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skad [1K]
3 years ago
5

the length of a rectangle is 7 inches more then its width. The area of the rectangle is equal to 4 inches less than 4 times the

perimeter. Find the length and width of the rectangle
Mathematics
1 answer:
Anettt [7]3 years ago
4 0
Goooooooooooooooooooooooogle it
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an apple orchard contains a hundred and twelve trees the number of trees in each row is 2 less than twice the number of rows fin
san4es73 [151]
Let x be the number of rows and y be the number of trees per row.

x* y = 112
and y =  2x - 2
from first equation  y = 112/x
so  112/x = 2x - 2
112 = 2x^2 - 2x
2x^2 - 2x - 112 = 0
x^2 - x - 56 = 0
(x - 8)(x + 7) = 0
x = 8 , - 7   (ignore the negative)
so the number of rows = 8 
and number of trees per row = 112/8 = 14

Answer number of rows = 8 and number trees i each row = 14.



6 0
4 years ago
Suppose the body length L in inches of a baby snake is given by L(m) = 1.5 + 2m, where m is the age of the snake in months until
Inessa [10]
L(m) = 1.5 + 2m.....when snake is 8 months..m = 8
L(8) = 1.5 + 2(8)
L(8) = 1.5 + 16
L(8) = 17.5 inches <==

L(m) = 1.5 + 2m....length is 25.5.....L(m) = 25.5
25.5 = 1.5 + 2m
25.5 - 1.5 = 2m
24 = 2m
24/2 = m
12 = m ....12 months <==
4 0
4 years ago
Read 2 more answers
Pamela is 9 years older than Jiri. The sum of their ages is 95. What is Jiri's age?
Darya [45]
Jiri age = 43
Pamela age = 52

52 - 43 = 9

52 + 43 = 95
4 0
4 years ago
Read 2 more answers
Through (1,-6) parallel to the line x + 2y = 6
MakcuM [25]

Hello!

To find the line parallel to the line x + 2y = 6 and passing through the point (1, -6), we will need to know that if two lines are parallel, then their slopes are equivalent to each other.

Since the given equation is written in standard form, we will need to change it to slope-intercept form to get the slope. Slope-intercept form is: y = mx + b.

x + 2y = 6 (subtract x from both sides)

2y = 6 - x (divide both sides by 2)

y = 6/2 - x/2

y = -1/2x + 3 | The slope of parallel lines are -1/2.

Since we are given the slope, we need to find the y-intercept of the line that goes through the point (1, -6) by substituting that point into a new equation with a slope of m equalling to -1/2.

y = -1/2x + b (substitute the given point)

-6 = -1/2(1) + b (simplify - multiply)

-6 = -1/2 + b (add 1/2 to both sides)

b = -11/2 | The y-intercept of the parallel line is -13/2.

Therefore, the line parallel to x + 2y = 6 and goes through the ordered pair (1, -6) is y = -1/2x + -11/2.

8 0
3 years ago
Find the length of the longer leg of a 30⁰-60⁰-90⁰ triangle given the length of the shorter leg: 15 in.
erica [24]

Answer:

longer leg is 30 inches

Step-by-step explanation:

3 0
3 years ago
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