Answer:
x = 7 / 2, y = - 5 / 2
Step-by-step explanation:
3x + y = 8 ------> equation 1
3 ( 3x + y = 8 )
9x + 3y = 24 ------> equation 2
x - 3y = 11 ------> equation 3
Add equations 2 & 3,
9x + 3y = 24
x - 3y = 11
_________
10x + 0 = 35
10x = 35
x = 35 / 10
x = 3.5
Substitute x = 3.5 in equation 1,
3x + y = 8
3 ( 3.5 ) + y = 8
10.5 + y = 8
y = 8 - 10.5
y = - 2.5
x = 3.5
= 35 / 10
x = 7 / 2
y = - 2.5
= - 25 / 10
y = - 5 / 2
Answer:
It is the last choice.
Step-by-step explanation:
m < D = 180 - 28 = 152 degrees ( as same side angle add up to 180 degrees).
The perimeter = 2*17 + 2*25 = 84 cm ( as opposite sides of a parallelogram are congruent).
The area = base * height = 8 * 25
= 200 cm^2.
Answer: n = 0
Step-by-step explanation:
<u>Given expression</u>
(-3/4) (8n + 12) = 3 (n - 3)
<u>Expand parentheses and apply the distributive property</u>
-6n - 9 = 3n - 9
<u>Add 9 on both sides</u>
-6n - 9 + 9 = 3n - 9 + 9
-6n = 3n
<u>Subtract 3n on both sides</u>
-6n - 3n = 3n - 3n
-9n = 0
<u>Divide -9 on both sides</u>
-9n / -9 = 0 / -9
Hope this helps!! :)
Please let me know if you have any questions
Answer:
Last I checked, its a fish
Step-by-step explanation:
Answer:
71 degrees
Step-by-step explanation:
its an isosceles triangle so those angles are equal. Draw it out if that helps you.
