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sdas [7]
2 years ago
12

Only one question pls help

Mathematics
1 answer:
lina2011 [118]2 years ago
4 0

Cos x = 5 / 9 ==》 Cos x = 0.55

==》 x = 56 degrees

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Citrus2011 [14]
We need more info to solve sorry
4 0
3 years ago
While on a walk in the country, you pass a field of goats and chickens. After a quick count, you determine there are 38 heads an
Neko [114]

Answer:there are 16 goats and 22 chickens.

Step-by-step explanation:

Let x represent the number of goats in the field.

Let y represent the number if chicken in the field.

After a quick count, you determine there are 38 heads and 108 feet in the field. A goat has one head. A chicken also has one head. It means that

x + y = 38

A goat has four legs. A chicken has 2 legs. It means that

4x + 2y = 108 - - - - - - - - - - - 1

Substituting x = 38 - y into equation 1, it becomes

4(38 - y) + 2y = 108

152 - 4y + 2y = 108

- 4y + 2y = 108 - 152

- 2y = - 44

y = - 44/ - 2

y = 22

x = 38 - y = 38 - 22

x = 16

8 0
3 years ago
What is 3/4 x 2? I tried getting it, but my teacher said it was wrong
Karolina [17]
3/4 x 2/1 = 6/4

Simplify:

6/4 = 3/2

So, 3/2 or 1.5
7 0
3 years ago
Find the commission on a $1,250 sale with a commission rate of 5%.
Nana76 [90]
Essentially, we must take 5% of $1250. When we drop the percent sign, we move the decimal 2 places to the left, giving .05. Then "of" means multiply. We take $1250 and multiply times .05, giving 
<span>$62..50 </span>

<span>Another way to do it is to take 10%, or $125. </span>
<span>Then 5% is half of that. Half of $125 is $62.50 We can do that by dividing $125 by 2. I did it in my head. Others might do it on paper. Still others might have a calculator handy and say $125 divided by 2 on the calculator. We should all get the same answer unless one person spaces out or is tired. It happens!</span>
5 0
3 years ago
Read 2 more answers
Cedric and Insha solved the same equation using the calculations below.
Mariulka [41]

The first working out is correct, z = 3

3 0
3 years ago
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