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3 years ago

Bradley wants to carpet his hallway. The hallway is 4 feet wide and 10 feet long. How much carpeting does he need?

Mathematics

1 answer:

Angelina_Jolie [31]3 years ago

4 0

Answer:

49 feet long of carpeting

Step-by-step explanation:

10 feet × 4 feet = 40 feet

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X - 10.2 > 5.3 PLSSSSSS HELP ME SOLVE THIS PROBLEM!!!!...

mamaluj [8]

Answer:

x>15.5

Step-by-step explanation:

x - 10.2 > 5.3

Add 10.2 to both sides

x-10.2+10.2>5.3+10.2

Simplify getting the answer of

x>15.5

6 0

3 years ago

Three geometric progression's P, Q, and R, are such that there sums to infinity are the first three terms respectively of an ari

madam [21]

S= a(1-r ⁿ) /(1-r) & when r is < 1 & n →∞, the sum becomes S= a/(1-r)

Progression P is 2,1, 1/2,1/4,.. ==> r = 1/2
Sum of P when n--> ∞ = 2/(1-1/2) ==> S =4

Progression Q is 3,1,1/3,1/9,....==> r = 1/3
Sum of Q when n--> ∞ = 3/(1-1/3) ==> S =4.5

GIVEN THAT 4, 9/2 & X (to be calculated later is a geometric Progression, hence 9/2 - 4 = 0.5 =d (common difference , so X = 4.5+0.5 & X = 5

Sum of R =5 Then => 5= 4 /(1-r) & r=1/5
Then the sum of R = 4/(1-1/5) ==> S of R =5

3 0

4 years ago

4,000,900 divided by 1,000

kirill115 [55]

4,000.9 is the answer

3 0

3 years ago

Read 2 more answers

Please help i reallly need it

Bezzdna [24]

Answer:

300 in³

Step-by-step explanation:

The volume is:

V = Bh, where B- area of base, h - height

Find the area of base, which is the trapezoid:

B = 1/2*(5 + 7.5)*6 = 37.5 in²

Find the volume:

V = 37.5*8 = 300 in³

7 0

2 years ago

Of 560 marbles in a bag, 65% are red and the rest are blue. After 28 red marbles are replaced with blue ones, how many blue marb

jonny [76]

Answer: The answer is 400 blue marbles.

Step-by-step explanation: Given that there are 560 marbles in a bag, out of which 65% are red and rest are blue.

So, number of red marbles is

$n_r=65\%\times 560=\dfrac{65}{100}\times 560=364,$

and number of blue marbles is

$n_b=560-364=196.$

Now, if 28 red marbles are replaced by blue marbles, the the new number of red and blue marbles will be

$n_r^\prime=364-28=336~~~\textup{and}~~~n_b^\prime=196+28=224.$

Now, to get 65% of the marbles blue, we need to add some more blue marbles to the bag. Let 'x' number of blue marbles are added to the bag, then

$65\%\times (560+x)=224+x\\\\\Rightarrow \dfrac{65}{100}\times (560+x)=224+x\\\\\Rightarrow 13(560+x)=20(224+x)\\\\\Rightarrow 7280+13x=4480+20x\\\\\Rightarrow 7x=2800\\\\\Rightarrow x=400.$

Thus, 400 blue marbles need to be added to the bag.

5 0

4 years ago

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