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3 years ago

Give an example of a repeating decimal where two digits repeat. Explain why your number is a rational number?

1 answer:

8 0

An example of a repeating decimal would be 6.78787878. a rational number is a number that can be represented a/b where a and b are integers and b isnt equal to 0, so a<span>ny decimal number that is repeating can be written in the form a/b with b not equal to zero so it is a rational number</span>

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One day a store sold 21 sweatshirts. white ones cost $9.95 and yellow ones cost $ 11.50. in all, $235.30 worth of sweatshirts

FromTheMoon [43]

For this problem you have yo set up two equations.

White shirts = w Yellow shirts = y

1st: w + y = 21
2nd: 9.95w + 11.50y = 235.30

Now we're going to do system of equations using substitution.

If w + y = 21, then y = 21 - w
If y = 21 - w, then you can substitute this in the second equation for y.

9.95w + 11.50(21 - w) = 235.30
9.95w + 241.5 - 11.50w = 235.30
-1.55w + 241.5 = 235.30
-1.55w = -6.2
w = 4, so 4 whites shirt were sold.

Now I'm finding out how many yellow shirts were sold using one of the two equations at the top.

w + y = 21
4 + y = 21
y = 17

So 17 yellow shirts were sold and 4 white shirts were sold.

5 0

3 years ago

Give me the answer pll

STatiana [176]

Product means multiply, a number means any variable so 6x is the answer

3 0

2 years ago

Tyler's mom purchased a savings bond for Tyler. The value of the savings bond increases by 4% each year. One year after it was p

Gemiola [76]

Answer:

The value of the bond when Tyler's mom purchased it was $150

Step-by-step explanation:

we know that

In this problem we have a exponential function of the form

$f(x)=a(b)^{x}$

where

a is the initial value (y-intercept)

b is the base

r is the rate

b=(1+r)

In this problem

r=4%=4/100=0.04

b=1+0.04=1.04

substitute

$f(x)=a(1.04)^{x}$

where

x is the number of years since the savings bond was purchased

f(x) is the value of the savings bond

For x=1

f(x)=$156

substitute

$156=a(1.04)^{1}$

Solve for a

$156=a(1.04)$

$a=\$150$

therefore

The value of the bond when Tyler's mom purchased it was $150

8 0

3 years ago

Davia draws a shape with 5 sides . two sides are each 5 inches long. two other sides are each 4 inches long. the perimeter of th

soldier1979 [14.2K]

The fifth side is 9 inches

5 0

3 years ago

A recipe for cake needs 2 and 1/4 cups of cake mix. You are

Yuri [45]

Answer:

1 1/8

Step-by-step explanation:

2 1/4/2

9/4 divieded by 2/1=9/8

or 1 1/8

8 0

3 years ago