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Tom [10]
3 years ago
15

What is the measure of

Mathematics
1 answer:
Ne4ueva [31]3 years ago
8 0

Answer:

135

Step-by-step explanation:

because the amount of internal angles of a triangle is 180.

now, if you solve:

180-69-66=45

you'll find BAC.

if you want to find DAB you have to do:

180(DAC)-45(BAC)=135

Sorry for my English but I'm italian

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A bin contains 1 green, 1 blue and 4 black soccer balls. What is the probability of getting NOT blue?
liubo4ka [24]

Answer: 5/6

Step-by-step explanation:

First find total number of soccer balls.

1 + 1 + 4 = 6

4 + 1 = 5 non-blue soccer balls

5/6 = around 0.83

6 0
3 years ago
3x=-5y<br> 6x-7y=17 <br> Solve the equation
love history [14]
3x = -5y -------------- (1)
6x - 7y = 17 --------- (2)

From (1):
3x = -5y
x = -5/3 y ---------- sub into (2)

6 (-5/3 y) - 7y = 17
-10y - 7y = 17
-17y = 17
y = -1 ------------ Sub into (1)
3x = -5 (-1)
3x = 5
x = 5/3

Ans: x = 5/3, y = -1

7 0
3 years ago
I really need help with this question
Sergeu [11.5K]

Answer:

39

Step-by-step explanation:

I assume the father's age is a 2-digit number. He is not 9 years old or younger, and he is not 100 years old or older.

The sum of the digits of a two-digit number goes up by 1 from one number to the next unless the number ends in 9.

For example, from 17 to 18, the sum of the digits goes from 8 to 9.

If the number ends in 9, for example, 29, the digits add to 11. Then the next number is 30, and now the sum of the digits is 3, which is less than 11.

The father's age now is a number whose sum of digits is not only greater than the sum of the digits next year, but it is 3 times greater.

Let's look at 2-digit number and the next number and the sum of their digits.

19, 20; sums: 10, 2; 10/2 = 5, not 3

29, 30; sums: 11, 3; 11/3 ≠ 3

39, 40; sums: 12, 4; 12/4 = 3

Answer: The father is 39 years old.

5 0
2 years ago
Read 2 more answers
What property would use to save m+6=-4
vlabodo [156]
Subtraction, you’d -6 to the other side and m=-10
5 0
3 years ago
Find the point, M, that divides segment AB into a ratio of 5:5 if A is at (0, 15) and B is at (20, 0).
Airida [17]

C

a ratio of 5 : 5 simplifies to 1 : 1, which basically means we require the midpoint of the line segment

using the midpoint formula

M = [\frac{1}{2} (0 + 20 ), \frac{1}{2} (15 + 0)] = (10, 7.5 )


5 0
3 years ago
Read 2 more answers
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