Answer:
x = -3
a) 6 ft
b) 7 ft
c) 9 ft
d) 11 ft
e) 5 ft
f) 14 ft
Step-by-step explanation:
set up the equation
-2x + 4 - x +x +12 + 3x + 20 + 2x + 11 + 7x + 35 = 52
combine like terms
10x + 82 = 52
single out the variable
10x = -30
x = -3
substitute x in all the following equations
a) -2(-3) = 6
b) 4 - -3 = 7
c) -3 + 12 = 9
d) 3(-3) + 20 = 11
e) 2(-3) + 11 = 5
f) 7(-3) + 35 = 14
have a lovely day <3
Answer:
To find the area of a triangle, multiply the base by the height, and then divide by 2. The division by 2 comes from the fact that a parallelogram can be divided into 2 triangles. For example, in the diagram to the left, the area of each triangle is equal to one-half the area of the parallelogram.
Step-by-step explanation:
Answer:
-3/2
Step-by-step explanation:
Using the slope formula, we can find the slope of the line shown
m = ( y2-y1)/(x2-x1)
= ( -1-3)/(-3-3)
= -4/-6
= 2/3
A line that is perpendicular is the negative reciprocal
-1/ (2/3) = -3/2
This is quite simple, take 24 and divide it by four to get 6 now all you do is multiply 6 by 7 to get 42 so there are 42 blue marbles.
