Answer:
Company A
Step-by-step explanation:
Company A
20 + (8×12)
20 + 96
= $116
Company B
10 + (10×12)
10 + 120
= $130
The total price offered by company A is lower and better.
The answer is <span>he lengths of the bases of the trapezoids are
trapezoid A
b=19cm, and B=35cm, b the short base and B the long base
trapezoid B
</span><span>b=19cm, and B=35cm, b the short base and B the long base
</span>
the height is h=15cm
the surface of A is A= hx(b+B) /2
so the surface is A= 15(19+35)/2=405cm²
we know that suface A =surfaceB, so Surface B= 405cm²
finally the total surface painted is 2 x 405cm²= 810cm²
the perimeter of the trapezoid A is PA=17+19+35+17=88cm
<span>the perimeter of the trapezoid B is PB=17+19+35+17=88cm
</span><span> one piece of sandpaper will not be enough to sand the edges of one trapezoid</span>
Answer:
Equation: 3x + 7 = 16
Unknown Number: 3
Step-by-step explanation:
You must first develop an equation representing this problem:
3x + 7 = 16
Then, you can solve for the unknown number.
3x + 7 = 16
3x = 9
x = 3