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
vodka [1.7K]
2 years ago
7

In 3 years, Dianna will be 4 times as old as she was 33 years ago. How old is Dianna now?

Mathematics
1 answer:
Sergeu [11.5K]2 years ago
4 0

Given that In 3 years, Dianna will be 4 times as old as she was 33 years ago, her present age is 45.

<h3>How old is Dianna now?</h3>

Given that, in 3 years, Dianna will be 4 times as old as she was 33 years ago.

Let x represent the age of Dianna presently.

Dianna's age in 3 years time will be: x + 3

Dianna's age 33 years ago is: x - 33

Since in 3 years, she will be 4 times as old as she was 33 years ago.

x + 3 = 4( x - 33 )

We solve for x

x + 3 = 4x - 132

3 + 132 = 4x - x

135 = 3x

x = 135/3

x = 45

Given that In 3 years, Dianna will be 4 times as old as she was 33 years ago, her present age is 45.

Learn more word problems here: brainly.com/question/2610134

#SPJ1

You might be interested in
Answer fast for pts
sdas [7]

Answer:

Since she arrived at 8:30 its not accurate because her records started at the time she arrived so she didnt get the times of the students that arrived before her

Step-by-step explanation:

Hope this helps:))

4 0
2 years ago
Read 2 more answers
Which of the following graphs are identical
Lady bird [3.3K]

Answer:

The domain is x ≥ -7

Step-by-step explanation:

The domain asks what values can x take

We know that the sqrt(x+7) must be ≥ 0

That means the smallest value it can be is zero

x+7 ≥ 0

x ≥ -7

The domain is x ≥ -7

5 0
3 years ago
A researcher plans to conduct a significance test at the 0.01 significance level. She designs her study to have a power of 0.90
Rasek [7]

Answer: 0.10

Step-by-step explanation: The type 2 error is committed when the alternative hypothesis is rejected when it should have been accepted causing the researcher to accept the null hypothesis which is false.

Power is the probability of avoiding a type 2 error. That is ;

Power = 1 - P(type 2 error)

Given that power = 0.90 ; P(type 2 error) = probability of committing a type 2 error.

P(type 2 error)' = 1 - P(type 2 error) = Probability of not committing or avoiding a type 2 error

0.90 = 1 - P(type 2 error)

P(type 2 error) = 1 - 0.90

P(type 2 error) = 0.10

6 0
3 years ago
What is the point-slope form of a line with slope 3 that contains the point (2,1)
ryzh [129]

Answer:

Point slope form:

The equation of line is given by: y-y_1=m(x-x_1)        .....[1]

where m is the slope and a line contains a point (x_1, y_1).

As per the given statement:

Slope(m) = 3

(x_1, y_1). = (2, 1)

Substitute these in [1] we have;

y-1=3(x-2)

therefore, the point slope form of a line with slope 3 that contains the point (2, 1) is; y-1=3(x-2)

5 0
3 years ago
Read 2 more answers
Find the values of x and y
Mkey [24]

Answer:

x = 78º

y = 35º

Step-by-step explanation:

These are isosceles triangles

two angles are congruent

-----------------------------

x + 51 + 51 = 180

x = 180 - 102

x = 78º

y + y + 110 = 180

2y = 70

y = 35º

3 0
2 years ago
Other questions:
  • A spherical weather balloon is being inflated. The radius of the balloon is increasing at the rate of 7 cm/s. Express the surfac
    15·2 answers
  • Solve and show steps. 3 divided by 4.236
    6·1 answer
  • How to solve 5/8h = 1,1/2=5
    5·1 answer
  • Given the formula A = pi r squared, how does the A vary in relation to the square of the radius?
    10·2 answers
  • Find the area of a trapezoid based on the information given below. H=4√2 b1=5√2 b2=3√2
    5·1 answer
  • What times what equals 168 besides 84 times 2?
    6·1 answer
  • 10. How many solutions does this system of equations have? Explain how you know.
    9·1 answer
  • Pls help I need this pls help I’m begging u have a good day pls help
    9·2 answers
  • Please solve it for me!! The answer is 97.3cm
    9·2 answers
  • A city averages 14 hours of daylight in June (the longest days) and 10 in December (the shortest days). Assume that the number o
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!