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
liq [111]
3 years ago
6

I need to know an answer to an equation 2 2/5w = 21 3/5

Mathematics
1 answer:
Misha Larkins [42]3 years ago
8 0

Answer:

w = 9

Step-by-step explanation:

Firstly, change the mixed numbers to improper fractions, that is

\frac{12}{5} w = \frac{108}{5} ( multiply both sides by 5 )

12w = 108 ( divide both sides by 12 )

w = 9

You might be interested in
Marcus earns money from feeding cats and answering emails. He earns $7 a week for each cat he feeds and $0.20 for each email he
Dmitry_Shevchenko [17]
A.
7 times number of cats=pay
if pay=49 then
7 times number of cats=49
divide both sides by 7
number of cats=7

da equaton can be
c=number of cats
7c=49

he fed 7 cats


B.

7c=49
divide both sides by 7
equality property of division
(7c)/7=49/7
math fact
(7/7)c=7
1c=7
identity property of division
c=7
identity property of multiplication
7 cats

C. 7 cats
4 0
3 years ago
The U.S. Census Bureau conducts a study to determine the time needed to complete the short form. The Bureau surveys 200 people.
OLga [1]

Answer:

The z-distribution should be used for this problem.

Step-by-step explanation:

The population distribution is assumed to be normal. Which distribution to use?

If we have the standard deviation for the sample, we use the t-distribution.

If we use the standard deviation for the population, we use the z-distribution.

There is a known standard deviation of 2.2 minutes.

This means that 2.2 is the population standard deviation, and thus, the z-distribution should be used for this problem.

4 0
3 years ago
Recall that Rn denotes the right-endpoint approximation using n rectangles, Ln denotes the left-endpoint approximation using n r
pogonyaev

Answer:

R_5=1.12

Step-by-step explanation:

We want to calculate the right-endpoint approximation (the right Riemann sum) for the function:

f(x)=x^2+x

On the interval [-1, 1] using five equal rectangles.

Find the width of each rectangle:

\displaystyle \Delta x=\frac{1-(-1)}{5}=\frac{2}{5}

List the <em>x-</em>coordinates starting with -1 and ending with 1 with increments of 2/5:

-1, -3/5, -1/5, 1/5, 3/5, 1.

Since we are find the right-hand approximation, we use the five coordinates on the right.

Evaluate the function for each value. This is shown in the table below.

Each area of each rectangle is its area (the <em>y-</em>value) times its width, which is a constant 2/5. Hence, the approximation for the area under the curve of the function <em>f(x)</em> over the interval [-1, 1] using five equal rectangles is:

\displaystyle R_5=\frac{2}{5}\left(-0.24+-0.16+0.24+0.96+2)= 1.12

3 0
2 years ago
Help quick please help hep
____ [38]

Answer:

8

Step-by-step explanation:

There are 4 people that are 27 and 4 people that are 29. Both are <em>older</em> than 26.

4 0
2 years ago
Help me please, i’m confused. thanks!
harkovskaia [24]

Answer:

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Other questions:
  • Write a story that matches the expression 42x - 5
    11·1 answer
  • 4.66666666667 as a fraction. (They all put 466666666667/100000000000)
    6·2 answers
  • Which of the following options is the last step in calculating your net worth? listing your liabilities finding total assets and
    8·2 answers
  • What does (3+2) 2-7=
    7·1 answer
  • A cylindrical can without a top is made to contain 25 3 cm of liquid. What are the dimensions of the can that will minimize the
    15·1 answer
  • If u understand this May u please help me
    9·1 answer
  • (cosx - sinx)(secx + cscx) = cotx - tanx
    6·1 answer
  • A survey of students at a university shows that 4 out of 5 drink coffee. Of the students who drink​ coffee, 1 out of 6 adds crea
    12·1 answer
  • How many 6 digit combinations are there using only numbers 1-9?
    8·1 answer
  • If (x+iy)³ = y+vi then show that (y/x + v/y) = 4(x²-y²)​
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!