Answer:
x = -3
Step-by-step explanation:
seperate this equation into different sides where like terms are on each side.
12x + 20 = 5x - 10 - 3x
12x - 5x + 3x = -10 - 20
simplify
10x = - 30

Answer:
Step-by-step explanation:
Think about how many boxes he had bought, which totals to over £80 which means he had received an 8 percent discount hope this is right
Answer:
x = 6
y = 3
Step-by-step explanation:
Give triangle is a right triangle.
By applying sine ratio in the given triangle,
sin(60)° = 

x = 6
Now we take the cosine ratio in the given triangle,
cos(60)° = 

y = 
y = 
Therefore, x = 6 and y = 3 will be the answer.
Answer:
10 - 10 as in 10 minus 10? 10 minus 10 is 0. Both of you are wrong.
Answer:
5 = side a
3 = side c
angle B = 62 degrees
JK is side b
Use the Law of Cosines to find the length of side b.
b^2 = a^2 + c^2 − 2ac cos(B)
b^2 = (5^2 + 3^2) − ( 2 x 5 x 3) cos(62°)
b^2 = (25 + 9) − 30 x 0.469
b^2 = 34 - 30 x 0.469
b^2 = 34 - 14.084
b^2 = 19.916
b = √19.916
b = 4.463
Rounded to the nearest tenth is 4.5 mm.
Hope this helps!
Step-by-step explanation: