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
earnstyle [38]
3 years ago
11

Please help!! I don't know how to do this!!​

Mathematics
1 answer:
dolphi86 [110]3 years ago
4 0
40/28=10/x
Butterfly method
40x=280
/40 /40
x=7
EG is 7
You might be interested in
Starting value 100 increases 5%
Brut [27]

Answer:

105

Explanation:

Adding 5% of 100, to 100 is:

100(0.05) + 100

The extra 100 is added because 100(0.05) only gives you what 5% of 100 is.

3 0
3 years ago
Which property does each equation demonstrate?
abruzzese [7]

Answer:

it demonstartes a algebraic property

Step-by-step explanation:

3x#

=8=9=

=67

8 0
3 years ago
Express each fraction as a percent 7/20
Sergio [31]
<span>To find out what percent 7 out of 20 is, we need to ask: 7 out of 20 is how many out of 100? 5 groups of 20 make 100, so 7 out of 20 is 35 out of 100 (5 x 7 out of 5 x 20). Therefore 7/20 equals 35%, or 0.35 if we represent it as a decimal. I hope this helps</span>
4 0
3 years ago
Read 2 more answers
Intravenous fluid bags are filled by an automated filling machine. Assume that the fill volumes of the bags are independent, nor
kenny6666 [7]

Answer:

a) 0.0167

b) 0

c) 5.948

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 6.16 ounces

Standard Deviation, σ = 0.08 ounces

We are given that the distribution of fill volumes of bags is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

a) Standard deviation of 23 bags

\displaystyle\frac{S.D}{\sqrt{23}} = \frac{0.08}{\sqrt{23}} = 0.0167

b) P( fill volume of 23 bags is below 5.95 ounces)

P(x < 5.95)

P( x < 5.96) = P( z < \displaystyle\frac{5.95 - 6.16}{0.0167}) = P(z < -12.57)

= 1 - P(z < 12.57)

Calculation the value from standard normal z table, we have,  

P(x < 5.95) = 1 - 1 = 0

c) P( fill volume of 23 bags is below 6 ounces)  = 0.001

P(x < 6)  = 0.001

P( x < 6) = P( z < \displaystyle\frac{6 - \mu}{0.0167})

Calculation the value from standard normal z table, we have,  

P( z \leq -3.09) = 0.001

\displaystyle\frac{6 - \mu}{0.0167} = -3.09\\\\\mu = 6 + (0.0167\times -3.09) = 5.948

If the mean will be 5.948 then the probability that the average of 23 bags is below 6.1 ounces is 0.001.

7 0
3 years ago
Use pi = 3.14 to estimate the circumference of the circle to the nearest hundredth.
Nookie1986 [14]
Not enough info to answer
8 0
2 years ago
Read 2 more answers
Other questions:
  • The sum of two numbers is 14. The first number 2/5<br> of the second number. What are the numbers?
    11·1 answer
  • What number is less than 8​
    10·2 answers
  • A single die is rolled. find the probability of rolling an odd number or a number less than 4.
    10·1 answer
  • Josh made a collage using magazine cut outs from comic books. He used a total of 58 magazine cut outs and 28 cut outs from comic
    12·1 answer
  • Solve the proportion 2/10=11/x
    13·1 answer
  • Drag the tiles to the correct boxes to complete the pairs.
    6·1 answer
  • Please help meeee with this problem
    13·2 answers
  • -24 + 12d = 2(d-3) + 22
    6·2 answers
  • For each equation, find a value for x that makes the statement true
    6·1 answer
  • Rubin has 6 rolls of pennies containing 50 coins each, 5 rolls of nickels
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!