4x + 3y = 65
X + y = 18
When you use elimination, multiply the second equation by -3
4x + 3y = 65
-3X -3y = -54
X = 11
X+y = 18
11 + y = 18
Y = 7
<h3>
Answer:</h3>
a) TI = 7√3 in
b) IR = 7 in
<h3>
Explanation:</h3>
<u>Using cosine rule</u>:
<u>Using sine rule</u>:
Answer:
In a meeting there are 2 Arequipeños, 2 Trujillanos, 3 Piuranos and 4 Limans. In how many different ways can they be placed in a row so that those of the same city are together?
Step-by-step explanation:
Answer:Rearrange the equation by subtracting what is to the right of the greater equal sign from both sides of the inequality :
9*x-4-(95)≥0
Step by step solution :
STEP
1
:
Pulling out like terms
1.1 Pull out like factors :
9x - 99 = 9 • (x - 11)
Equation at the end of step
1
:
STEP
2
:
2.1 Divide both sides by 9
Solve Basic Inequality :
2.2 Add 11 to both sides
x ≥ 11
Inequality Plot :
2.3 Inequality plot for
9.000 X - 99.000 ≥ 0
One solution was found :
x ≥ 11
Step-by-step explanation:
