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
balu736 [363]
3 years ago
10

Robert needs to cut four shelves from a board that is 2.5 meters long the second shelf 18 centimeters longer than twice the leng

th of the first shelf the thrid shelf is 12 cm shorter than the the first shelf the remaining shelf is 4 cm longer than the first shelf if robert must use the entire 2.5 meter board for the shelves egat is the length of the second shelf in cm
Mathematics
1 answer:
Len [333]3 years ago
8 0
Total length of the board = 2.5 meters
                                       =  (2.5 * 100) cm
                                       = 250 cm
Let us assume the length of the first shelf = x
Then
Length of the second shelf = 2x + 18
Length of the third shelf = x - 12
Length of the fourth shelf = x + 4
Now we can easily get the equation as
x + 2x + 18 + x - 12 + x + 4 = 250
5x + 10 = 250
5x = 250 - 10
5x = 240
x = 240/5
  = 48 cm
length of the second shelf = 2x + 18
                                          = 2(48) + 18
                                           = 96 + 18
                                         = 114 cm
So the length of the second shelf is 114 cm.
You might be interested in
30 POINTS!! HELP!!! WILLBEMARKEDBRAINLIEST!!
Verizon [17]

Answer:

sophie used the wrong height for the pyramid

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
The circumference of a circle is 407 cm. Find the diameter, the radius, the length of an arc of 100°, and the area of a sector w
iogann1982 [59]

Answer: 407cm =

100° =

100° =

I hope this helps :)

4 0
2 years ago
A gas grill originally priced at 399 is on sale for 30% off
DanielleElmas [232]

Answer:

Step-by-step explanation:

a = -32

2. x=−3/2 ( which also equals -1.5)

7 0
3 years ago
Find the probability of drawing a green card, not replacing it, and then drawing another green card.
IRISSAK [1]

Answer:

1/15

Step-by-step explanation:

This is probably too late but I'll do it anyway.

There are 10 cards in all.

of the 10, 3 are green.

So your chance of drawing the first green is 3/10

Now you have 9 cards in total left.

Two of them are green

Your chance of drawing a green card again is 2/9

Your total chance of drawing 2 green cards is

2/9 * 3/10 = 6/90

2/9 * 3/10 = 1/15

7 0
2 years ago
The mean of 4 numbers is 19. What would the new mean be if the number 30 is added to the data set?
german

Answer:

B 21.2

Step-by-step explanation:

Im not sure at all tho. But I hope this helps :/

8 0
2 years ago
Other questions:
  • What value(s) of x will make the expression x^2-4/x^2-9 undefined?
    10·1 answer
  • Zeus Industries bought a computer for $2754. It is expected to depreciate at a rate of 27% per year. What will the value of the
    15·2 answers
  • How much pay does john receive if he gives half of his pay to family,250 to his landlord and has exactly 3/7 of his pay left ove
    6·1 answer
  • Seven less than one-third of a number is 5
    13·1 answer
  • A piggy bank contains 20 pennies, 18 nickels, 25 dimes, and 12 quarters. A coin is chosen, it is not replaced and another is cho
    7·1 answer
  • What are the greater than and less than symbols?
    9·1 answer
  • (5x^{2}+3x-1)-(3x^{2}-4x-6)<br> find the difference PLEASE HURRY IM TIMED
    7·2 answers
  • Identify different geometrical shapes associated with Rashtrapati Bhavan.
    5·1 answer
  • Today Antoinette got a new credit card and she made a purchase of $2700
    10·1 answer
  • Find the domain of the function.<br><br><br><br><br>f(x) = -5x + 3
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!