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
Lina20 [59]
3 years ago
8

Question 15

Mathematics
1 answer:
Viefleur [7K]3 years ago
8 0

Answer:

0.71

Step-by-step explanation:

1st attempt = \frac{14}{22} = 63%%

2nd attempt = \frac{22}{28} = 79%%

To get the average of something, find the sum of the numbers and then divided the sum by the total number of values there are.

⇒ 63 + 79 = 142

⇒ 142 / 2 = 71%  

⇒ 71% = .71

You might be interested in
On a certain hot​ summer's day, 643 people used the public swimming pool. The daily prices are $1.50 for children and $2.00 for
lilavasa [31]

249 children and 394 adults swam at the public pool.

Step-by-step explanation:

Number of people swam at pool = 643

Receipts = $1161.50

Cost for one child = $1.50

Cost for one adult = $2.00

Let,

x be the number of children

y be the number of adults

According to given statement;

x+y=643    Eqn 1

1.50x+2.00y = 1161.50   Eqn 2

Multiplying Eqn 1 by 2

2(x+y=643)\\2x+2y=1286\ \ \ Eqn\ 3\\

Subtracting Eqn 2 from Eqn 3

(2x+2y)-(1.50x+2.00y)=1286-1161.50\\2x+2y-1.50x-2.00y=124.50\\0.5x=124.50

Dividing both sides by 0.5

\frac{0.5x}{0.5}=\frac{124.50}{0.5}\\x=249

Putting x=249 in Eqn 1

249+y=643\\y=643-249\\y=394

249 children and 394 adults swam at the public pool.

Keywords: linear equation, subtraction

Learn more about linear equations at:

  • brainly.com/question/5798698
  • brainly.com/question/5758530

#LearnwithBrainly

4 0
3 years ago
What is the solution of the system of linear equations?
Monica [59]
-3x+4y=-18
2x-y=7
the answer qould be C.(2,-3)
-3(2)+4(-3)=-18
-6+(-12)=-18
-18=-18

2(2)-(-3)=7
4+3=7
7=7

C.
8 0
3 years ago
Read 2 more answers
Due in 5 mins please help me!
Alchen [17]

Answer:

no

Step-by-step explanation:

7 0
3 years ago
The Elementary Functions (F18’s) are the set of functions of one real variable defined recursively as follows: Base cases: The i
Ira Lisetskai [31]

Answer:

sorry I don't know that

8 0
3 years ago
Find the percent change 10 inches to 25 inches
svp [43]

Answer:

NNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNNN

Step-by-step explanation:

6 0
4 years ago
Read 2 more answers
Other questions:
  • I need help with my homework! It says to divide 15 pounds of rice into four unequal measures using ounces. I don't get it. Does
    10·1 answer
  • Simplify.<br><br> 1/4y+1 1/ 2+2−1 3/4y−12
    6·2 answers
  • Evan's mother used 1/3 pound of beef, 1/2 pound of shrimp, and 3 pounds of pasta to make dinner for 4 people. Use this informati
    10·1 answer
  • Evaluate the expression when a=4 and x=-3.<br> -2a +x
    8·2 answers
  • Six gallons of gasoline cost $15.06. What is the price of gasoline per gallon
    5·2 answers
  • 2+2 +2 +2 +2 +2 +2 +2 +2 +2=46<br> Why is this correct?
    11·2 answers
  • 2.
    5·1 answer
  • Write the ratio 120 inches to 4 feet as a fraction in lowest terms
    14·1 answer
  • Which is the cost of the minimum spanning tree of the weighted graph using Kruskal's Algorithm?
    12·1 answer
  • The list –9, –3, 7 is in order from least to greatest. Which of these statements is true about adding a number to the list? A. –
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!