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drek231 [11]
3 years ago
14

There are 81 red, blue and yellow

Mathematics
2 answers:
kykrilka [37]3 years ago
5 0
You take the 81 counters and pull 9 to the side and that’s 72. take that 72 you divide that by 2 and get 36. so it’s 36 separate blue and yellow counters. there is somehow 9 more red than yellow. which I do not get lol but I did that good.
wel3 years ago
3 0

Step-by-step explanation:

Here Given

Total counters = 81

red counters are 9 more than the yellow ones.

And Yellow counter = blue counter

So let the Yellow counter be x and as blue counter and yellow counter are same then blue counter will be also x

And by the question

Red counter = 9 + x

Now

9 + x + x + x = 81

9 + 3x = 81

3x = 81 - 9

3x = 72

x = 72 / 3

Therefore x = 24

Now

Red counters = 9 + 24 = 33

Blue counters = 24

Yellow counters = 24

Hope it helped :)

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In ABC, b = 68 inches, B=65° and C=93º. Find the length of a, to the nearest<br> inches
sp2606 [1]

Answer:

28inches

Step-by-step explanation:

∠A + ∠B + ∠C = 180°

∠A + 65° +93° = 180°

∠A + 158° = 180°

∠A= 180°-158° = 22°

Using Law of Sines

a/sinA= b/sinB

a/sin22= 68 inches/sin65

a/sin22 = 68/0.9063 = 75.03

a = 75.03 x sin 22

a = 75.03 x 0.3746 = 28.106238≈28 inches

3 0
3 years ago
Please help me! ;_; I’m so lost here if you could help thanks
Gennadij [26K]
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5 0
3 years ago
A) 2(5x – 3) = 24<br> b)<br> 5(2x + 1) = 50
nadezda [96]

Answer:

a) x=3

b) x=4.5

Step-by-step explanation:

2(5x – 3) = 24

10x-6=24

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x=3

5(2x + 1) = 50

10x+5=50

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8 0
3 years ago
If y varies directly with x when y=1/3 and x = 12, find x if y is 4.
Nikitich [7]

Answer:

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Step-by-step explanation:

y α x

we introduce a constant 'k' when changing from α to =.

i.e y = kx

y = ⅓ when x = 12

Meaning, ⅓ = k * 12

⅓ = 12k

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k = 1/36

If y = 4, x = ?

using the equation y = kx

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6 0
4 years ago
2.5 miles is equivalent to 4km​
rosijanka [135]
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8 0
4 years ago
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