2 years ago

What are the Ratio 4:5 and 8:10?

Mathematics

1 answer:

miv72 [106K]2 years ago

3 0

Answer:

4/5 = 80% and 8/10 = 80%

Step-by-step explanation:

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8m + 5n for m= 3 and n=-5

sasho [114]

Answer:

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Step-by-step explanation:

8m + 5n

8(3) + 5(- 5)

24 + (- 25)

24 - 25

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2 years ago

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Sasha can run at an average speed of 9 3/4 min/mi. She runs at this speed for 68 1/4 min.

miv72 [106K]

9 3/4 = 39/4 mi/m

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3 years ago

Can a triangle be drawn with the following side lengths? Why or why not?

Ghella [55]

Yes, because it still have 3 sides.

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2 years ago

Prove that <br><img src="https://tex.z-dn.net/?f=4cot45%20%5E%7B2%7D%20%20-%203tan%20%5E%7B2%7D%2060%20%2B%202sec%20%5E%7B2%7D60

sesenic [268]

Answer:

$4 \cot {}^{2} (45) - 3 \tan {}^{2} (60) + 2 \sec {}^{2} (60) = 3 \\$

$LHS = 4 \cot {}^{2} (45) - 3 \tan {}^{2} (60) + 2 \sec {}^{2} (60) \\$

let us first take a look at the values of the trigonometric ratios given in the question so that we get quite clear about what is to be done.

here ,

$\cot(45) = 1 \\ \\ \tan(60) = \sqrt{3} \\ \\ \sec(60) = 2$

now ,

we just have to plug in the values considering certain other things given in the question and we're done!

so let's start ~

$4(1) {}^{2} - 3( \sqrt{3} ) {}^{2} + 2(2) {}^{2} \\ \\ \dashrightarrow \: 4(1) - 3(3) + 2(4) \\ \\ \dashrightarrow \: 4 - 9 + 8 \\\\ \dashrightarrow \: 12 - 9 \\ \\\dashrightarrow \: 3 = RHS$

hence , proved ~

hope helpful :D

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2 years ago

PLEASE ANSWER ASAP!<br> Five tickets to a carnival cost $45. How much would seven tickets cost?

Svetllana [295]

45 (price of them) divided by 5 (the amount of tickets) = £9
one ticket = £9
so 9 (the price of one ticket) x 7 (the number of tickets) is £63
the answer is 63.

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2 years ago

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