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Ahat [919]
3 years ago
8

I need help on this problem​

Mathematics
1 answer:
Mamont248 [21]3 years ago
6 0

Answer:

80

Step-by-step explanation:

because you have to do (11+11)+(9+9)+(10+10) and you would get 22,18,20 and add all together and get 80 because you have to do 22+18=40 then add the remaining 20 and you would get 80

You might be interested in
Rationalize the denominator of the fraction: √5/√8 - √3
Lana71 [14]

Answer:

Step-by-step explanation:

Remark

The editor must have brackets put around the denominator when there are 2 terms.

That means I think the question is (√5) / (√8 - √3). If this is incorrect, leave a note.

To rationalize the denominator, you must multiply numerator and denominator by the conjugate  (√8 + √3).

Solution

√5 *  (√8 - √3) /  ( (√8 - √3) *  (√8 + √3)  )  

I don't think there is any point in removing the brackets in the numerator. Just leave it.

The denominator is a different matter.

denominator = ( (√8 - √3) *  (√8 + √3)  )

√8 * √8 = 8

√8 * √3 = √24

- √3 * √8 = - √24

-√3 * √3 = - 3

Take a close look at the 2 middle terms. They cancel out because one of them is plus and the other minus.

What you are left with is 8 - 3 = 5

So the final answer is

√5 *  (√8 - √3)

=============

5

6 0
2 years ago
Company A has three times as many customers as company B while company C has 10 customers more than company B. Let x represent t
Lostsunrise [7]

Answer:

x+2x+x+10

Step-by-step explanation:

Company A= x

Company B =2x

Company C =x+10

5 0
2 years ago
An airline offers daily flights between Chicago and Denver. The total monthly cost C (in millions of dollars) of these flights c
Ira Lisetskai [31]

Answer:

   6250

Step-by-step explanation:

Fill in the given number and solve for x. The answer is 1000x, rounded.

  C=\sqrt{0.2x+1}\\\\1.5=\sqrt{0.2x+1} \quad\text{use given value for C}\\\\2.25=0.2x+1 \quad\text{square both sides}\\\\1.25=0.2x \quad\text{subtract 1}\\\\6.25=x \quad\text{multiply by 5}

x is in thousands, so 6.25×1000 = 6,250 passengers flew in June.

8 0
3 years ago
Consider the quadratic function f(x) = –2x2 5x – 4. the leading coefficient of the function is?
evablogger [386]

Answer:

\text{-2 is the leading coefficient of the quadratic equation }f(x)=-2x^2+5x-4

Step-by-step explanation:

Given the quadratic function

f(x)=-2x^2+5x-4

we have to find the leading coefficient of given quadratic equation.

\text{The general form of quadratic equation is }ax^2+bx+c=0

The coefficient of x^2 i.e a is known as the leading coefficient.

Comparing given equation with the standard equation, we get

a=-2

\text{Hence, -2 is the leading coefficient of the quadratic equation }f(x)=-2x^2+5x-4

3 0
3 years ago
Read 2 more answers
Sam bought 2gallons of milk at the supermarket how many quarts of milk did he buy
Scilla [17]
2 gallons is equal to 8 Us quarts (i need 20 words to answer, that is what this is)
5 0
3 years ago
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