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valentinak56 [21]
3 years ago
7

Find the probability of spinning an even number and rolling an odd number?

Mathematics
1 answer:
laiz [17]3 years ago
3 0

Answer:

The probability of spinning an even number is 1:2, or 50 percent. The probability of rolling an odd number is also 1:2, or 50 percent.

Explanation:

On most number spinners, there are an equal number of odds and evens. This is the same for a dice, since the numbers range from 1-6; 3 odd numbers and 3 even numbers.

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Justin bought some yarn from his favorite craft store. He can make 1 scarf with 3/5 of a ball of yarn. If he purchases 15 balls
Nadya [2.5K]

Answer:

I think the answer is 25and I did the math

6 0
3 years ago
Write 3.9 as a mixed number?
LiRa [457]

Answer:

3 9/10

Step-by-step explanation:

First the "whole number" part is 3.

The decimal part is 0.9. To convert that, keep the 9. Since the 9 is in the tenths place, it is 9/10.

Add them together: 3+9/10= 3 9/10

Final answer 3 9/10

Hope this helps

4 0
3 years ago
If the length of a rectangle is decreased by 4 cm and the width is increased by 5 cm, the result will be a square, the area of w
erastova [34]
Let x represent the side length of the square. Then
  (x +4)*(x -5) +40 = x^2
  x^2 -x -20 +40 = x^2
  20 = x

The rectangle is 15 cm by 24 cm, and its area is 360 cm^2.
5 0
3 years ago
Evaluate 18 + 4 ÷ 2 − 8.<br><br> 2<br> 8<br> 12<br> 3
irina [24]
12

Working;
First evaluate the division;
4÷2=2
Work on addition;
18+2= 20
work on subtraction;
20-8=12

8 0
3 years ago
What is the value of y^-5 and x^-3 for x = 2 and y = -4?
Ilya [14]
a^{-n}=\dfrac{1}{a^n}\\\\x^{-3}=\dfrac{1}{x^3};\ y^{-5}=\dfrac{1}{y^5}\\\\\dfrac{y^{-5}}{x^{-3}}=\dfrac{1}{y^5}:\dfrac{1}{x^3}=\dfrac{1}{y^5}\cdot\dfrac{x^3}{1}=\dfrac{x^3}{y^5}\\\\x=2;\ y=-4=-2^2\\\\\dfrac{x^3}{y^5}=\dfrac{2^3}{(-2^2)^5}=\dfrac{2^3}{-2^{2\cdot5}}=\dfrac{2^3}{-2^{10}}=-\dfrac{1}{2^7}=\boxed{-\dfrac{1}{128}}\to\fbox{C.}
7 0
4 years ago
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