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
MrRa [10]
3 years ago
5

Over the last three evenings, Yoko received a total of 73 phone calls at the call center. The third evening, she received 3 time

s as many calls as the first evening. The second evening, she received 7 fewer calls than the first evening. How many phone calls did she receive each evening?
Mathematics
1 answer:
stealth61 [152]3 years ago
3 0
The first evening she received x calls.
The second evening she received 7 fewer calls than the first evening, so she received x-7 calls.
The third evening she received 3 times as many calls as the first evening, so she received 3x calls.
Over the three evenings she received 73 calls altogether.

x+x-7+3x=73 \\
5x-7=73 \\
5x=73+7 \\
5x=80 \\
x=\frac{80}{5} \\
x=16 \Leftarrow \hbox{the first evening} \\ \\ \hbox{the second evening:} \\
x-7=16-7=9 \\ \\ \hbox{the third evening:} \\
3x=3 \times 16=48

The first evening she received 16 calls, the second evening she received 9 calls, the third evening she received 48 calls.
You might be interested in
What is the value of n in this equation?<br>n+ 134 = 379<br>423<br>245<br>334​
alexira [117]

Answer:

the answer to this question is 245

Step-by-step explanation:

n+134=379

-134 -134

n=245

5 0
3 years ago
Read 2 more answers
Which is the longest 2 km 25m 2500 cm or 3000 mm
MAVERICK [17]
2km=2 kilometer
kilo=1000 so 2 km=2000m

25m

2500cm
cm=centimeter=1/100 of a meter
so
2500cm=25m


mm=milimeter=1/1000 meter
so
3000mm=3m

so the longets is obviously 2000m or 2km
6 0
3 years ago
Read 2 more answers
If the temperature in degrees Celsius , of a particular place from January to December was given as 9,11,12,12,13,14,14,14,16,15
Ira Lisetskai [31]

Answer:

use a calculator

Step-by-step explanation:

Add all of the numbers and divide by 12

5 0
3 years ago
1. Slove the system of equations, first by graphing, and then algebraically. (8 points) y=x-2 and y=-2x+7
Anton [14]

The solution of the equation is x=3 and y=1

Explanation:

The equations are y=x-2 and y=-2 x+7

First we shall solve the equation graphically.

The image of the graph is attached below.

This contains the solution to the system of equations.

The equations y=x-2 and y=-2 x+7 are plotted on the graph.

The intersection of these two equations are the solutions of the system of equations.

Thus, the intersection of the two equations are x=3 and y=1

Now, we shall solve the equation algebraically.

Let us solve the equation using substitution method.

Let us substitute y=x-2 in y=-2 x+7, we get,

x-2=-2x+7

Adding both sides by 2x, we have,

3x-2=7

Adding both sides by 2, we get,

3x=9

Dividing both sides by 3,

x=3

Thus, the value of x is 3.

Substituting x=3 in y=x-2, we get,

y=3-2\\y=1

Thus, the value of y is 1.

Hence, The solution of the equation is x=3 and y=1

4 0
3 years ago
WILL MARK BRAINLIEST <br>slove for the following variables ​
UkoKoshka [18]

Answer:

Step-by-step explanation:

All triangle must have angle values adding up to 180 degrees.First solve for y;

110+33+y=180

y=37 degrees

x is the opposite inverse angle of 33 degrees, it has an angle measure of 33 degrees.

z is equal to 110 degrees because it is opposite to that angle measure because all rhombi have 2 way symmetry.

8 0
3 years ago
Read 2 more answers
Other questions:
  • there are a total of 44 goats and chickens being raised. between them, they have 134 legs. how many goats are in total? how many
    8·1 answer
  • A bank representative studies compound interest so she can better serve customers. She analyzes what happens when 2,000 earns se
    13·1 answer
  • In our solar system, 6 of the 8 planets have moons. What percentage of the planets have moons?
    14·1 answer
  • What is 2 times 8976543210?
    10·2 answers
  • What is the range of f(x) = -x^2 + 4, if the domain is {2,0,1}?
    10·1 answer
  • First come first served brainiest:)
    14·1 answer
  • My fellow Americans, tonight, I’d like to talk with you about immigration.
    9·2 answers
  • Which of the following is equivalent to 4/20? 1. 1/10 2. 3/15 3. 3/19 4. 2/12
    9·2 answers
  • Is x = 5 a solution to the equation 19 - x = 14?
    12·2 answers
  • What are the dimensions of the rectangle shown on the coordinate plane?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!