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Ymorist [56]
3 years ago
13

the interor angles of a triangle have measures 100 degrees 4y+25 degrees and 3y+20 degrees whats the value of y ​

Mathematics
1 answer:
pav-90 [236]3 years ago
7 0

Answer:

y = 5

Step-by-step explanation:

The 3 interior angles of a triangle sum to 180°

Sum the 3 given angles and equate to 180

100 + 4y + 25 + 3y + 20 = 180 ← simplify left side

7y + 145 = 180 ( subtract 145 from both sides )

7y = 35 ( divide both sides by 7 )

y = 5

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What is 2/3 times 7 wholes
Romashka-Z-Leto [24]
2/3 times 7 wholes is the same was 7 because 1 whole is 1.
What would you do it multiply the numerator and numerator so the would be 2x7. Then we would multiply the denominators. 3x1=1. Therefore the answer is 14/3.
6 0
4 years ago
What’s the unit rate for 1 eight packs of juice for $4
Phantasy [73]

Answer:

$0.50

Step-by-step explanation:

$4 divided by 8 = $0.50

8 0
3 years ago
a boat salesperson earns a 2.5% commission on the sale of each boat Find the commision earned on a boat that sells for 18,500
marin [14]
100% = 1.0
2.5% = 0.025

So now we know the decimal that corresponds to 2.5%, so all we have to do is multiply the price of the boat by this value in order to find the commission earned:

18 500 x 0.025 = $462.50
5 0
3 years ago
Read 2 more answers
What are coordinates of points a b c and d
inn [45]

Answer:

A = -1/6

B = -2/3

C = 1/2

D = 1 1/3

Please mark me brainliest if this helped!

3 0
3 years ago
The point-slope form of the equation of the line that passes through (-5, -1) and (10,-7) is
erik [133]

Answer:

2x + 5y = -15

Step-by-step explanation:

First, find the <em>Rate of change</em> [<em>Slope</em>]:

-y₁ + y₂\-x₁ + x₂ = m

1 - 7\5 + 10 = -⅖

Apply the Point-Slope Formula, <em>y - y₁ = m(x - x₁)</em>, since we are given points. It does not matter which one you choose. NOTE: All negative symbols give the OPPOSITE terms of what they really are, so be EXTREMELY careful inserting the coordinates into the formula with their CORRECT signs:

y + 7 = -⅖(x - 10)

y + 7 = -⅖x + 4

- 7 - 7

_________________

y = -⅖x - 3 >> Line in <em>Slope-Intercept Form</em>

Here it is in <em>Standard Form</em>:

y = -⅖x - 3

+⅖x +⅖x

____________

⅖x + y = -3 [We do not want fractions in our Standard Equations, so multiply by the denominator to get rid of it.]

5[⅖x + y = -3]

2x + 5y = -15 >> Line in <em>Standard Form</em>

__________________________________________________________

y + 1 = -⅖(x + 5)

y + 1 = -⅖x - 2

- 1 - 1

________________

y = -⅖x - 3 Line in <em>Slope-Intercept</em><em> </em><em>Form</em><em> </em>

y = -⅖x - 3

+⅖x +⅖x

___________

⅖x + y = -3 [We do not want fractions in our Standard Equations, so multiply by the denominator to get rid of it.]

5[⅖x + y = -3]

2x + 5y = -15 >> Line in <em>Standard Form</em>

** You see? I told you it did not matter which ordered pair you choose because you will always get the EXACT SAME RESULT.

I am joyous to assist you anytime.

3 0
3 years ago
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