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
zavuch27 [327]
3 years ago
13

r. Yi buys vegetables at a market. He purchases 6 pounds of potatoes, p, and 3 pounds of onions, n, for $18. Onions cost twice a

s much as potatoes. To determine the unit price for each item, his daughter sets up and solves the system of equations shown. 6p + 3n = 18 and 2n = p 6(2n) + 3n = 18 12n + 3n = 18 15n = 18; n = $1.20 Onions cost $1.20 per pound. Analyze the daughter’s solution. Which statements are true? Check all that apply. The equation 2n = p should be 2p = n. The equation 6p + 3n = 18 should be 6n + 3p = 18. The actual cost of the onions is $3.00 per pound. Potatoes cost $0.60 per pound. Potatoes cost $1.50 per pound. Potatoes cost $2.40 per pound.
Mathematics
1 answer:
ad-work [718]3 years ago
5 0

Answer:

  • The equation 2n = p should be 2p = n.
  • The actual cost of the onions is $3.00 per pound.
  • Potatoes cost $1.50 per pound.

Step-by-step explanation:

The wording "onions cost twice as much as potatoes" is understood to mean the cost per pound of onions (n) is equal to two times the cost per pound of potatoes (2p). Then the appropriate equation would be ...

  2p = n

Then the solution is ...

  6p +3(2p) = 18

  12p = 18

  p = 18/12 = 1.50

  n = 2p = 2(1.50) = 3.00

__

The equation should be 2p = n; onions cost $3.00 per pound; potatoes cost $1.50 per pound.

You might be interested in
why do whole numbers raised to an exponent get greater ,while fractions raised to an exponent get smaller
blsea [12.9K]
Because whole numbers are bigger than fractions

7 0
3 years ago
WHOEVER ANSWERS CORRECTLY AND FAST GETS BRAINLIEST!!!!!!!!!!!!!!!!!!!!
hammer [34]

Answer:

r = 32,546.69 * 1.03^t

Step-by-step explanation:

33,523.09/32,546.69 = 1.03

34,528.78/33,523.09 = 1.03

35,564.65/34,528.78 = 1.03

The common ratio between values is 1.03.

The initial value is 32,546.69

The is exponential growth with initial value 32,546.69 and a growth factor of 1.03.

Equation:

y = a(1 + i)^t

r = 32,546.69 * 1.03^t

3 0
3 years ago
I don't know the answer pls tell me the answer
wlad13 [49]

Step-by-step explanation:

3 groups with 6 flowers in each group

or

2 groups with 9 flowers in each group

or

6 groups with 3 flowers in each group

or

9 groups with 2 flowers in each one

4 0
3 years ago
Read 2 more answers
Help would be very helpful :) the answers are: (812pi cm^3) (602pi cm^3) (735 cm^3) and (512pi cm^3) 30 points!!!!!
g100num [7]

Find the area of the top ( circle) then multiply by the height.

Area = pi x r^2

Area = pi x 7^2

Area = 49pi

Volume = 49pi x 15

Volume = 735pi cubic cm.

6 0
3 years ago
6 plates and 5 cups cost 23.80 dollars. 7 plates and 6 cups cost 28.00 dollars. Each plate costs the same amount as the other pl
MrRa [10]

Answer:

c = $1.4

p = $2.8

Step-by-step explanation:

two equations can be derived from the question

6p + 5c = 23.80 equation 1

7p + 6c = 28  equation 2

p = plates

c - cups

multiply equation 1 by 7 and equation 2 by 6

42p + 35c = 166.60  equation 3

42p + 36c = 168  equation 4

subtract equation 3 from 4

c = 1.4

substitute for c in equation 1

6p + 5(1.4)  = 23.80

p = (23.80 - 7) / 6

p = 2.8

6 0
2 years ago
Other questions:
  • How do I solve this equation <br> 2.4c-2=0.4(1+6c)<br> I end up with -2= 0.4
    14·1 answer
  • Make 24 using the numbers 1,4,8,8 use all four operations to solve your equation
    7·1 answer
  • How do you write 55 another way
    7·1 answer
  • Can someone give me the answers for the number frame and how you did it, I’m confused :)
    6·1 answer
  • Slope of a line that goes through the points (4,-1) and (3,8)
    11·1 answer
  • Circular gears P and Q start rotating at the same time at constant speeds. Gear P makes 10 revolutions per minute and Gear Q mak
    7·1 answer
  • Which polynomial is written in descending order of the powers of the variable?
    6·1 answer
  • Order from least to greatest <br> 5/6, 7/12, 3/4
    8·2 answers
  • HELP ASAP! Relations and Functions!!! Giving brainliest!!!
    15·1 answer
  • Hi i need help with this math question
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!