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Crazy boy [7]
3 years ago
15

What is the value of y? Enter your answer in the box.

Mathematics
1 answer:
iris [78.8K]3 years ago
3 0

Answer:

5

Explanation:

So for these, a triangle always equals 180 so you just have to set it up where you add all the sides together to equal 180. Also because it is an isosceles triangle, it means that the two bottom angles are equal so start by setting them equal and solving for x:

75 = 3x

So divide both sides by 3:

25 = x

Now you really didn't have to solve for x because you already know that it equals 75, so you could just said x doesn't matter and just treat it like a 75, but I explained it just in case.

So now that you have your base angles which added together equal 150 lets set it all equal to 180:

4y + 10 + 150 = 180

Now I will simplify this:

4y + 160 = 180

subtract 160 from both sides:

4y = 20

now divide both sides by 4:

y = 5

hope this helps!

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Please answer please I need it today, if you show ur answer and solution then i'll make you the brainliest
grigory [225]

Answer:

1) 0.3

2) 12

3a) 5/6

3b) 4/5

Step-by-step explanation:

1) There are;

12 white balls, 6 green balls and 2 red balls.

Total number of balls = 12 + 6 + 2 = 20

Probability of selecting a green ball at random = 6/20 = 3/10 = 0.3

2) we are told that number of marbles is 28 marbles.

Now, theoretical probability of drawing a blue marble = 3/7

This fraction is; number of favorable outcomes/number of possible outcomes.

Thus;

Number of blue marbles = 3/7 × 28 = 12 blue marbles

3a) theoretical probability is what we expect to happen.

There are 5 numbers less than 6 in the table.

Thus;

Theoretical probability of getting a number less than 6 in the next throw = 5/6

3b) Experimental probability is what actually happens.

Number of times a number less than 6 appears = 6 + 4 + 7 + 11 + 12 = 40 times

There was a total of 50 trials. Thus;

Experimental probability of getting a number less than 6 in the next throw = 40/50 = 4/5

4 0
3 years ago
Of the girls on the Alden Middle School soccer team, % also play on a travel team. How many of the girls on the middle school te
Wewaii [24]

Answer:

The question is incomplete, so I looked for similar ones and found:

<em>Of the 25 girls on the Alden Middle School soccer team, 40% also play on a travel team. How many of the girls on the  middle school team also play on a travel team? </em>

we can solve this the following way:

25 girls on the soccer team x 40% that play on a travel team = 10 girls form the soccer team that play on a travel team

we can also multiply (25 girls x 40) / 100 = 10 girls

we can check our work by:

10 girls / 40% = 25 girls in total

8 0
3 years ago
(08.03)Jasper is using the following data samples to make a claim about the house values in his neighborhood:
tiny-mole [99]
I think its D <em>(or #4 - He Should use the mean because there are no outliers that affect the mean)</em> because the Median would be $175,000 but the Mean would be $638,400. It's honestly almost up to you.
7 0
3 years ago
1<br> If ZA and ZB are complementary angles and mA = 60°, then m B =?
yarga [219]

Answer:

30 degrees

Step-by-step explanation:

Because the angles are complementary, they MUST equal to 90 degrees

Because measure of Angle A = 60, then the measure of Angle B = 30, because 60 + 30 = 90 degrees

3 0
3 years ago
Find the value of x.
scZoUnD [109]

Step-by-step explanation:

90 + 90  + 52  + x = 360 \\ x = 360 - 90 - 90 - 52 \\ x = 128

3 0
3 years ago
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