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
DiKsa [7]
3 years ago
15

I need a little help with the second part of b and part c! + can y'all check my explanations please

Mathematics
1 answer:
Olin [163]3 years ago
4 0

Answer:

b. Your answer is appropriate.

c. The decimals can be eliminated by multiplying by 100. (You can also add 0.14 to the problem, adding .01 to each individual price and 0.14 to the total. This will make the second equation be 12x +25y = 246, which makes the numbers slightly easier to work with.) Unfortunately, there don't seem to be any common factors that would reduce the size of the numbers.

Step-by-step explanation:

a. We assume you're finding quantities of shirts and pants for a purchase of 14 total items costing $245.86. If so, your equations are appropriate.

b. The solution for one variable or the other can be found in 6 arithmetic operations using your suggested method. Any other method takes as many or more. (Multiplying the first equation by -11.99 and adding to the second gets you the equivalent of substituting for x in as many operations.)

Graphing can be quick and easy with the right tool. Since you know the solutions are integers, just about any graphing tool will get you close enough.

Another method (using only 5 arithmetic operations) is to calculate the average price of an item as 245.86/14, then figuring the ratio of the difference from the lower price to the total difference in price. Multiplying this ratio by the number of items gives the number of the higher-priced item (pants). (245.86/14 -11.99)/(24.99 -11.99)·14 = 6 This method treats the problem as a "mixture" problem, finding the numbers of each consitutuent that make the average come out what it is.

c. See above for how to simplify the numbers. Done properly, the answer is not changed. (Some people don't work well with decimals or fractions, so like to see those eliminated from the problem. Some folks work better with small integers than with large ones, so like to see the numbers be made as small as possible.)

You might be interested in
EZ QUESTION BUT I DUMB: Mrs Raj Bought 10 pizzas for a party. Each child at tje party recieved 1/5 of a pizza. how many children
OlgaM077 [116]
So since she cut up each pizza into 5ths then 5 kids per pizza


5+5+5+5+5+5+5+5+5+5=50

the answer is 50 children
7 0
3 years ago
80 POINTS MATH
notka56 [123]

hey mate..

the position at which the tips of the scissors will be FARTHER APART is at position B.

as the angle made by the scissors at the centre is greater in position B.



3 0
3 years ago
Read 2 more answers
What is the domain of the following graph?
Morgarella [4.7K]

Answer:

[0,9]

Step-by-step explanation:

The domain is the first set of the ordered pair. When finding the domain you are supposed to find which x value it starts from to where it ends. The x value starts from 0 and ends and the 9th unit on the x-axis which would give us 0,9 now since both points are closed you would use these symbols [ ] to show that it is closed meaning the answer would be [0,9]

Note:

I'm sorry if this is wrong but this is what I believe the answer is.

4 0
3 years ago
PLEASE HELP ASAP THE DETAILS ARE BELOW.What is the value of x?
Aloiza [94]

Answer:

x = 30°.

Step-by-step explanation:

The dashes on the three lines indicate that the three lines are of equal lengths. The smaller triangle made out of the three lines (the one with two vertices on the circumference of the circle and one at the center of the circle) is an isosceles triangle. All three of the triangle's interior angles are 60° since it is isosceles.

The line (the one with arrows on its ends) touches the circle at only one point. That line is a tangent to the circle. That line is perpendicular to the segment that connects the center of the circle to the point of tangency. The angle between the two will be 90°.

The largest triangle includes three angles:

  • The angle with the center of the circle as its vertice: 60°;
  • The right angle due to the tangent to the circle: 90°;
  • The angle x°.

What is the value of x?

The three interior angles of a triangle add up to 180°. As a result,

60° + 90° + x° = 180°

x = 180 - 90 - 60 = 30.

6 0
3 years ago
Find the m∠DCA A. 10 B. 29 C. 116 D. 40
Blizzard [7]
DCA is 116 because x=29, when you plug 29 into x you get 116
5 0
3 years ago
Other questions:
  • A square has a side of 6.25 feet. What is the area in square feet? Round to the correct significant digits.
    8·1 answer
  • Please help me. Thnx
    11·1 answer
  • GETS BRAINLIEST AND 11 PTS
    9·2 answers
  • 12 The cost of a telephone call is $0.60 for the first three minutes plus $0.17 for each additional minute. What is the greatest
    11·2 answers
  • Help please<br><br><br><br><br> thank you! :)
    7·1 answer
  • If a + b + c = -6 and x + y = 5<br> what is 9y + 9x - 10a - 10c - 10b?
    9·1 answer
  • Given y varies directly as x, use the given x-value and y-value to find an equation that relates x and y. x = 24 and y = 360
    5·2 answers
  • Given D(5, 7) and E(3, -3), find the midpoint of DE.​
    9·1 answer
  • Which statements are true about the graph shown below. There are more than one answer.
    6·1 answer
  • Given the equation f + 24 = −3, solve for f.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!