Answer:
Width=13cm
Length=18cm
Step-by-step explanation:
Width of the Initial Photograph=9cm
Length of the Initial Photograph=14cm
If width and length are increased by an equal amount, say x
New Width=9+x
New Length=14+x
Area of the new photo is 108 square centimeters greater than the area of the original photo.
Area of Original Photo=14*9=126cm²
Aeea of the New Photo=126+108=234cm²
Therefore:
(9+x)(14+x)=234
126+9x+14x+x²-234=0
x²+23x-108=0
x²+27x-4x-108=0
x(x+27)-4(x+27)=0
(x+27)(x-4)=0
x+27=0 or x-4=0
x=-27 or x=4
Since x≠-27
x=4cm
The dimensions of the new photo are:
Width=9+x=9+4=13cm
Length=14+x=14+4=18cm
There are 8 students in a art club. There are 3 times as many students in chorus. How many students are in chorus?
We don't know how many students are in chorus. Use n as the students.
n = 8×3
n = 24
The value of n is 24.
So, there are 24 students in chorus.
Total earnings = 650 + 530 + 52 - 28 - 75 = $1129
Goal = $1100
Exceeded by = $1129 - $1110 = $9.
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Answer: The school exceed their goal by $9.
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Answer:
y + 1 = -14(x - 2)^2y = -14(x - 2)^2 - 1
Step-by-step explanation:
165
5x5= 25
12x12=144
25+144= 165
