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Artyom0805 [142]
3 years ago
5

A penny, a nickel, a dime, and a quarter are tossed. What is the probability of obtaining at least one head on the tosses?

Mathematics
1 answer:
Anton [14]3 years ago
5 0
The penny can land two ways. The nickel can land two ways. The dime can land two ways. The quarter can land two ways. The total number of ways that all of them can land is (2x2x2x2)= 16 possibilities. Only ONE result shows no heads . . . TAIL-TAIL- TAIL-TAIL. All of the other 15 possibilities include at least one HEAD. So the probability is 15/16 = 93.25% .
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Which equation requires the multiplication property of equality to be solved?
alexira [117]
Option 1: 6a = 420 requires division property of equality to be solved
Step-by-step explanation:
Solving an equation means to find the value of a variable by isolating the variable on one side of the equation.
We will see all the options one by one.
Option 1:

In this option, 6 is multiplied with the variable so we have to divide the whole equation by 6 to find the value of a.
So we will use "Division property of Equality"
Dividing both sides by 6




pls help me get Brainlyest
6 0
3 years ago
Read 2 more answers
Simplify 2(a+5)−3(5a−4)
Nutka1998 [239]

Answer:

-13a+22

Step-by-step explanation:

we have

2(a+5)-3(5a-4)

step 1

Apply the distributive property  both terms

2a+2(5)-3(5a)+3(4)

2a+10-15a+12

step 2

Combine like terms

(2a-15a)+(10+12)

(-13a)+(22)

-13a+22

4 0
3 years ago
A picture has the ratio of 2/3 inch per 1/2 cm. What is the unit rate inches per centimeter?
Readme [11.4K]

Answer:

4/6

Step-by-step explanation:

x2

hope it helps

4 0
3 years ago
Name: ________________________ If x  4 and y  3, what is the value of x  3y2
Olenka [21]
I don't know the meaning of 'square' in your question.but i think you had better make it more clear .
6 0
3 years ago
Please someone help this question is hurting my small brain. ​
ki77a [65]
22.4

If the bottom side is 20 cm, then each line BE and CE would each be 10 cm.

Now, just focus on the top left triangle. You have one side with 20 cm, and the other side with 10 cm. You are left with the hypotenuse, which you need to figure out the value of.

Since this is a right triangle, you can use the Pythagorean theorem -> a^2 + b^2 = c^2 where c is the hypotenuse.

20^2 + 10^2 = c^2
400 + 100 = c^2
500 = c^2
22.36 = c
5 0
3 years ago
Read 2 more answers
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