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bija089 [108]
3 years ago
9

Jacob has 96 books to stack on library shelves. Each shelf can hold 9 books. How many shelves will he need to stack all the book

s? 55 pts
Mathematics
2 answers:
Nostrana [21]3 years ago
8 0
11 shelves because 9 times 11 is 99 books and he only needs to put 96 books up 10 shelves wouldn't be enough and 12 would be to many
Irina18 [472]3 years ago
4 0
90/9=10=10 shelf
R6=1 shelf
you need 11 shelves

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PLEASE HELP WILL MARK BRAINLIEST!!
Gre4nikov [31]

Answer:

Explanation below.

Step-by-step explanation:

1. a. \sqrt{x} =12

  b. \sqrt{x} ^{2}=12^{2}

  c. x=144

2. a. \sqrt{x^{2} } =\sqrt{196}

   b. x= 14

3.  

\sqrt{x} -4 +4= 8+4\\\sqrt{x} =12\\x= 3.46410161514  \\or  \\2\sqrt{3}

4.

2(x^{2} +3)=398\\x^{2} +3= 199\\x^{2} =196\\x=14

7 0
3 years ago
Read 2 more answers
1. If one side of the square is 12in, what is the perimeter and area of the parallelogram?
gayaneshka [121]

Answer:

Not sure for 1. Area might be 144. Perimeter might be 50. I got perimeter by finding slant height of the parallelogram and then substituting it to the perimeter formula (P=2(a+b) where a is a side and b is a base). I found area by just multiplying 12*12 since to find area of parallelogram, it is base x height.

2. 45, 135, 135

Step-by-step explanation:

2. We know that an isosceles trapezoid has congruent base angles and congruent upper angles, so if one base angle measures 45 degrees, the other base angle will also be 45 degrees.

For the upper angles, we know that diagonal angles are supplementary, so 180- base angle 1 (45 degrees)= upper angle 1

180-45=upper angle 1

upper angle 1 = 135 degrees

Mentioned above, upper angles are congruent, so upper angles 1 and 2 will be 135 degrees.

Check: The sum of angles in a quadrilateral is equal to 360 degrees. We can use this to check if our answer is correct.

135+135=270 degrees (sum of upper angles)

45+45= 90 degrees (sum of base angles)

270+90=360

So the angle measures of the other three angles are 135, 135, and 45.

Hope this helps!

7 0
2 years ago
Hey uhm.. im not super good at math so i need help with this : 0.45/4.2 = x/14 solve for x
Alina [70]

Answer:

x= 1.5

Step-by-step explanation:

4 0
3 years ago
Help please it's a math assignment
expeople1 [14]
I'm pretty sure it's graph A. I apologize if it's wrong hope this helped.
3 0
3 years ago
If I walk 3/4 mile to work and 3/4 mile home each day, how long will it take me to walk 3 miles?
anastassius [24]

Answer:

2 days

Step-by-step explanation:

for a day you walk 1.5 mile (0.75 + 0.75)

so it will only take 2 days

6 0
3 years ago
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