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kirill [66]
2 years ago
11

Find the values of x and y which satisfy the following equations

Mathematics
1 answer:
goblinko [34]2 years ago
8 0

Answer:

Step-by-step explanation:

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Help please!!!!<br><br> Evaluate the expression when x = 4 and y = 9<br><br> 4x+6y = ?
mote1985 [20]

Answer:

52

Step-by-step explanation:

4(4)+6(9)

16+36

52

4 0
3 years ago
Read 2 more answers
Two-step equations - integers
Andrews [41]
Question 1. -3 + v5 = 0
Work : -3 + 5v = 0
5v = 3 ( divide )
answer v = 3/5

Question 2. 1 - 7B = -20
work : -7b = -20 - 1
-7b = -21 ( divide )
answer b = 3

question 3 : -k - 5 = 0
work : -k = 5
answer : k = - 5

Question 4 : -1 + 8a = 129
work : 8a = 129 + 1
8a = 130 (divide )
answer a = 65/4

3 0
2 years ago
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Find the measures of interior angles. Find a and B.
olga nikolaevna [1]

Answer:

A = 68

B = 44

C = 68

Step-by-step explanation:

find x:

68 + x + x - 24 = 180

2x + 44 = 180

180 - 44 = 136

136 / 2 = 68

x = 68

_________________________

68 + 68 + 44 = 180

6 0
3 years ago
For* 15-16 find the number of sides if a polygon has the given measure for each interior angle,
salantis [7]

Answer:

15. d) 36

16. b) 20

17. d) 180

18. b) 50

19. c) 360

20. b) 60

Step-by-step explanation:

To find the number of sides a polygon has giving an interior angle, use the equation:

(number of sides - 2)*180/(number of sides) = measure of interior angle

<em>15. </em>(n = number of sides)

((n-2)*180)/n = 170

180n-360 = 170n

10n = 360

n = 36 (d)

<em>16.</em> (n = number of sides)

((n-2)*180)/n = 162

180n-360 = 162n

18n = 360

n = 20 (b)

<em>17.</em> The sum of the interior angles of a triangle is always 180 (d)

<em>18.</em> 180-60-70 = 50 (b)

<em>19.</em> The sum of the interior angles of a quadrilateral is always 360 (c)

<em>20.</em> 360-120-90-90 = 60 (b)

3 0
3 years ago
Simplify 10 + 1/2 + 6 + 5/6 ​
Olenka [21]

Answer:

17 1/3

Step-by-step explanation:

10 + 6 + 1/2 + 5/6

Turn 1/2 into 3/3 =3/6

10 + 6 + 3/6 +5/6

10 +6 = 16

3/6 +5/6 = 8/6

Put 8/6 into mixed number than add it to 16

8/6= 1 2/6

Finally, add 1 2/6 and 16 it would equal 17 2/6 aka 17 1/3

7 0
3 years ago
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