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A silk ribbon costs $5.60 for 0.8m. How much does 3.25m of this silk ribbon cost?

Varvara68 [4.7K]

We can first find how much the ribbon cost for 1m by setting an equation.

Let $y be the cost for 1m:

0.8y = 5.60
y = 5.60 ÷ 0.8
y = 7

Now that we know 1m of ribbon cost $7, we can proceed to find how much 3.25m ribbon cost by mutiplying the length with the cost:

7 x 3.25
=$22.75

Therefore the answer is $22.75.

Hope it helps!

8 0

3 years ago

Read 2 more answers

Please help asap!! I'll give you brainliest!!

Serjik [45]

Answer:

-4

Step-by-step explanation:

To find the slope, you can use the formula y2-y1/x2-x1. Plugin any set of values. Say 13 is y2, and 5 is y1. 13-5=8. We now have 8/x2-x1. You have to use the x-values of the y-values that you already used. -2 is x2 and 0 is x1. -2-0=-2. 8/-2 = -4.

4 0

4 years ago

You joined an online coupon club. You earned 100 bonus points just by signing up. Each month you use the site, you earn another

Blababa [14]

So,

I'm assuming you want me to make a formula for figuring your points after any given month assuming that you use the site at least once a month and you don't spend your points.

After one month, you will have your base 100 points plus an additional 10 points.

100 + 10 = 110

After two months, you will have gained an additional 10.
110 + 10 = 120

We can put this into a function, where P is your points, and m is the number of months you use the site.

P(x) = 100 + 10m

So after 500 months, you will have:

P(x) = 100 + 10(500) = 5100 points!

This is identical with:
y = 100 + 10m

and

y = 10m + 100

So this can be graphed as a linear equation/function with a y-intercept of 100 and a slope of 10/1.

8 0

3 years ago

Read 2 more answers

PLEASE HELP I'LL GIVE BRAINLIEST!!!!!!!!! According to the Census Bureau, in 2014 California had an estimated population of 3.88

lutik1710 [3]

Answer:

The population of California is $3.3216 * 10^{7}$ more than the population of Wyoming.

Alternatively, the population of California is $6.64 * 10^{1}$ times the population of Wyoming.

Step-by-step explanation:

The first part is to take the numbers out of the scientific notation. The estimated population of California is 38,800,000, and the population of Wyoming is 584,000.

Not that we've done that, let's start with the first part of the problem.

"The population of California is __________ more than the population of Wyoming."

This is a statement of subtraction, because it's not asking how many TIMES more. So, we subtract Wyoming's population from California's population.

$38,800,000 - 584,000 = 38,216,000.$

Putting that number into scientific notation is easy: move the decimal to the place in the number where there will only be one number in front of the decimal: 3.3216. How many number slots until you have only one number in front of the decimal? 7. So, we know that the power of 10 is going to be 7. So, the first part of the question answers to:

$3.8216 * 10^{7} .$

Now for the second part.

"Alternatively, the population of California is _________ times the population of Wyoming."

This is a problem of division. The question is asking us to divide California's population by Wyoming's population.

$\frac{38,800,000}{584,000} = 0.664383562 * 10^{2} .$

We need to have one number in front of the decimal point, so we move it behind the first 6, giving us 6.64. Because we did this, we need to bump the exponent from 2 to 1, leaving us with:

$6.64 * 10^{1}.$

So, the answer to the question is:

1. $3.8216 * 10^{7}.$

2. $6.64 * 10^{1}.$

Hope this helped you, and I hope you get a perfect score!! :)

5 0

3 years ago

How can a graph help you determine an exponential model is appropriate for a data set? Explain

I am Lyosha [343]

The graph of the data set will help you to understand if the data is displayed in the form of an exponential model. Example: if the data (when graphed) is similar in shape and growth to that of the graph of f(x)=e^x, then it could be deemed helpful.

5 0

3 years ago