Answer:
n = -6
x = -7
n = 27
Step-by-step explanation:
Question 1
-3n - n + 12 = 36
First we get all the variables to one side using subtraction property of equality.
-3n - n + 12 (-12) = 36 (-12)
-4n = 24
divide by the coefficient of n to isolate the variable
-4n/-4 = 24/-4
n = -6
Question 2
-2x - 3x - 15 = 20
-5x - 15 = 20
-5x = 35
x = -7
Question 3
3 + n/9 = 6
Isolate the n variable
n/9 = 6 - 3
multiply by 9
n = 27
Answer: 16 and 18
Step-by-step explanation:
Let the lesser of two consecutive even integers is x.
Hence, the bigger of two consecutive even integers is (x+2).
Multiply both parts of the equation by 2:
Given: e^x=25step1: ㏑ e^x= ㏑ 25
step2: x㏑ e= ㏑ 5^2
step3: x=
step4: x=2㏑ 5<u />
Do rise/run and u should have your answer
Working:
Area of the rectangle= 12 x 4 =
48cm^2Area of the semicircles=
x 2² =
12.56cm^2
48+12.56= 60.56
Answer: 60.56cm²