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kakasveta [241]
2 years ago
13

Sophia finished 2/3 of a book. She calculated that she finished 90 more pages than she has yet to read. How long is her book?

Mathematics
1 answer:
TEA [102]2 years ago
6 0

Answer:

The book is 270 pages long.

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Hear is a diagram showing a mixture of red paint and green paint needed for 1 batch of a particular shade of brown
Lelechka [254]

From the diagram above

mixtures of 3 cups of red paints and 2 cups of green paints for 1 batch

this means for every one batch of brown paint

you have 3 cups of red paints and 2 cups of green paints

for three batches

3 red cups + 3 red cups + 3 red cups = 9 reds cup

2 green cups + 2 green cups + 2 green cups = 6 greens cup

to produce three batches you will need the mixture of 9 red cups of paints and 6 green cups of paint

adding to the diagram you will have 6 more red cups and 4 more green cups

4 0
1 year ago
According to a college survey 32% of all students work fulltime. Find the mean for the number of students who work full time in
VLD [36.1K]

Answer:

mean is equal to 5.12

Step-by-step explanation:

<em>We are given that 32% of college students work fulltime. We have to find the mean for the number of student s who are working full time in a sample of 16</em>

success rate, p = 32% = 0.32

Sample size is denoted as n = 16

The forumla of mean is given as

mean = sample size × success rate

mean = n × p

         = 16 × 0.32

         = 5.12

3 0
2 years ago
Which gives 1600 m in km? (A) 16,000 (B)1600 (C)16 (D)1.6 (ALL ARE KM!)
Sloan [31]
1600m = 1600 ÷ 1000 = 1.6 km

Answer: 1.6 km
7 0
3 years ago
One month, ruby worked 8 hours more than isaac, and svetlana worked 4 times as many hours as ruby. together they worked 136 hour
Travka [436]

Let Issac work for x hours, and Ruby works 8 hours more than of Issac, so Ruby work for (x+8) hours.

And Svetlana worked four times of Ruby, therefore Svetlana worked for

4(x+8) hours

And total hours they worked together is 136. That is

x+x+8 + 4(x+8) = 136&#10;\\&#10;x+x+8 +4x+32=136&#10;\\&#10;6x+40 =136&#10;\\&#10;6x=96&#10;\\&#10;x =16 hours

So Issac worked for 16 hours, Ruby worked for 24 hours and Svetlana worked for 24 times 4 equals 96 hours .


6 0
3 years ago
You double the radius of a sphere. How does this affect the volume?
Afina-wow [57]
The volume of a sphere is defined as:
V=(4*pi*r^3)/3
then, if we double the radius of the sphere (r=2r):
V=(4*pi*(2r)^3)/3
V=(4*pi*(2^3*r^3))/3
V=(4*pi*r^3)/3*8

Then, the answer is that if you double the radius of the sphere, its volume is increased 8 times.
5 0
3 years ago
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