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castortr0y [4]
3 years ago
8

There are 30 puzzle books on a shelf. The number of puzzle books is 25 of all the books on the shelf.

Mathematics
2 answers:
Harrizon [31]3 years ago
8 0

Answer:

75

Step-by-step explanation:

Softa [21]3 years ago
6 0

The total number of books on the shelf is 12 books

Given the following parameters

Total number of puzzle books on the shelf = 30 books

If the number of puzzle books is 25 of all the books on the shelf, the total number of books on the shelf is expressed as:

= 2/5 of 30

= 2/5 * 30

= 2 * 6

= 12

Hence the total number of books on the shelf is 12 books

Learn more here: brainly.com/question/13885389

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Question 8 (1 point)<br> Find the perimeter of the triangle.
Romashka [77]

Answer:

D

Step-by-step explanation:

its the closest to the answer i got so that must be it

6 0
2 years ago
Shanley would like to give $5 gift cards
Serjik [45]

Answer:

$5x + $4y ≤ $120

let x = 10

y = 5

$70  ≤ 120

Step-by-step explanation:

Note that

> means greater than

< means less than

≥  means greater or equal to

≤ means less than or equal to

the total amount Shanley has is $120. She can spend less than this amount or the amount exactly. So, the inequality sign to be used is ≤

$5x + $4y ≤ $120

let x = 10

y = 5

(50) + 20  ≤ 120

$70 ≤  120

4 0
3 years ago
Which phrase best descubes the translation from the graph y = (x - 5)2 + 7 to the graph of y = (x + 1)2 - 2?
Ber [7]

Answer:

"6 units left and 9 units down"

Step-by-step explanation:

Suppose a function is given in this form:

y=(x-a)^2+b

This is the parent function y = x^2

  • translated a units right (left if there was a + before a)
  • translated b units up (down if there was a - before b)

Now, to go from  y=(x-5)^2+7  to  y= (x+1)^2-2 , we can see that:

  • first function is 5 units right and 2nd one is 1 unit left, so there is a horizontal translation of 6 units left
  • first function is 7 units above and 2nd one is 2 units down, so there is a vertical translation of 9 units down

Thus, "6 units left and 9 units down" is the transformation(translation).

6 0
3 years ago
A police officer investigating a car accident finds a skid mark of 115 ft in length.
Minchanka [31]

Answer:

Speed of car = 49 mph (Approx.)

Step-by-step explanation:

Given:

Length of skid marked = 115 ft

Formula for skid mark = S = √21d

Where d = Length of skid marked

Find:

Speed of car

Computation:

Speed of car = √21d

Speed of car = √21(115)

Speed of car = √2,415

Speed of car = 49.1426

Speed of car = 49 mph (Approx.)

7 0
3 years ago
Find the limit of the function by using direct substitution. limit as x approaches zero of quantity x squared plus one.
katen-ka-za [31]
Direct substitution allows us to put the limit value directly into he equation in question.
\lim_{x \to 0}  (x^{2} +1) =  (0^{2}+1)=1
So the answer is 1
5 0
3 years ago
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