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stiv31 [10]
3 years ago
12

Sandy has 31 books in her library. She bought several books at a yard sale over the weekend. She now has 59 books in her library

. How many books did she buy at the yard sale
Mathematics
1 answer:
Tatiana [17]3 years ago
8 0
28 books. 59(current books) - 31(past books) equals the amount of books Sandy bought, which is 28 books. Hope it helped
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Use the information in the diagram to determine the height of the tree. The diagram is not a scale
dusya [7]
In the given diagram, we can note that the tree divides the hypotenuse of the triangle as well as the side where the tree is based into halves.

In a triangle, when a line is drawn joining between the midpoints of two sides, this line is always parallel to the third side and equals half its length.

Applying this concept to the given diagram here, we will find that the tree is joining the midpoints of two sides of the triangle. this means that the tree is parallel to the building and the height of the tree is half the height of the building.

Therefore:
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6 0
3 years ago
When Adam got a new locker at the gym, he had to choose a password. For this locker, a password consists of
joja [24]

Given:

Adam's locker has a password that consists of 4 non-repeated letters from A - Z.

To find:

The number of different passwords.

Solution:

Total number of letters from A - Z is 26.

So, the number of selecting a letter for first place is 26.

The passwords consists non-repeated letters. So, the remaining numbers is 26-1=25.

The number of selecting a letter for second place is 25.

Similarly,

The number of selecting a letter for third place is 24.

The number of selecting a letter for fourth place is 23.

The total number of possible different passwords is:

26\times 25\times 24\times 23=358800

Therefore, the total number of different passwords is 358800.

4 0
3 years ago
If the length of one leg of a right triangle is 16 and the length of the hypotenuse is 2 more than the length of the other leg,
Arturiano [62]
Let the length of one leg be x then another leg is (x+2)

According to Pythagoras theorem,
x^2 + (x+2)^2=16^2
=> x^2 + 2x - 126 =0
=>x= √(126 - 1) = 10.225
By sreedharchaya's formula
6 0
3 years ago
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Pavlova-9 [17]

Answer:

They are 5 I think

Step-by-step explanation:

It should be correct

3 0
3 years ago
What is the answer to 90 is 45% of what?
ANTONII [103]
..... 40.5 ...............
7 0
3 years ago
Read 2 more answers
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