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
bogdanovich [222]
3 years ago
13

The scale on a drawing is 2:in:5yd. If a length on the drawing is 6 inches, what is the actual length.

Mathematics
1 answer:
Svetach [21]3 years ago
3 0

Answer:

15 yards

Step-by-step explanation:

proportion:

2/5:6/X

2x=30

x=15

You might be interested in
A chemist examines 12 sedimentary samples for bromide concentraction. The mean bromide concentration for the sample date is 0.43
Umnica [9.8K]

Answer:

a) z = 1.645

b) Lower endpoint: 0.422cc/m³

Upper endpoint: 0.452 cc/m³

Step-by-step explanation:

Population is approximately normal, so we can find the normal confidence interval.

We have that to find our \alpha level, that is the subtraction of 1 by the confidence interval divided by 2. So:

\alpha = \frac{1-0.9}{2} = 0.05

Now, we have to find z in the Ztable as such z has a pvalue of 1-\alpha.

So it is z with a pvalue of 1-0.05 = 0.95, so z = 1.645. This is the critical value, the answer for a).

Now, find M as such

M = z*\frac{\sigma}{\sqrt{n}}

In which \sigma is the standard deviation of the population and n is the size of the sample.

M = 1.645*\frac{0.0325}{\sqrt{12}} = 0.015

The lower end of the interval is the sample mean subtracted by M. So it is 0.437 - 0.015 = 0.422cc/m³.

The upper end of the interval is the sample mean added to M. So it is 0.437 + 0.015 = 0.452 cc/m³.

b)

Lower endpoint: 0.422cc/m³

Upper endpoint: 0.452 cc/m³

4 0
3 years ago
Name the parts of the expression then, write it in expanded form. a. 14b b.30jk
Makovka662 [10]

Answer:

a. 14 is a coefficient, and b is a variable.

This can be expanded to 14*b

b. 30 is a coefficient, and j and k are variables.

This can be expanded to 30*j*k

3 0
2 years ago
I'm not understanding which statement is correct, to me they all look wrong
neonofarm [45]

Answer:

it is the third option because -3.2 is greater than -5.4

Step-by-step explanation:

4 0
2 years ago
Read 2 more answers
30 treadmills to 36 elliptical machines the ratio in simplest form
Goshia [24]
30 treadmills : 36 ellipticals
this could be written in a few ways, but i am going to write it as a fraction. since treadmills come first, you put 30/36.

now that you have your fraction you have to find the GCF (greatest common factor) of the two numbers. the GCF is 6, so you have to divide 30 treadmills by 6, and 36 ellipticals by 6.
30/6=5
36/6=6

5/6 or 5:6 is the simplified ratio of treadmills to ellipticals



comment for any questions!!
4 0
3 years ago
Is the following relation a function (0.3, 0.6), (0.4,0.8), (0.3, 0.7), (0.5,0.5)
Elena L [17]

Answer is B...........

3 0
3 years ago
Other questions:
  • Jeanne babysits for 6 per hour . She also works as a reading tutor for 10 per hour . She is only allowed to work20 hours per wee
    6·1 answer
  • The monthly payment for a car lease is $300 for 24 months. The down payment is $1,000. The residual value is $9,000. What is the
    8·2 answers
  • Find 2% of 14. Do not round your answer
    10·1 answer
  • (X+3)(x+5)<br><br> Expand and simplify?
    8·2 answers
  • What’s the answer ???<br><br> V/8=5-3
    13·1 answer
  • Can a triangle have sides with the given​ lengths? Explain.
    5·1 answer
  • Ethan is 1.6 metres tall, Uzma is 154 cm tall.<br> Work out how much taller Ethan is than Uzma.
    13·1 answer
  • I need help with this questions ASAP!
    12·1 answer
  • For the following diagram l, create an equation to solve for x:
    6·1 answer
  • Find the 53rd term of the arithmetic sequence -12, -1, 10
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!