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3 years ago

Han has 4 dimes. What percent of a dollar does Han have?

Mathematics

1 answer:

Mama L [17]3 years ago

7 0

Answer:

40%

Step-by-step explanation:

4 dimes = 40 cents

1 dollar = 100 cents

40 $\frac{40}{100}$ = 40%

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Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Write and solve an equa

MariettaO [177]

Answer:

Steven is 15 and one half years old now

Step-by-step explanation:

Linear equations

Sometimes we need to know the value of a variable in a given equation and that variable is given as a polynomial of degree 1. Solving for that variable means isolating it and replacing the other known values

Steven was 7 years old eight and one-half years ago. If we call x as the actual age of Steven, his age eight and one-half years ago was

$x-8\frac{1}{2}$

We know he was 7 years old then, so

$x-8\frac{1}{2}=7$

We need to know his actual age, so let's solve for x, adding $8\frac{1}{2}$ to each side of the equation

$x-8\frac{1}{2}+8\frac{1}{2}=7+8\frac{1}{2}$

Simplifying

$x=15\frac{1}{2}$

Steven is 15 and one half years old now

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3 years ago

Mitch is buying candy bars for his friends he wants to give 2 bars to each friend and he wants to have 10 spare bars he can affo

Brut [27]

Answer:

e can treat 7 friends

Step-by-step explanation:

2f+10=24

2f=24-10=14

f=14/2=7

6 0

3 years ago

Mr. Suh puts $1,500.00 into savings bonds that pay a simple interest rate of 2.5%. How much money will the bonds be worth at the

ale4655 [162]

Answer:

i have no idea

Step-by-step explanation:

5 0

3 years ago

You walk 1.5miles in a half an hour. What is your average speed?

katovenus [111]

Answer:

1/10 th of a mile every minute

3 0

3 years ago

Read 2 more answers

Prove the trigonometric identity! Please help!! 50 Points!

Rudiy27

Answer:

Step-by-step explanation:

For simplicity I will substitue $x$ for β.

$1-sin(2x)=(cosx-sinx)^2\\1-2sin(x)cos(x)=cos^2x-2sin(x)cos(x)+sin^2x\\1=cos^2(x)+sin^2(x)\\1=1$

In the first step I used the identity

$sin(2x)=2sin(x)cos(x)$

And I factored out $(cosx-sinx)^2$

Then it's just simple algebra to cancel till the 3rd step where we used another identity derived from the Pythagorean Theorem.

$cos^2(x)+sin^2(x)=1$

That's it!

3 0

2 years ago