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
Nat2105 [25]
3 years ago
15

A typical middle-income household in 1980 earned $34,757. A similar household in 2009 earned $38,550. What was the relative incr

ease in income for these households from 1980 to 2009? Round to the nearest one percent.
Mathematics
2 answers:
S_A_V [24]3 years ago
5 0

Given conditions are :

In 1980's, a typical middle-income household earned=  $34,757

In 2009, a similar middle-income household earned= $38,550

And we have to find relative increase in income for these households from 1980 to 2009.

So first we will find the total increase in amounts.

38550-34757=3793

Relative increase = \frac{3793}{34757}*100

= 10.91% or rounding it off we get approx 11%.

Hence, the answer is 11%.

Papessa [141]3 years ago
4 0
<h2>Answer:</h2>

The relative increase in income for these households from 1980 to 2009 is:

                                         11%

<h2>Step-by-step explanation:</h2>

If the initial amount is : a

and the increased amount the other year is: b

Then the relative increase is calculated by:

\dfrac{b-a}{a}

and in percent we calculate it as:

\dfrac{b-a}{a}\times 100

Here ,

A typical middle-income household in 1980 earned $34,757.

i.e.  a=$  34,757

A similar household in 2009 earned $38,550.

i.e. b=$ 38,550

then the relative increase in percent from 1980 to 2009 is:

=\dfrac{38,550-34,757}{34757}\times 100\\\\\\=\dfrac{3793}{34757}\times 100\\\\\\=0.1091291\times 100\\\\=10.91291\%

Now, on rounding to the nearest percent we have:

Relative increase= 11%

You might be interested in
Dave has 25 3/4 feet of piping and needs to cut it in 1 1/2 foot measurements for a project. How many pieces of piping will he e
Ostrovityanka [42]

Answer: 17 1/6 or  17-18

(u guess which is right if its an integer ^^)

Step-by-step explanation:

25 3/4 ÷ 1 1/2

First change the mixed fractions to improper fractions.

<u>25 3/4 </u>= <u>103/4</u>

<u>1 1/2 </u>= <u>3/2</u>

Now divide: 103/4 ÷ 3/2

103/4 * 2/3 (multiply by flipping the second fraction)

= 206/12

Now divide: 206 ÷ 12

= 17 2/12 (<u>simplified:</u> 17 1/6)

<u><em>The answer will be 17 1/6 </em></u> (OR 17-18)

5 0
1 year ago
2x -4y=20<br> X=4<br><br> System of equations
Gennadij [26K]

Answer:

Step-by-step explanation:

2(4) - 4y = 20

8 - 4y = 20

-4y = 12

y = -3

x = 4

(4, -3)

3 0
3 years ago
What’s the quotient of the 1/4 divided by 1/16
dusya [7]
1/4 divided by 1/16 is the same thing as 1/4 times 16/1 so that would multiple to 16/4 which is 4.
3 0
3 years ago
The ingredients for making chocolate cookies are 3/4 cup of brown sugar, 1/4 cup of white sugar, 3/2 cup of butter, 11/8 cup of
Naya [18.7K]

Answer:

\frac{51}{8} cups.

Step-by-step explanation:

It is given that the ingredients for making chocolate cookies are \frac{3}{4} cup of brown sugar, \frac{1}{4} cup of white sugar, \frac{3}{2} cup of butter, \frac{11}{8} cup of flour, and \frac{5}{2} cup of chocolate chips.

Now, we have to calculate the total number of cups of ingredients needed in making chocolate cookies.

So, it will be given by

(\frac{3}{4} + \frac{1}{4} + \frac{3}{2} + \frac{11}{8} + \frac{5}{2}) cups

= \frac{3 \times 2 + 1 \times 2 + 3 \times 4 + 11 + 5 \times 4}{8} cups

= \frac{51}{8} cups. (Answer)

3 0
3 years ago
Suppose the number of free throws in a basketball game by one player are normally distributed with a standard deviation 0.97 fre
babunello [35]

Answer: 1.960

Step-by-step explanation:

The value of z we use to calculate a confidence interval with a (1-\alpha) confidence level is a two-tailed test value i.e. represented by :-

              z_{\alpha/2}

Given : The level of confidence: 1-\alpha=0.95

Then, significance level : \alpha: 1-0.95=0.05

With the help of standard normal distribution table for z , we have

z_{\alpha/2}=z_{0.05/2}=z_{0.025}=1.960

Hence, the value of z should be used to calculate a confidence interval with a 95% confidence level =1.960

3 0
3 years ago
Other questions:
  • Order the following integers from least to greatest:<br> −41,−51,−38, 50, 41 and 13
    8·1 answer
  • B= [2 8] A= [3 0] <br> 6 3 2 -1<br> What is the BA
    6·2 answers
  • 80% as a fraction in simplest form
    8·1 answer
  • Strawberries are $2.50 A pound and cantaloupes are $2.25 at the local supermarket. Sally bought 7 pounds of the two kinds of fru
    14·1 answer
  • What is the square root of 1/9?
    7·1 answer
  • George buys 1.5 pounds of apples, 2.7 pounds of
    11·1 answer
  • Combine like terms to create an equivalent expression. 4\left(1.75y-3.5\right)+1.25y4(1.75y−3.5)+1.25y
    12·2 answers
  • Triangle 1 has known angles of 36° and 64º.
    6·1 answer
  • Ssignment-make sure I can open it.
    5·1 answer
  • Suppose a bank advertises that if you open a savings account with them you can double your money in 5 years. What annual rate ar
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!