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20/25   x 100% = 80%

Yes, first is D

Sorry, second is not B since points D, L, F are not on the same line.

Collinear means that all points are on the same line.

For example, in the first picture, A-H-B does not work, because if you find where they are, they don't form a straight line.

However, D-L-B is in a straight line, so choice D is correct.

With this info, can you do number 2?

You are very welcome!

:P

is the first one D ?

the second one is B ?

We can have 0, 1, 2, 3, or 4 toppings.

4 choose 0 is 1

4 choose1 is 4

2 is 6

3 is4

4 is 1.

Addthem up to get 16.

If there are nine types of salad, multiply by 9 to get 144 salads.

You are very welcome!

:P

yes that's right, i missed out on A

How about   A    Take a look....     answer   A   B   E

B and E ?

Price per month would be   $5976/12 months =  $ 498/month

    she paysonly 30% of this

         .3 (498) = $149.40 per month       (She IS lucky !)

4/3 pi r^3   is volume of a sphere      usin p = 3.14

softball (the larger of the two) = 4/3 pi (1.9)^3           (make sure you use RADIUS....the Q gives DIAMETER !!!)

        4/3  (3.14) (1.9)^3   in³   Use calculator to find volume of softball....

then find the volume of the BASEball the same way except  r = 1/2 d = 1.5 inches for baseball

    then find the difference between the two    ........    difference will be in^{3   (don't forget units in your answers !)}

I know , MS...but this is simply looking at the picture to see which points are on any line.....you can do this

      B is correct....any others?  (yes)

BTW, I see what you wrote yesterday man and the thing is i don't understand a lot much of the subject with geometry and math that well but i do know most of the math and i tried to get everything out of the way cause i have a busy schedule to keep up with.

the answer would be B

Great illustration , Omi !!!

9^6=9*9*9*9*9*9

   but  9*9*9*9*9*9  = 531441    (snigger)   

200 liters of 75% = .75 (200) = 150 gallons of acid

.90 x   +  .50(200-x)  = 150

.9x   + 100 - .5x = 150

.4x = 50

x = 90% solution = 125 gallons

200-x = 50% solution = 200-125 = 75 gallons of 50% solution

Original balance   400

  paid 20   

     new balance = 380     charged additional 18

         new balance 398        interest of 2% on this entire amount

             .o2 x 398 = $ 7.96 interest

We did a Q for you yesterday that is almost exactly like this one , MS....you should be able to complete this one......COLLINEAR means "on the same line"       Which sets are on the same line(s) ?  

If the sale is 95% OFF   then you pay only 5%

5%  x 57 =

.05 x 57 = 2.85  = sale price

If the sale is pay only 95% of original price (the Q does not say which way the sale works)

then you pay    .95 x 57

Use a ratio system

5.1 ft is to 19 inches    as   tree h is to 66.5 

5.1/19    =  h / 66.5

5.1/19  * 66.5   = h

h= 17.85 ft tall

Rate * t  = Distance

t is the time @ 17 mph

4hrs-t  is the time at 22 mph

17*t  +  22(4-t)   = 70

17t + 88 - 22t = 70

-5t = -18

t = 3.6 hrs   @ 17 mph  .4 hr @ 22

She pays  $149.4 per month. She's  lucky

12x² - 11x+2 How do I factor this?  Show all your work.

It's very simple like that.

9^6=9*9*9*9*9*9