MATHEMATICS MIDDLE SCHOOL

Charles is going to buy 3 computer tables for $390. If he pays the same rate, how much would it cost for 8 computer tables?

Answers

Answer 1
Answer: 3tables/$390

390/3= $130 per table

$130*8=$1040

Related Questions

PLEASE HELP I GIVE THANKS
The Gonzalez family is taking a cruise that costs $3,082.24 for a family of four. How much does it cost perperson?
One and a half x + 3/4 x equals 5/8
Complete the statements about the two cones. The volumes of the cones are equal when . If a > b, then the cross-sectional area of cone A is the cross-sectional area of cone B at every level parallel to their respective bases.
How do I figure out these questions?Could you please teach me and give me examples? Examples with the answer and why it is would also be appreciated!1) How tall are Sally and Anna if Sally is 0.1 m taller than Anna and their combined height is 3.16 metres?Sally _ Anna _2) Find these simple quantitiesa. 1/5 of $50b. 10% of $40Thank you!

Emma drew a polygon with interior angles that added up to 540°. Each interior angle of her polygon measured 108°. What figure did she draw?A. pentagon
B. hexagon
C. heptagon
D. octagon

Answers

Answer:

its A.

Step-by-step explanation:

540÷5=108

Pentagon means 5. I hope this helps!

Answer:

a

Step-by-step explanation:

What are the coordinates of the midpoint line segment for (4,4 ) and (0,5)

Answers

Answer:

  (2, 4.5)

Step-by-step explanation:

The midpoint is the average of the end points.

  M = (A + B)/2

  = ((4, 4) + (0, 5))/2

  = ((4+0)/2, (4+5)/2)

  = (2, 4.5)

Um help! how do I do this?

Answers

1/2 t-4(2+t)=20
1/2 t-8-4t=20
least common multiple=2
t-16-8t=40
-7t=40+16
-7t=56
t=56/-7=-8

Answer: t=-8

To check
-8/2 - 4(2-8)=-4-4(-6)=-4+24=20
You do it just exactly as the question says:  Take one choice,
substitute it in place of 't' in the given equation, and see if the
equation becomes a true statement.

I'll do 'A' for you:

Does 't' = 8 ? 
Let's see.
If it does, then             (1/2) (8)  -  4(2 + 8)  =  20

                                     (     4    )  -  4(  10  )  =  20

                                     (     4    )  -      40       =  20

                                                  -36               =  20 .

Is that a true statement ?     Is  -36 = 20  ?
I don't think so.
=>  't' is not 8 .     
      'A' is not the correct choice.

Now go ahead and try 'B'.
_________________________________

It might be faster and easier to just take the equation and solve it.
Then you'll know what 't' is, and you won't have to try any suggestions.

Here's the equation:              (1/2) (t) - 4(2 + t)  =  20

Eliminate parentheses
on the left side:                        1/2 t    - 8 - 4t  =  20

Combine the 't's
on the left side:                        -3.5 t  -  8        =  20

Add  8  to each side:               -3.5 t               =  28

Multiply each side by  -1 :         3.5 t               = -28

Divide each side by  3.5 :               t               = - 8 .

Now you can look back at the choices
and see that 'B' is the one you want.       

a rectangular prism is 4 units x 2-1/2 units by 1-1/2 units. how many cubes with a side length of 1/2 unit will completely fill the prism

Answers

find 2 things
1. volume of 1 cube
2. volme of rectangular prism


1. volume of a cube=side^3
side=1/2
v=1/2^3=1/8 cubic units

2. volume=legnth times widht itmes height
4
2 and 1/2
1 and 1/2

for ease, convert to improper
2 and 1/2=2+1/2=4/2+1/2=5/2
1 and 1/2=1+1/2=2/2+1/2=3/2

so
v=4/1 times 5/2 times 3/2=60/4=15

so

how many cubes does it take to fill the prism
how many cubes times volume of 1 cube=volume of prism
xcubes times 1/8unit^3=15unt^3
multiply both sides by 8/1 unit^3 to clear fraction (since 1/8 times 8/1=8/8=1)
xcubes=240

need 240 cubes to fill prism

Solve: Negative one-half + c = StartFraction 31 over 4 EndFractionc = StartFraction 33 over 4 EndFraction

c = 8

c = StartFraction 29 over 4 EndFraction

c = 7

Answers

Answer:

A

Step-by-step explanation:

got it right on edge so......

Three hundred sixty five times twenty four​

Answers

Answer:

8760

Step-by-step explanation:

20*300=6000

20*60=1200

20*5=100

6000+1200+100=

7300

4*300=1200

4*60=240

4*5=20

1200+240+20=1460

1460+7300=

8760
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