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3 years ago

If a 15 foot tree cast a 40 foot shadow, how tall is a tree that cast 64-foot shadow

Mathematics

1 answer:

marissa [1.9K]3 years ago

4 0

Answer:

24 feet

Step-by-step explanation:

Set up a ratio which is 15/x=40/64 and cross multiply to get 960=40x and divide to get 24

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The yearbook club had a meeting. The meeting had 24 people, which is three-fourths of the club. How many people are in the club?

Leto [7]

Answer:

Brainiest plz? :)

8 0

2 years ago

Oh no! Thomas is lost in the GGBL building after an exam, and trying to get out. Thereare four identical hallways leading away f

Brums [2.3K]

Answer:

Check the explanation

Step-by-step explanation:

Since each and every one of the 4 hallways is equally likely then

$P(H1)=1/4P(H2)=1/2P(H3)=1/4$

Now, if he chooses H1 he escapes after 12 minutes then

$E(T|H1)=12$

If he chooses H2 then he wastes 10 minutes and then he is again in the same starting

position so he expects to escape in E(T) minutes, then

$E(T|H2)=10+E(T)$

Analogously, if he chooses H3 then he wastes 40 minutes and then he is again in the same starting

position so he expects to escape in E(T) minutes, then

$E(T|H3)=40+E(T)$

Therefore

$E(T) = E(T|H1)P(H1) + E(T|H2)P(H2) + E(T H3)P(H3) = (12) + (E(T) +10) + (E(T) + 40) = 3+ *E(T)+5+ 10 = E(T) +18 CON A'$

So we have

$E(T) = E(T) + 18 E(T) = 18 E(T) = 4(18) = 72$

Therefore he is expected to escape in 72 minutes

7 0

3 years ago

The radius of a circle is 6 kilometers. What is the circle's area?

Marysya12 [62]

Answer:

113.04 km²

Step-by-step explanation:

Formula - Area = πr²

= 3.14 * 6²

= 113.04 km²

7 0

2 years ago

Expand and simplify (x+5)(x+6)

seraphim [82]

Answer:

Step-by-step explanation:

(

)

(

)

{\color{#c92786}{(x+5)(x+6)}}

(x+5)(x+6)

(

)

(

)

6 0

2 years ago

Find the cost per visit to the nearest cent: Health and Heart Club, $259 per year, 3 visits per week. a. $1.66 b. $7.19 c. $156

vagabundo [1.1K]

Answer:

a. $1.66

Step-by-step explanation:

We have been given that Health and Heart Club charges $259 per year. A person has 3 visits per week. We are asked to find the cost of per visit to Health and Heart Club.

We know that there are 52 weeks in one year. So total visits in one year would be 3 times 52 that $156$ visits.

Now, we will divide total cost by 156 to find cost per visit.

$\text{Cost per visit}=\frac{\$259}{156}$

$\text{Cost per visit}=\$1.660256$

Rounding to nearest hundredths, we will get:

$\text{Cost per visit}\approx \$1.66$

Therefore, the cost per visit is $1.66 and option 'a' is the correct choice.

5 0

2 years ago