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
Andrei [34K]
2 years ago
6

120% of x is equal to 78.

Mathematics
2 answers:
Rainbow [258]2 years ago
7 0

Answer:

A. 1.2x = 78

B. x = 65

Step-by-step explanation:

Degger [83]2 years ago
4 0

Answer:

A. 1.2x = 78

B. x = 65

Step-by-step explanation:

Just informally, first:

x is the number that we don't know. 120% of that number is a number BIGGER than that number. 120% of x is 78. So 78 is BIGGER than the number that we don't know.

120% of x = 78

Change 120% to a decimal by moving the decimal two places to the left. Multiply.

1.2x = 78

To solve, divide both sides by 1.2

x = 78/1.2

x = 65

You might be interested in
The average cost of living for a family of four in twelve different cities was found to be $65,351 with a standard deviation of
Andrej [43]

Answer:

$65,351+/-$3,661.73

= ( $61,689.27, $69,012.73)

Therefore, the 90% confidence interval (a,b) = ( $61,689.27, $69,012.73)

Step-by-step explanation:

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

Given that;

Mean x = $65,351

Standard deviation r = $7,711

Number of samples n = 12

Confidence interval = 90%

z(at 90% confidence) = 1.645

Substituting the values we have;

$65,351+/-1.645($7,711/√12)

$65,351+/-1.645($2,225.973962860)

$65,351+/-$3661.727168905

$65,351+/-$3,661.73

= ( $61,689.27, $69,012.73)

Therefore, the 90% confidence interval (a,b) = ( $61,689.27, $69,012.73)

6 0
3 years ago
Which is greater than 4.026?<br><br> A. 4.020<br><br> B. 4.030<br><br> C. 4.021<br><br> D. 4.006
mote1985 [20]

Answer:

b

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
3s+2t−3 =c<br> −7s−5t =4<br> ​
irinina [24]

Answer:

c=

−4

3

s−t+

−4

3

Step-by-step explanation:

Let's solve for c.

3s+2t−3c−7s−5t=4

Step 1: Add 4s to both sides.

−3c−4s−3t+4s=4+4s

−3c−3t=4s+4

Step 2: Add 3t to both sides.

−3c−3t+3t=4s+4+3t

−3c=4s+3t+4

Step 3: Divide both sides by -3.

−3c

−3

=

4s+3t+4

−3

c=

−4

3

s−t+

−4

3

3 0
3 years ago
How many times longer is 3 1/2 to 2 1/2
Alik [6]

Answer:

1.4 times as long

Step-by-step explanation:

3 1/2 (convert to mixed number) --> 7/2

2 1/2 (convert to mixed number) --> 5/2

(7/2) / (5/2) --> 7/5 --> 1.4

3 0
2 years ago
Read 2 more answers
The diagram shows a right-angled triangle.
Ratling [72]
Where is the diagram?
4 0
3 years ago
Other questions:
  • HELP ME PLEASE :D :D
    7·1 answer
  • Two sides of a triangle are 15 mm and 10 mm. The perimeter of the triangle is 35 mm. What's the third side?
    8·1 answer
  • A math teacher is trying to analyze her test grades she surveys the students to find out how many minutes they studied she then
    11·1 answer
  • If a b and c satisfy the equation a^2+b^2=c^2, are 2a, 2b, and 2c also possible side lengths of a right triangle? How do you kno
    7·1 answer
  • 1 pts
    11·1 answer
  • What is the answer to 227-198
    5·2 answers
  • The solution to 8x = 32 is x = __.
    11·2 answers
  • Please help!!!!
    11·2 answers
  • Is this graph shown below a proportional or non proportional linear relationship
    12·1 answer
  • What is the Co ordinates to fill in the grid in the top left?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!