are 26 pens and pencils left in a box. how many pens are in the box now? how many pencils?
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Ответ:
Pens : x
Pencils: x+8
Total: 2x+8
Student takes 1 pen and 5 pencils.
Remainder: 2x+8 - 5 -1 = 2x+2
2x+2 = 26
2x= 24
x = 12 (original no. of pens)
x+ 8 = 20 (original no of pencils)
There are 12 pens at first and 20 pencils.
After 1 pen is taken, 11 pens are left.
After 5 pencils are taken, 20-5=15 pencils are left.
Ответ:
D. (116)
Step-by-step explanation:
The angles are congruent. So, we can set them equal to each other.
4x = 6x - 58
58 = 2x
x = 29
Now plug it in for x.
4(29) = 116