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Inessa05 [86]
3 years ago
10

a 15 foot tree casts a shadow 20 3/4 feet long at the same time a nearby building casts a shadow 166 feet long, how tall is the

building
Mathematics
1 answer:
Lelechka [254]3 years ago
8 0

Answer: the height of the tree is 27 feet

Step-by-step explanation: We can set up a proportion comparing the height of each object to the length of the shadow.

h s

h 15 = 18

       10

Cross multiply

10 ⋅ h = 18 ⋅ 15

10 h = 270

Use the multiplicative Inverse

10

h

10

=

270

10

h = 27

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Una araña comió 25%, percent más bichos este mes que el mes pasado. La araña comió 8 bichos el mes pasado
lesantik [10]

For this case we have that the complete question is:

A spider ate 25% more bugs this month than last month. The spider ate 8 bugs last month. How many bugs did the spider eat this month?

So, we propose a rule of three:

8 bugs -----------> 100%

x -----------------------> 25%

Where the variable "x" represents the number of bugs equivalent to 25%.

x = \frac {25 * 8} {100}\\x = 2

Thus, 2 bugs represent 25%

If this month the spider ate 25% more, then it ate:

8 + 2 = 10

Answer:

This month, the spider ate 10 bugs

7 0
4 years ago
Read 2 more answers
What are the results of <br> (3 + 1) + 27 ÷ 9 =
tatuchka [14]

Answer:

3.4

Step-by-step explanation:

PEMDAS: Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

(3+1)=4

4+27=31

31 ÷9=3.4

(hope this helped)

8 0
3 years ago
The area of a triangle is 400 square feet. Height of the triangle is 50 feet. What is the length of the base?
tatuchka [14]

Answer: 8

Because you have to divide 400 into 50 to  get the answer 8

7 0
4 years ago
How do you solve this problem? 6 x 2/5 =
Zanzabum
You have to make 2/5 into a whole number , in this case a decimal
2/5 in decimal form = 0.4 
To make it easier for you 0.4 by 10 and then it will become  4
So 6x4=24
Then divide by 10 which will become 2.4
The answer is 2.4

8 0
3 years ago
Can someone help!!!!!!
UkoKoshka [18]

Answer:

1) 26

2) 6.5

the sum of numbers/ number of them

7 0
3 years ago
Read 2 more answers
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