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2 years ago

Lindsey is an avid reader and reads 30 pages every 8 days. How many pages per day does Lindsey read?

Mathematics

1 answer:

Romashka [77]2 years ago

8 0

Answer:

You use the total amount divided by the time.

The answer is 30/8, or 15/4

Step-by-step explanation:

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The prism below is made of cubes which measure 1/3 of a centimeter on one side. What is the volume?

Brut [27]

Answer:

the answer is C. 20/27 cubic cm.

Step-by-step explanation:

V = LWH

length 5(1/3 cm)

width 2(1/3 cm)

height 2(1/3 cm)

V = (5/3 cm) (2/3 cm) (2/3 cm)

V = 20/27 cubic cm.

6 0

2 years ago

Read 2 more answers

on a certain hot Summer's Day 613 people use the public swimming pool the daily prices are $1.75 for children $2.25 for adults t

Elodia [21]

389 children and 224 adults were at the pool that day.

Step-by-step explanation:

Cost of one child ticket = $1.75

Cost of one adult ticket = $2.25

Total people = 613

Total receipts worth = $1184.75

Let,

Number of children = x

Number of adults = y

According to given statement;

x+y=613 Eqn 1

1.75x+2.25y=1184.75 Eqn 2

Multiplying Eqn 1 by 1.75

$1.75(x+y=613)\\1.75x+1.75y=1072.75\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(1.75x+2.25y)-(1.75x+1.75y)=1184.75-1072.75\\1.75x+2.25y-1.75x-1.75y=112.00\\0.50y=112.00$

Dividing both sides by 0.50

$\frac{0.50y}{0.50}=\frac{112.00}{0.50}\\y=224$

Putting y=224 in Eqn 1

$x+224=613\\x=613-224\\x=389\\$

389 children and 224 adults were at the pool that day.

Keywords: linear equation, subtraction

Learn more about linear equations at:

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6 0

3 years ago

Not sure how to do these. i need help with 13! needing it to be reduced just like y should be 8

Delicious77 [7]

Answer:

I'm not sure 710

Step-by-step explanation:

I'm not sure

8 0

2 years ago

Read 2 more answers

The first table shows the teams with the four best records halfway through the season. The second table shows the full season re

Allisa [31]

Answer:

Step-by-step eThe first table shows the teams with the four best records halfway through the season. The second table shows the full season records for the same four teams. Which team had the best record during the second half of the season?

Record for the First Half of the Season Record for the Season

Teams Wins Loss Teams Wins Loss

1 26 14 1 59 21

2 27 13 2 27 13

3 25 15 3 25 15

4 24 16 4 24 16

Expert Answer

xplanation:

8 0

3 years ago

Read 2 more answers

A nationwide census is conducted and it is found that the mean number of hours of television watched per year by Americans is 35

Ber [7]

Answer:

Probability that a group of 4 Americans watch more than 400 hours of television per year is 0.3264.

Step-by-step explanation:

We are given that a nationwide census is conducted and it is found that the mean number of hours of television watched per year by Americans is 350 with a standard deviation of 220.

A group of 4 Americans is selected.

Let $\bar X$ = sample mean number of hours of television watched per year

The z score probability distribution for sample mean is given by;

Z = $\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

where, $\mu$ = population mean = 350

$\sigma$ = standard deviation = 220

n = sample of Americans = 4

Now, the probability that a group of 4 Americans watch more than 400 hours of television per year is given by = P( $\bar X$ > 400 hours)

P( $\bar X$ > 400) = P( $\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }$ > $\frac{400-350}{\frac{220}{\sqrt{4} } }$ ) = P(Z > 0.45) = 1 - P(Z $\leq$ 0.45)

= 1 - 0.6736 = 0.3264

The above probability is calculated by looking at the value of x = 0.45 in the z table which has an area of 0.6736.

Hence, the probability that a group of 4 Americans watch more than 400 hours of television per year is 0.3264.

6 0

3 years ago