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2 years ago

4,5,10,8,4,8,7,6 range

Mathematics

2 answers:

Nostrana [21]2 years ago

6 0

Answer:

10-4=6

Step-by-step explanation:

The range is the difference between the biggest and smallest number. In this case, 10 is the biggest number and 4 is the smallest. So we do 10-4, which gives us 6, so 6 is the range.

kati45 [8]2 years ago

3 0

10 meaning the biggest number and then subtract by 4 since it’s the lowest number and you get 6.

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Which of the following should you do first when solving the equation 2x-7=3x-2(x+8)

Georgia [21]

Answer:

multiply 3x-2(x+8)

Step-by-step explanation:

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2 years ago

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Please help me with this.A rectangular field is

Karolina [17]

First, let's get the perimeter of the rectangle:
$P=2W+2L$
$P=130m+210m$
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Then, let's get the area of the bigger one:
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Then let's try using a rectangle with a smaller ratio:
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If you used a square:
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5 0

3 years ago

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How do you find direct variation. I’m having trouble understanding some of these examples.

Rufina [12.5K]

Direct variation is a relation that has the form

y = kx

where k is the constant of proportionality.

If you are told that a relation is a direct proportion, and you are given one data point, you can find k. The you can write the equation of the direct relation.

Here is an example.
The price of gasoline follows a direct variation.
John bought 5 gallons of gas and paid $15.
a) Write an equation for the relation.
b) Using the relation you found, how much do 13.8 gallons cost?

Solution:
Since the relation is a direct variation, it follows the general equation of a direct variation:

y = kx

We are given one data point, 5 gallons cost $15.
We plug in 5 for x and 15 for y and we find k.

y = kx
15 = k * 5
k = 3

Now that we know that k = 3, we rewrite the relation using our value of k.

y = 3x

This is the answer to part a).

Part b)

We use our relation, y = 3x, and we plug in 13.8 into x and find y.

y = 3x

y = 3 * 13.8

y = 41.4

The price of 15 gallons of gas is $41.40.

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3 years ago

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hammer [34]

Answer:

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Step-by-step explanation:

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2 years ago

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To help with her retirement savings, Donna has decided to invest. Assuming an interest rate of 3.59% compounded quarterly, how m

cricket20 [7]

Answer:

We get the value of Principal amount i.e initial investment = $61640

Step-by-step explanation:

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Compounded quarterly n = 4

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Time t = 18 years

We need to find initial investment i,e Principal Amount P

The formula used is: $A=P(1+\frac{r}{n})^{nt}$

Putting values and finding P

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So, We get the value of Principal amount i.e initial investment = $61640

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2 years ago