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
Anettt [7]
3 years ago
11

the cost of old boiler is £775 per year,the new one is £1850 ,the cost of using a new boiler will be 1/5 less than the cost of u

sing the opd boiler. how many years will it take for the savings feom cost of using nthe new boiler to total £1850​
Mathematics
1 answer:
Tanya [424]3 years ago
4 0

Answer:

I think its 12.3 years

Step-by-step explanation:

a fifth of 775 is 155 and 155 x 12.3 = 1850

You might be interested in
A waiter earns $11.00 an hour and approximately 10% of what he serves in a shift. If he works a 6 hour shift and takes $425 in o
Kazeer [188]

Answer:

108.50

Step-by-step explanation:

First find the wages

11* 6 = 66 dollars

Then figure the commission

10% of 425

.10 * 425

42.5

Add the two amounts together

42.5+66

108.50

8 0
3 years ago
What is an equation in slope-intercept form of the line that passes through (6, −7)
Ber [7]

Answer:

y = -7/6x

Step-by-step explanation:

y - y1 = m*(x-x1)

m=y/x

y - (-7) = -7/6*(x-6)

y + 7 = -7/6x + 7

y = -7/6x + 7 - 7

y = -7/6

4 0
3 years ago
Consider the inequality -3 &lt; x &lt; 6.<br> Whats the endpoint of this interval
Nostrana [21]

Answer:5

Step-by-step explanation:

8 0
3 years ago
2X- 10 =30 solve for X
Kazeer [188]
2x - 10 = 30
2x = 40
x = 20
5 0
3 years ago
Read 2 more answers
How do you find the center of dilation for a negetive dilation?​
Andrei [34K]

the Answer:

Notice that the "image" triangles are on the opposite side of the center of the dilation (vertices are on opposite side of O from the preimage). Also, notice that the triangles have been rotated 180º.

Step-by-step explanation:

A dilation is a transformation that produces an image that is the same shape as the original but is a different size. The description of a dilation includes the scale factor (constant of dilation) and the center of the dilation. The center of dilation is a fixed point in the plane about which all points are expanded or contracted. The center is the only invariant (not changing) point under a dilation (k ≠1), and may be located inside, outside, or on a figure.

Note:

A dilation is NOT referred to as a rigid transformation (or isometry) because the image is NOT necessarily the same size as the pre-image (and rigid transformations preserve length).

What happens when scale factor k is a negative value?

If the value of scale factor k is negative, the dilation takes place in the opposite direction from the center of dilation on the same straight line containing the center and the pre-image point. (This "opposite" placement may be referred to as being a " directed segment" since it has the property of being located in a specific "direction" in relation to the center of dilation.)

Let's see how a negative dilation affects a triangle:

Notice that the "image" triangles are on the opposite side of the center of the dilation (vertices are on opposite side of O from the preimage). Also, notice that the triangles have been rotated 180º.

5 0
2 years ago
Read 2 more answers
Other questions:
  • Anyone know this ???
    9·1 answer
  • Which of the following transformations does NOT maintain congruence?
    12·1 answer
  • How to simplify 2a³ × a⁴​
    14·2 answers
  • Please help if you can.​
    7·1 answer
  • Please help me!! Picture attached!!
    12·2 answers
  • If m = 80° and m = 40°, then m 2 =<br><br> A)20<br> B)40<br> C)60
    11·1 answer
  • Transitive Property of Congruence<br> If MN = LK and LK = OP, then
    8·2 answers
  • The number of people using an older version of a spreadsheet program decreases at a rate that is proportional at any time to the
    15·1 answer
  • C•C (c=4) evaluating expressions
    10·1 answer
  • Possible
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!