Answer:
42 - (-24) = 66
Step-by-step explanation:
I'm not sure if this is the form of answer, but if you're subtracting a negative from a negative, you're adding a positive, so this is another way to write the expression.
Answer:
Step-by-step explanation:
value of x is equally to -7 or -10
Answer:
x = 25°
Step-by-step explanation:
Complimentary angles add up to 90°, so we have...
3x - 10 + x = 90 solve for x
4x - 10 = 90
4x = 100
x = 25°
Let
y----------> the length of the rectangle
x---------> the width of the rectangle
P--------> perimeter of a rectangle
we know that
P=38 ft
[P]=2*[x+y]------> 38=2*[x+y]------> equation 1
y=5+x-------> equation 2
<span>substitute 2 in 1
</span>P=2*[x+(5+x)]---------> P=4x+10---------> the given equation
4x=38-10--------> 4x=28----> x=7 ft
y=5+7-----> y=5+7------> y=12 ft
the answer is
the width is 7 ft