All categories

3 years ago

1. A bag has tiles with two-digit numbers (10-99) on them. A random tile is 4 points

Mathematics

2 answers:

Hunter-Best [27]3 years ago

4 0

Answer:

Correct option: Second one -> 1/90

Step-by-step explanation:

We have numbers from 10 to 99.

First we need to find how many numbers there are, and we can do that subtracting 99 from 10 and then we sum 1, as the values 10 and 99 are also included:

Number of tiles = 99 - 10 + 1 = 90

If we have 90 tiles, and only one of them has the value 32, the probability of drawing a 32 is:

P = 1/90

Correct option: Second one

stiks02 [169]3 years ago

3 0

Answer:

Step-by-step explanation:

The probabilty is defined as the ratio between the total events and the total outcomes possible.

In this case, we have 90 total outcomes, which are all two-digit numbers. The event is only one, the number 32. Using the definition, we have

$P=\frac{1}{90}$

Therefore, the right answer is B.

You might be interested in

if -2 is a root of the equation 3x2 +7x + p = 0, find the values of k for which the roots of the equation x2 + k(4x + k - 1) + p

goblinko [34]

Answer:

first 0ne

Step-by-step explanation:

4 0

3 years ago

What is 14x+2y=6 -7x-2y=-13

MissTica

14x+2y=6 (1)
-7x-2y= -13 (2)

Multiply (2) by 2, we have:
-14x-4y= -26 (3)

Take (1)+(3), we can solve and get x= -1, y= 10~

5 0

3 years ago

Which fractions are equivalent to 10/12? Select each correct answer. 2/3 5/6 12/24 30/36 50/60 60/84

Yuri [45]

Answer:

[See Below]

Step-by-step explanation:

✦ Turn into decimals:

$\frac{10}{12}=0.83$

$\frac{2}{3} =0.67$

$\frac{5}{6} =0.83$

$\frac{12}{24} =0.5$

$\frac{30}{36} =0.83$

$\frac{50}{60} =0.83$

$\frac{60}{84} =0.71$

So $\frac{10}{12}$ ≈ $\frac{5}{6},\frac{30}{36},and,\frac{50}{60}$ .

~<em>Hope this helps Mate. If you need anything feel free to message me. </em>

4 0

3 years ago

A plastic box has a length 4 cm longer than its width. The area of the rectangular top of the box is 77 square cm. Find the leng

finlep [7]

Answer: the length is 11 cm.

The width is 7 cm.

Step-by-step explanation:

Let L represent the length of the rectangular plastic box.

Let W represent the width of the rectangular plastic box.

The area of the rectangular top of the box is 77 square cm. This means that

LW = 77- - - - - - - ;- - - -1

The plastic box has a length 4 cm longer than its width. This means that

L = W + 4

Substituting L = W + 4 into equation 1, it becomes

(W + 4)W = 77

W² + 4W = 77

W² + 4W - 77 = 0

W² + 11W - 7W - 77 = 0

W(W + 11) - 7(W + 11) = 0

W - 7 = 0 or W + 11 = 0

W = 7 or W = - 11

Since the width cannot be negative, then W = 7cm

L = 77/7 = 11 cm

4 0

3 years ago

Does 12/15 and 14/17 form a proportion?

adell [148]

Answer:

yes they form a proportion

8 0

2 years ago