The length of the photograph is <u> 10 </u> inches.
Explanation:
Given, Width of a photograph is x.
Length of the photograph is 3 inches longer than its width. i.e. x + 3.
Area of the photograph = x(x+3)
If its area is 70 square inches, then
x(x+3)=70
x(x-7)+10(x-7)=0
(x+10)(x-7) =0
x+10=0; x-7 = 0
x = -10 and x = 7
Width of the photograph must not be in negative value. So, we can ignore –10.
Therefore, width of the photograph, x = 7 inches.
Now, the length of the photograph = 7 + 3 = 10 inches.
Thus, the required length of the photograph is 10 inches.
Si es 150 es precio sin IVA, tu precio con IVA sería de 181.5. La cantidad del IVA sería de 31.5
Y=2x + 1 is correct because just think about it
Answer: this is very hard and i was wondering if there is more info
Step-by-step explanation:
The value of x and y in the given system of equation is 3.70 and 2.50 respectively.
<h3>What is a system of equations?</h3>
A system of equations is a finite set of equations that can either be solved by using a substitution method or the elimination method.
From the given information:
---- (1)
---- (2)
From equation (1), let's make (x) the subject of the formula and substitute the value of x into equation (2) to solve for y.
i.e.
---- (3)
Now, replace the value of x in equation (2), we have:
solving for y;
y ≅ 2.50
Replacing the value of y in equation (3) to solve for (x), the value of x is:
x = 3.70
Learn more about the systems of equations here:
brainly.com/question/847634
#SPJ1