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sergij07 [2.7K]
2 years ago
13

Find the missing angles

Mathematics
2 answers:
Olenka [21]2 years ago
4 0

Answer: x= 51

Step-by-step explanation:

x= 90-39

y=

Setler [38]2 years ago
3 0

Answer:

x = 51

y = 39

Step-by-step explanation:

90 - 39 = 51

90 - 51 = 39

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two bike riders ride around in a circular path. The first rider completes one round in 15 minutes and the second rider completes
katrin2010 [14]

Answer:

Rider 1 does one round in 15 min, and will complete another in each consecutive multiple of 15 min

Rider 2 does one round in 18 min, and will complete another in each consecutive multiple of 18 min

Assuming that they start together, they will complete another round together in a time that is both multiples of 15min and 18 min.

Then we need to find the smallest common multiple between 15 and 18.

To smallest common multiple between two numbers, a and b, is equal to:

a*b/(greatest common factor between a and b).

Now, the greatest common factor between 15 and 18 can be found if we write those numbers as a product of prime numbers, such as:

15 = 3*5

18 = 2*3*3

The greatest common factor is 3.

Then the smallest common multiple will be:

(15*18)/3 = 90

This means that after 90 mins, they will meet again at the starting place.

3 0
3 years ago
F(x)=3/x+2-√x-3 f(19)=​
77julia77 [94]

Answer:

  • - 27/7

Step-by-step explanation:

Given

  • f(x)=3/(x+2) - √(x-3)

To find

  • f(19)

Solution

  • f(19) =​ 3/(19 + 2) - √(19 - 3) = 3/21 - √16 = 1/7 - 4 = - 27/7
3 0
2 years ago
Two pounds of peaches cost $4.20. How much will five pounds cost?
Dimas [21]
Set up multiplication of ratios so that they cancel out units that you do not need in your final answer...

5lb($4.20/2lb)=$10.50
8 0
3 years ago
Read 2 more answers
7 + (10 − 4)2 ÷ 4 × 1\8
natta225 [31]
I’m pretty sure the answer is 12

6 0
2 years ago
(-3x+4)+(8x-5)
VikaD [51]

Answer:

answer is 5x-1

its A

hopes this helps u

4 0
3 years ago
Read 2 more answers
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