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aliina [53]
3 years ago
10

Ruben bought 6 new books for his collection by 12% How many books did he have before the purchase

Mathematics
2 answers:
lilavasa [31]3 years ago
8 0
He had 50 books before 
Nonamiya [84]3 years ago
3 0
50
---------------------
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You need four pieces of string that are 2.25 feet long to make bracelet. you have 20 feet of string.
-Dominant- [34]
In the way you asked the question, the answer is already there but I am going to assume u are asking how many bracelets you can make which would then put the answer at almost 9 bracelets.
8 0
4 years ago
HELP ME PLEASE thank you so much i’m so lost
valkas [14]

Answer:

Step-by-step explanation: 3x-5+13+6= 3x+1+13= 3x+14(simplified) If you graph this the y intercept is 14  the growth is 3. I don't think it can be solved. 3x is not compatible when solving for are of a triangle unless you are trying to solve for x and you already have the area. Yes this is insolvable

6 0
3 years ago
Angle bcd is a circumscribed angle of circle a. What is the length of line segment ac?
enyata [817]

Step-by-step explanation:

Answer:

The length of segment AC is 10 units ⇒ 1st answer

Step-by-step explanation:

Look to the attached figure

In circle A

∵ AB is a radius

∵ BC is a tangent to circle A at B

- The radius and the tangent are perpendicular to each other

    at the point of contact

∴ AB ⊥ BC at point B

∴ m∠ABC = 90°

In ΔABC

∵ m∠B = 90°

∵ AB = 8 units

∵ BC = 6 units

- By using Pythagoras Theorem (Square the hypotenuse is

    equal to the sum of the squares of the other two sides of

     the triangle)

∵ (AC)² = (AB)² + (BC)²

∴ (AC)² = (8)² +(6)²

∴ (AC)² = 64 + 36

∴ (AC)² = 100

- Take √ for both sides

∴ AC = 10 units

The length of segment AC is 10 units

follow me plzzz

4 0
3 years ago
North side dormitory just purchased a new DVD player on sale for $416. The sale price was 80% of the original price. What was th
Diano4ka-milaya [45]
100 - 80% = 20 %
20% = $416
416 x 5 = $2080 = 100%
7 0
3 years ago
1. the sum of the first n odd positive integers is 64. what is the value of n ?
77julia77 [94]

Step-by-step explanation:

1. 64=1+3+5+7+9+11+13+15 that is a total of 8 odd numbers so n=8

2.((new-old)/old)×100%=percentual difference

so ((new-$55)/$55)×100%=20%

new-$55=$55×0.2

new=$55+$55×0.2=$66

3 0
4 years ago
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