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3 years ago

I need these answers, and I need them explained..

Mathematics

1 answer:

deff fn [24]3 years ago

5 0

Answer:

1.)96 pages

2.)5980 square ft per hour

3.)$13 per pound

4.)$12.72 per pound

5.)Company B offered the best deal

Step-by-step explanation:

1.)24*4=96

2.)4485/3=1495 then 4485+1495=5980 square ft

3.)32.50 / 2 1/2=13

4.)35 / 2 3/4=140/11= 12.72 rounded to the nearest hundredth

5.)Company B's price per pound is less than company A's

Hope this helps :)

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In the last election, 60% of the class members voted. If the class has 120 members, how many members voted in the last election?

horrorfan [7]

That is a pretty apathetic class. now if you want to to this one, it is mental math. 60% is = to 50% +10%
50% of 120 is 60 and 10% of 12
60+12 is 72
the answer is 72 or A
hope this helps

6 0

4 years ago

Read 2 more answers

Help help help please

kondaur [170]

Answer:

<h2>50°, 60°, 70° (the second answer)</h2>

Step-by-step explanation:

The sum of the angles in a triangle = 180°

We can use the equation:

2x + 80 + 25 - 5x + 6x + 90 = 180

Combine like-terms:

2x + 6x - 5x = 3x

80 + 25 + 90 = 195

195 + 3x = 180

Subtract 195 from both sides:

3x = -15

Divide both sides by -3 to isolate x:

x = -5

Now that you've solved for x, you can replace x with -5 in the equation for each angle.

2(-5) + 80 = 70°

6(-5) + 90 = 60°

25 - 5(-5) = 50°

8 0

3 years ago

Need help with this continuity problem.

ira [324]

In order to be continuous everywhere, we only need to satisfy continuity at $x=10$ . For that to happen, we need to have

$\displaystyle\lim_{x\to10^-}f(x)=\lim_{x\to10^+}f(x)=f(10)$

By the function's definition, $f(10)=2(10)-2=18$ . Compute the limits:

$\displaystyle\lim_{x\to10^-}f(x)=\lim_{x\to10}2x-2=18$

$\displaystyle\lim_{x\to10^+}f(x)=\lim_{x\to10}-8x+b=-80+b$

So we must have

$18=b-80\implies b=98$

3 0

3 years ago

I have a stat class review and what would be the letter choice for this scatter plot?

Sonja [21]

Answer:

C. 4.5

Step-by-step explanation:

If you reference the scatter plot, you see that when x=3, y=4.5. Therefore, the answer is 4.5.

8 0

4 years ago

4. Nine fruit juice bottles contain 4 1/2 litres of fruit juice between them.

brilliants [131]

Answer:

2 $\frac{1}{2}$ litres or 2.5 litres

Step-by-step explanation:

From the question, 9 fruit juice bottles contain 4 $\frac{1}{2}$ litres of fruit juice. Therefore, to find how many litres of fruit juice would be contained in 5 fruit juice bottles, you multiply 5 by 4 $\frac{1}{2}$ litres and you divide the product by 9.

i.e. Let the quantity of the fruit juice for 5 bottles be x.

9 juice bottles ===> 4 $\frac{1}{2}$ litres

5 juice bottles ===> x

∴x = $\frac{5 * 4\frac{1}{2} }{9} litres$

x = $\frac{5 * 4.5}{9} litres$

x = $\frac{22.5}{9} litres$

x = 2.5 litres or 2 $\frac{1}{2}$ litres

Hope this helps!!!

3 0

3 years ago