The unknown number is n. So n is the unknown variable in the equation.
In order to write an equation in which n is included we must know some dependence of n with other values.
We know that <span>the difference of three times a number and 44 is −19. So, we can write:
3*n-44=-19
3*n=-19+44
3*n=25
n=25/3
</span>
Answer:
QBO=12 degrees
Step-by-step explanation:
angle QAO=angle OAS so:
2x+6=4x-12
reducing:
2x=18
x=9
substituting x into QBO=3x-15 then:
angle QBO=3(9)-15=12 degrees
Answer:
4.92 hours
Step-by-step explanation:
Let x = the number of hours left to work. I am converting the fraction to a decimal to make it easier to work with.
x + 3 + 5 + 2.08 = 15
Move constants to the right
x = 15 - 3 - 5 - 2.08
Do the math
x= 4.92
Answer:
210 ft^2
Step-by-step explanation:
The area of a triangle is
A = 1/2 bh where b is the base and h is the height
Since this is a right triangle the base is 20 ft and the heigth is 21 ft
A = 1/2 ( 20) * 21
210 ft^2
