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vlabodo [156]
3 years ago
8

Why can you use cross products to solve the proportion 18/5 = x/100 for x?

Mathematics
2 answers:
nikklg [1K]3 years ago
6 0

Answer:

B  

Just took the test

skad [1K]3 years ago
3 0

im not 100% sure but im pretty sure it is B

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You type 4500 words per hour. How many words do you type<br> per minute?
sattari [20]

Answer:

<u>you type </u><u>75</u><u> words per minute.</u>

Step-by-step explanation:

since there are 60 minutes in an hour, simply divide 4,500 by 60 to get 75. i hope this helps you! good luck and have a great day. :)

7 0
3 years ago
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Can't anybody help me with this ik math sucks but help
Agata [3.3K]

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g

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6 0
3 years ago
Yu Xing paid 3.60 dollar for 2 pens after a 10 percent discount .What was the usual price of 1 pen.
notka56 [123]

Answer:

2 $

Step-by-step explanation:

let the original price be x

price after 10% discount = 3.60$

x -  \frac{10}{100} \times x = 3.60

\frac{100x - 10x}{100}  = 3.60 \\  \frac{90x}{100}  = 3.60 \\ 9x = 36 \\ x = 4

The original price of 2 pens is 4$

original price of one pen = 4/ 2

<u>= 2 $</u>

8 0
3 years ago
PLEASE HELP!! WILL AWARD BRAINLIST TO WHOEVER HAS ALL THE CORRECT CALCULATIONS!
Gekata [30.6K]

Law of cosine:

c² = a² +b² -2ab*cosC.

Because the triangle is equilateral a=b=c=x,

and we can write,

x²=x² +x² -2xx*cosC

x² =2x² -2x²* cos C

-x² = -2x²*cos C

cos C= 1/2,

so m∠C=60⁰.

Because all sides are equal, and across of the equal sides should be equal angles, all angles will be also equal and = 60⁰.

8 0
3 years ago
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The length of a rectangular pool is
Natali [406]

Answer:

4L-8

Step-by-step explanation:

Formula: L+L+(L-4)+(L-4)

=L+L+L-4+L-4

=4L-8 (hope this explains you the problem)

5 0
3 years ago
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