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
solniwko [45]
3 years ago
7

Annie bought 3/4 kg of cocoa powder, which cost $12.92 per kg.

Mathematics
2 answers:
earnstyle [38]3 years ago
7 0

Answer:

Part a) The estimate cost is about $9

Part b) The exact cost is $9.69

Step-by-step explanation:

we know that

Annie bought 3/4 kg of cocoa powder, which cost $12.92 per kg

Part a

To find the estimate cost round the numbers and multiply

we have

\$12.92=\$12 -----> round down

so

\frac{3}{4}(12)=\$9

Part b

To find the exact amount she had to pay, multiply 3/4 by $12.92

so

\frac{3}{4}(12.92)=\$9.69 ----> exact value

anygoal [31]3 years ago
3 0

Answer:

Estimated cost; $9

Exact amount; $9.69

Step-by-step explanation:

We are told that ​Annie bought 3/4 kg of cocoa powder, which cost $12.92 per kg.

a.

We are required to estimate the cost of the 3/4 kg of cocoa powder given that 1 kg costs 12.92

We can round down the cost of a kg to obtain $12 per kg. Therefore, 3/4 of a kg will cost approximately;

(3/4) of 12

= (3/4)*12 = $9

Thus the estimated cost is $9

b.

We are required to determine the the exact amount she had to pay for the 3/4 kg of cocoa powder;

1 kg cost 12.92

3/4 of a kg will cost;

(3/4) of 12.92

= (3/4) * 12.92

Using a calculator we have;

9.69

Therefore, the exact amount paid was $9.69

You might be interested in
An airplane takes 3 hours to travel a distance of 1680 miles with the wind. The return trip was 4 hours against wind. Find the s
nasty-shy [4]

Answer:

Speed of plane in still air: 490  mile/hour

speed of wind: 70  mile/hour

Step-by-step explanation:

still speed = x        wind speed = w

with wind: speed = still + wind

(x+w) * 3 = 1680     ...a

against wind: speed = still - wind

(x-w) * 4 = 1680    ...b

b-a ... 4x-4w-3x-3w = 0

x-7w = 0

x = 7w

substitution: (7w+w)*3 = 1680      8w = 560       wind speed (w) = 70

still speed (x) = 7w = 490 mile/hour

5 0
3 years ago
Will give brainliest.
Dennis_Churaev [7]
Pretty sure it's A. (X times .5 equals Y)
8 0
3 years ago
Fill in the Blank 1. 272 > 14 ​
LenaWriter [7]

Answer:

19.4285714286 Step-by-step explanation: 272 divided by 14 can be calculated as follows. 272/14 math problems division

8 0
3 years ago
What is if-then form
alex41 [277]
40)If any combo purchased then get a free milkshake

If "condition that must be met" then "wat happens when it is met"
7 0
3 years ago
13. Find the length of the diagonal of the rectangular prism.
vova2212 [387]

Answer:

:0 no one knows

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • Find the slope of the line that goes through each pair (1,3) (1,-10)
    14·1 answer
  • You can stuff envelopes twice as fast as your friend. Together, you can stuff 6750 envelopes in 4.5 hours. How long would it tak
    10·2 answers
  • Write the equation of the line that passes through (−2, 6) and (2, 14) in slope-intercept form. (2 points)
    11·1 answer
  • Please help
    15·1 answer
  • A line is perpendicular to y = {2/3x + 2/3}
    8·1 answer
  • Elam can wire a light in 40
    14·2 answers
  • The sector of a circle has an area of 104pi/9 square inches and a central angle with measure 65 degrees. What is the radius of t
    6·1 answer
  • If Jacob has 12 gallons of soda for a Christmas party, how many pints of soda does he have?
    6·1 answer
  • for all positive angles less than 360°, if csc csc (2x+30°)=cos cos (3y-15°), the sum of x and y is?​
    8·1 answer
  • HELP PLZ I WILL GIVE BRAINLIEST!!! Write the prime factorization of 675 using exponents.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!