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kiruha [24]
3 years ago
9

Find the value of X and Y

Mathematics
1 answer:
Svet_ta [14]3 years ago
8 0

Answer:

y=60 degrees ; x=120 degrees.

Step-by-step explanation:

All triangles' angles must add up to 180 degrees. An equilateral triangle has 3 equal sides and degrees. If it gives the angle of one all the other angles are the same. For x you see the parallel line below it with the line to the left going through with the same angle as the one below. The angles are the same and if it is labeled in one then it is the same in the other.

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Is 17 heartbeats in 15 seconds a unit rate? Why or why not?
g100num [7]
No, because it is not per second. You would have to simplify to per one second for it to be a unit rate. Hope it helps! :)
8 0
3 years ago
If a right triangle's hypotenuse is 17 units long, and one of its legs is 15 units long, how long is the other leg?
Vesna [10]

Answer:

8 units

Step-by-step explanation:

Hello!

So, there's a formula we can apply to right-angled triangles: Pythagorean's theorem. It states that  c = \sqrt{{a}^2 + b^{2} }, where <em>c</em> is the hypotenuse and <em>a</em> and <em>b </em>are the legs of the triangle.

So, from the problem,  if <em>c </em>= 17 and <em>a </em> = 15, then, we're solving for <em>b</em>. So we'll rewrite the theorem to solve for <em>b</em>.

{c}^2 = {a}^2+{b}^2\\{c}^2-{a}^2={b}^2\\{b} = \sqrt{{c}^2-{a}^2}

Okay, so now we have isolated the theorem for <em>b. Let's </em>plug in our values for <em>c </em>and <em>a</em>.

b = \sqrt{{17}^2-{15}^2}\\b = \sqrt{289-225}\\b = \sqrt{64}\\b = 8

So, using the theorem, we found <em>b</em> = 8. To check our work, let's plug in <em>b</em> and <em>a</em> and solve for <em>c.</em>

<em />c = \sqrt{{a}^2+{b}^2}}\\c = \sqrt{{15}^2+{8}^2}\\c = \sqrt{225+64}\\c = \sqrt{289}\\c = 17\\<em />

So, we got our hypotenuse to equal 17 units, which is correct! So, our <em>b</em> is correct too. Awesome

7 0
3 years ago
Five times a number divided by 3 equals 35. WHats the solution
iren [92.7K]

5x/3=35

5x = 35*3=105

x= 105/5 = 21

 double check 5 x 21 = 105

105/3 = 35

3 0
3 years ago
Read 2 more answers
Confused, what am I supoosed to be doing here? x+10=18
Vanyuwa [196]

<u><em>Answer: x=8</em></u>

Step-by-step explanation:

subtraction property of equality is subtracting the same number from both sides of an equation does not change the equation.

subtract by 10 from both sides of an equation.

x+10-10=18-10

simplify

18-10=8

<u><em>x=8</em></u>

Hope this helps!

Thanks!

Have a great day!

8 0
4 years ago
Read 2 more answers
Odell spends $55 on supplies to make holiday crafts to sell at a local fair. He decides to sell each craft for $2.50 and wants t
lys-0071 [83]

Answer:

Step-by-step explanation:

Let c represent the minimum number of crafts that Odell must sell at the fair.

Odell spends $55 on supplies to make holiday crafts to sell at a local fair. This means that the total cost of supplying c crafts would be $55

If he decides to sell each craft for $2.50, then the total revenue from selling c crafts would be

2.5c

If he wants to earn more than $130 selling the crafts, the inequality that can be used to determine the minimum number of crafts that Odell must sell at the fair is

2.5c - 55 > 130

6 0
3 years ago
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