Answer:
2m-4
Step-by-step explanation:
because she has double his amount (2*m) but $4 less therefore 2m-4
Answer:
x=11, y=13
Step-by-step explanation:
3x-2y=7
3x-2(x+2)=7 . - x + = - -2*+2=-4
3x-2x-4=7
1x-4=7
x=7+4
x=11
y=x+2
y=11+2
y=13
Answer:
3.5 m
Step-by-step explanation:
Use Pythagorean theorem to find the distance (d) the distance goes up the wall = adjacent to the angle 75° that is formed with the wall.
Length of ladder = the hypothenuse = 13.5 m
Thus, we would use:
Cos75 = adjacent/hypothenuse
Cos 75 = d/13.5
Multiply both sides by 13.5
13.5*cos(75) = d
13.5*0.2588 = d
3.4938 = d
d ≈ 3.5 m (nearest tenth)
He is incorrect because each number is in a different place and those different places are worth more or less than the other places
A
area = 97*79=7663 ft^2
perimeter = 2(97)+2(79) = 194+158 = 352 ft
b perimeter
c area
