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2 years ago

If a 12-foot-tall object casts a 9-foot shadow, how long a shadow would a 4-foot-tall object cast at the same time and place

Mathematics

1 answer:

marin [14]2 years ago

7 0

Answer:

I think it is 3 feet

Step-by-step explanation:

12:9 is equal to 4:3

4:? should also be equal to 4:3, so ?=3

Hope this helps

let me know if it does and if it is right

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What number plus 2 less than 3 times the number equals 14

Afina-wow [57]

Obviously this will be a negative number

-2 - 14 = 5x - 3x

-16 = 2x

x = %28-16%29%2F2

x = -8 is the number

Check solution in the original statement: x=-8

3(-8) - 2 = 5(-8) + 14

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3 years ago

100 x 9/5 what is the answer????? PLZ HELP!!!!!!

dem82 [27]

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3 years ago

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1/10 of 400,000 is 10 times as much as?

mote1985 [20]

40,000 is the answer

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4 years ago

If 10^2y = 25, then 10^-y equals: (a) -1/5 (b) 1/625 (c) 1/50 (d) 1/25 (e) 1/5

Gemiola [76]

<h3>given:</h3>

$10 ^{2y} = 25$

${10}^{y} = .......$

<h3>solution:</h3>

$10 ^{2y} = 25$

$(10y {)}^{2} = {5}^{2}$

$10y = 5$

$\frac{1}{ {10}^{y} } = \frac{1}{5}$

${10}^{ - y} = \frac{1}{5}$

therefore, the correct answer is option E.

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2 years ago

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Josh had to make 2,000 cookies for his bakery. 2 pieces of wheat make 8 cookies. How much wheat does he need?

Licemer1 [7]

Answer: 500 pieces of wheat

Explanation:

First: set up the proportion
Cookies:wheat = 8:2
Simplify = 4:1
We need to find how much wheat he needs for 2,000 cookies.
We need to assign a variable for wheat
Wheat = W
If Josh needs to make 2,000 cookies he would need W amount of wheat
Original proportion = 4:1
For 2,000 cookies = 2,000:W
To get from 4 to 2,000
2,000/4 = 500
So W/1 = 500
Isolate the variable:
w/1 (1) = 500/1
W = 500

4 0

2 years ago