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
nika2105 [10]
3 years ago
6

Question: A box of chocolates contains square chocolates, which weigh 10 g each, and round chocolates, which weigh 8 g each. The

combined weight of all the chocolates is 210 g. The number of round chocolates is 3 less than twice the number of square chocolates. Write a pair of linear equations to represent the information given above. Be sure to state what the variables represent. Solve the pair of equations to find the number of square chocolates. Show your work.
Mathematics
1 answer:
Viktor [21]3 years ago
3 0

Answer: the box contained 9 square chocolates and 15 round chocolates.

Step-by-step explanation:

Let x represent the number of square chocolates contained in the box.

Let y represent the number of round chocolates contained in the box.

The box of chocolates contains square chocolates, which weigh 10g each and round chocolates which weigh 8g each. The combined weight of all the chocolates is 210g. It means that

10x + 8y = 210- - - - - - - - - - -1

The number of round chocolates is 3 less than twice the number of square chocolates. It means that

y = 2x - 3

Substituting y = 2x - 3 into equation 1, it becomes

10x + 8(2x - 3) = 210

10x + 16x - 24 = 210

26x = 210 + 24

26x = 234

x = 234/26

x = 9

y = 2x - 3 = 2 × 9 - 3

y = 18 - 3

y = 15

You might be interested in
Can someone please help a guy out? and ASAP. i'm really tired and i've been trying to get this done for months but i cannot unde
lorasvet [3.4K]

Answer:

1) On the x-axis, the arm span is plotted. On the y-axis, the height is plotted. It is chosen to be that way because the numbers on that have been assigned on the x-axis increase and decrease in a small amount, while the numbers on the y-axis increase and decrease in a huge amount.

2) (lolz i cant show u my work but i will try my best with explanations even tho ian allat.) So, Using the slope formula, I got a the equation y=x+15. The equation was determined with the formula m=y2-y1/x2-x1. The points that were used included (37,40) and (47,50). After finding the slope, I did the best guess for the y-intercept, which is known as b in y=mx+b.

3) The slope of the line represents the time it takes for the arm span and the height. The y-intercept represents the height that the arm span starts developing or gets bigger.

4) It fits perfectly

5) The data is pretty inconsistent.

6)  About 68-69 inches tall

7)About 71-72 inches wide

yeo u had my brain work after this

Step-by-step explanation:

4 0
3 years ago
How many significant figures will there be in the answer to the following problem? you do not have to solve the problem. 223.4 •
Irina-Kira [14]

Answer:

5 significant figures

Step-by-step explanation:

looking at the last two digit of the numbers, it multiplication gives, 4*5=20

we already have four significant figures ,

so, 2 would be the fifth since 0 is not going to be counted

3 0
3 years ago
Hey! any help is appreciated!!
igomit [66]

Step-by-step explanation:

48 us the correct answer

5 0
3 years ago
The cruising speed of a 747 airplane is approximately 9,944 inches per second. What is this speed to the nearest foot per second
sweet [91]

The answer is B. 829 feet per second.

4 0
3 years ago
Read 2 more answers
Tamika’s math test scores (out of 30) are 25, 28, 26, 25, 8, 29, 28, 24, 23.
I am Lyosha [343]

Answers:

A.) 8 is the outlier in the set. It is the only number that doesn't match with the others. It is the furthest from the median of the numbers.

B.) The outlier could represent false information. It could greatly drop the number of the mean, or the average, range of the scores.

C.) The mean is affected more. The mean of a set of numbers is the average of the set. The median just locates the middle-most number. The median would not always give an accurate representation of the average of the set like the mean would.

4 0
3 years ago
Other questions:
  • A rectangle has a length of 6 centimeters and a width of X+10 centimeters. Write an
    8·2 answers
  • Round to the nearest tenths please txt bck faster
    12·1 answer
  • What is 3/7ths of 63
    8·2 answers
  • Please help me with this problem
    15·1 answer
  • 173 миллиметр в сантиметрах ??​
    6·1 answer
  • How do you solve 5y+4=4y+5
    14·2 answers
  • Find the measure of ABD for rectangle ABCD
    9·1 answer
  • Find the value of x 3x+6 41 6x-5 4x+7 62 7x-11
    12·1 answer
  • Isaiah has a points card for a movie theater.
    14·1 answer
  • Please help me with question 3 here
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!