1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Leya [2.2K]
3 years ago
7

. Ann can ice a cupcake in 30 seconds. Sarah can ice a cupcake in 40 seconds. Working

Mathematics
1 answer:
navik [9.2K]3 years ago
5 0

Answer:

600seconds

Step-by-step explanation:

If Ann can ice a cupcake in 30 seconds, then the total number of cupcakes iced by ann is t/30 cupcakes

Similarly, If Sarah can ice a cupcake in 40 seconds, then the total number of cupcakes iced by Sarah is t/40 cupcakes,

For them to ice 35cupcakes together, then;

t/30 +  t/40 = 35

where t is the times taken by both of them to ice 35cupcakes

Find the LCM

40t+30t/1200 = 35

70t/1200 = 35

7t/120 = 35

t/120 = 5

t = 120 * 5

t = 600

This shows that it will take them both 600seconds to ice 35cupcakes

You might be interested in
Recycle, reuse, and reduce are referred to as the three R's. Which sequence shows the three R's in order from most to least desi
cricket20 [7]

Answer:

(1) Reuse;  (2) Recycle ;  (3) Reduce

Step-by-step explanation:

The ideal sequence would be:

1) Use it again (reuse) if the object still serves its intended purpose/s

2) If not possible to the used again, send it to a recycling plant to extract from it items/parts/substance of utility for other new products

3) if it cannot be reused or recycled, the last option will be to reduce it completely.

5 0
3 years ago
0.66666667 as a fraction
Ierofanga [76]

Answer:

__________________________________________

    The correct answer is:   " \frac{2}{3} " .

__________________________________________

Note:  Let's assume that this given decimal value  is really:

"0.66666666666666666....."  ;

(non-terminating; but repeating the singing digit, "7" ; yet rounded to:

" 0.66666667 " ;  

then:  " 0.666... "    = \frac{666}{999}  ;

                             

                               =  (666 ÷ 111) / (999 ÷ 111)  ;

                               =  6/9 ;

                              = (6÷3)/(9÷3)  ;

                               =   2/3 ;

                             

                               =   " \frac{2}{3} "

 

                              →  which is our answer.

____________________________________________

 Or:   " 0.6666... "  =  666 ÷ 999 = ?  ;

                        using calculator :

                               =  0.66666667 ;  

        →  which is the "rounded off" number of "0.6666..." ;

                                                                — (infinitely repeating) ;

                  →   So 666 ÷ 999 =

                  →   "  \frac{666}{999} " ;

               

                               =  " \frac{2}{3} " ;  

                               →  Either use a "fraction calculator" ;

       or simplify as aforementioned.    

____________________________________________

Hope this answer is helpful to you!

       Best wishes to you in your academic pursuits

              — and within the "Brainly" community!

____________________________________________

7 0
3 years ago
Read 2 more answers
What is true about the dilation?
OlgaM077 [116]

Answer:

<h2>pretty sure its A sorry if its wrong  </h2>

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Answer my math question I asked so many times I lost most of points
maks197457 [2]

Answer:

f(x) = (x+1)^2 - 9

7 0
3 years ago
Read 2 more answers
(No links please) There were 2 red marbles, 3 blue marbles and 5 gold marbles in a bag.
Rashid [163]

Answer:

5/9

Step-by-step explanation:

You started with 10 marbles total. You removed one marble and did not replace it, so you now have 9 marbles. The marble that you removed was NOT a gold marble, so you still have 5 gold marbles.

This means that out of the 9 marbles that you have left, 5 of them are gold.

This means you have a 5/9 chance of drawing a gold marble next.

4 0
3 years ago
Other questions:
  • Ms. Johnson has a box of 60 red and black pens on the shelf. If the ratio of red to black pens is 2 to 3, how many red pens does
    10·2 answers
  • Find the volume of a rectangular box whose length is a-2 inches, width is ‘ a ‘ inches and its height is a+3 inches.
    9·1 answer
  • 4x + 3y = 22<br> 5x - 4y = 43<br> Simultaneous Equation
    10·1 answer
  • 30 points if you can answer this question and tell me how to do it
    15·1 answer
  • What is the difference between -6 and -3 on a number line?
    5·2 answers
  • Help please will give brainiest
    10·1 answer
  • Susan's cat weighs 3 pounds. Susan's dog weighs 3 1/4 times as much as her cat. How much does Susan's dog weigh?
    6·1 answer
  • 3n^2-5n-6=9 help please!
    9·2 answers
  • Part A: describe how you can decompose this shape into triangles. (2 points) Part B: what would be the area of each triangle? (5
    5·1 answer
  • Choose the function whose graph is given by:
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!