Answer:
The numbers for which the given property hold true are <em>12 </em>and <em>-7</em>
Step-by-step explanation:
Let the number be 
.
As per the given statement:
Square of the number (
) is 84 more than five times of the number (
).
Writing in the equation form:
To find:
All the numbers for which above equation holds true.
Solution:
Let us solve the above equation by rearranging the terms and then let us find the roots of the equation.
It is a quadratic equation(i.e. maximum power of is 2) so it will have 2 solutions i.e. 2 values of for which the above equation will hold true.
Let us factorize the equation.
So, the numbers for which the given property hold true are <em>12 </em>and <em>-7</em>.
Answer:
7 hours.
Step-by-step explanation:
An experienced bricklayer can work twice as fast as an apprentice bricklayer. The apprentice needs 14, so 14/2=7
Answer:
Write in y=mx+b, or slope intercept form.
y represents the total cost of the function hall.
x represents the number of guests.
y=250+15x
Answer:
b. g(x) = 12x+10
c. x = 9/2
Step-by-step explanation:
b. g(2x+1)=6x+4
g(2x+1) = 6(2x+1)+4
g(2x+1) = 12x+6+4
g(2x+1) = 12x+10
g(x) = 12x+10
c. g(x) = 64
12x+10 = 64
12x = 54
x = 54/12
x = 9/2
