the length of a retangle is twice its width. The perimeter of the rectangle is 126 feet. Write an equation .

Sally had 1000 photos to put into a photo album.She set 10 photos aside to place in frames.If her photo album fits 3 photos per

Kruka [31]

Answer:

Sally needed 330 pages of album to place her photos in it.

Step-by-step explanation:

Given:

Total number of photos = 1000

Number of photos kept aside to be place in frame = 10

Number of photos in per page of album = 3

We need to find the number of pages needed to place the photos in album.

Solution:

First we will find the number of photos to be place in album.

Now we know that she kept aside some photos which has to be frame framed.

So number of photos to be place in album can be calculated by Subtracting Number of photos kept aside to be place in frame from Total number of photos

framing in equation form we get;

number of photos to be place in album = 1000 - 10 = 990 photos

Now we will find number of pages needed to place the photos in the album.

number of pages needed to place the photos in the album can be calculated by dividing number of photos to be place in album with number of photos in per page of album.

framing in equation form we get;

number of pages needed to place the photos in the album = $\frac{990}{3}= 330\ pages.$

Hence Sally needed 330 pages of album to place her photos in it.

6 0

2 years ago

5. Twenty-five sixth-grade students entered a math contest consisting of 20 questions. The student who

Grace [21]

Answer:

two coins are flipped:

if dime land heads and nickel land heads then Allan wins

if dime land heads and nickel land tail then Beth wins

if dime land tail and nickel land heads then Carlos wins

if dime land tail and nickel land tail then Denesha wins

Step-by-step explanation:

The method described above is fair since the probability of each case is 0.25.

If the two coins are flipped:

The probability dime land head is 0.5

The probability dime land tail is 0.5

The probability nickel land head is 0.5

The probability nickel land tail is 0.5

Then the probability dime land heads and nickel land heads is 0.5 × 0.5 = 0.25.

The other four cases are calculated similarly and their probability is also 0.25

6 0

3 years ago

The capacity of a cylindrical water tank is 539 litres. If its height is 1.4 meter then find the radius of the base.

natulia [17]

Answer:

350m

Step-by-step explanation:

capacity= volume/1000
but we know that volume of cylinder is πr²h so substitute it I'm the volume space
then substitute for π as 22/7, h as 1.4 , and also capacity as 539
539= ((22/7)×r²×1.4)/1000
when you simplify you get r as 350m

6 0

2 years ago

the sum of the 10th and 11th terms of an arithmetic sequence is 65 what is the sum of its first 20th terms

Dmitriy789 [7]

Answer:

this is the answer

Step-by-step explanation:

a 65

b 650

c 52

d 3

6 0

2 years ago

Line HJ bisects BC at point H<br> BH = 5x - 1<br> and HC =4x + 3<br> Frd the length of BC

Levart [38]

Answer:

Step-by-step explanation:

5x - 1 = 4x + 3

x - 1 = 3

x = 4

5(4) - 1 + 4(4) + 3

20 - 1 + 16 + 3

19 + 16 + 3 = 35 + 3 = 38

8 0

3 years ago