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
eimsori [14]
3 years ago
12

Please show your work

Mathematics
1 answer:
White raven [17]3 years ago
3 0

Let a,b & c be the number of cookies Adrian, Bobby and Calvin baked respectively.

(a+b+c)/3 =138

(a+b)/2 =136

a+b=272

a=272-b

(b+c)/2 =125

b+c=250

c=250-b

Sub a=272-b and c=250-b into (a+b+c)/3 =138,

(a+b+c)/3 =138

[(272-b)+b+(250-b)]/3 = 138

272-b+b+250-b = 414

-b = -108

b=108

From the above,

a=272-b

=272-108

a=164

c=250-b

=250-108

c=142

∵ a=164

b=108

c=142

∴ Adrian baked 164 cookies.

Bobby baked 108 cookies.

Calvin baked 142 cookies.

You might be interested in
I need a job please help lol
NeX [460]

Answer:

just say something inspiring and formal

3 0
3 years ago
Read 2 more answers
The distance from Wakefield to London is 180 miles. A train travels this distance in 2 hours 15 minutes. Calculate the average s
Readme [11.4K]

Answer:

v = 80 mph

Step-by-step explanation:

Given that,

The distance from Wakefield to London is 180 miles.

The train travels this distance in 2 hours 15 minutes.

We need to find the average speed of the train. The average speed of the train is equal to the total distance covered divided by the time taken.

v=\dfrac{d}{t}\\\\v=\dfrac{180\ miles}{(2+\dfrac{15}{60})\ h}\\\\v=80\ mph

So, the required average speed of the train is 80 mph.

4 0
3 years ago
PLEASE HELP!!!! IN NEED OF IT
prisoha [69]

Answer:

Below in bold.

Step-by-step explanation:

This is a regular polygon so all sides are congruent, therefore:

The perimeter of the polygon = 6*34 = 204 units.

We can divide the polygon into 6 conguent triangle with height 30 and base 34.

So area of 1 triangle = 1/2*34*30 = 510.

So area of the polygon = 6 * 510 = 3060 unit^2.

Perimeter of the polygon = 6*34 = 204 units.

6 0
3 years ago
Helpppppppppppppp pleaseeeeeeeeeeee asappppppp
polet [3.4K]

Answer:

x^2 + 4x-21

Step-by-step explanation:

I believe this is it

8 0
3 years ago
I need help with this how do I do it
Anna35 [415]
Triangle angles add to 180 degrees. Thus, x - 17, x - 22, and 3x + 19 add to 180.

Add like terms to get 5x - 20 = 180
5x = 200
x = 40
5 0
3 years ago
Other questions:
  • Lucie is 5 years younger than her brother. Three years ago, Lucie was twice younger than her brother. How old is each now?
    7·2 answers
  • Clara brought 24 donuts for the office. If 6 of them were chocolate, what percent of the donuts were chocolate
    7·2 answers
  • In an independent groups experiment, if we must estimate the population standard deviation to determine the significance of the
    5·1 answer
  • So I need help with this math problem​
    8·1 answer
  • Answer me if you need a friend<br><br> Also 5x+25=35<br><br> x=
    11·1 answer
  • What is 3.40425532 reduced
    11·2 answers
  • Thank you for your help!
    11·1 answer
  • Jordan has a checking account. he withdrew $90 from an ATM Tuesday. Thursday he deposited $20. Friday he wrote a check for $15 w
    9·1 answer
  • Given g(x) = -x – 4, solve for x when g (x)= -4
    14·1 answer
  • Find the value of d.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!