Answer:
3x+4(3x−5)=25
Use the distributive property to multiply 4 by 3x−5.
3x+12x−20=25
Combine 3x and 12x to get 15x.
15x−20=25
Add 20 to both sides.
15x=25+20
Add 25 and 20 to get 45.
15x=45
Divide both sides by 15.
x= 45/15
Divide 45 by 15 to get 3.
x=3
<span><span>1.
</span>There are many ways of solving this kind of
division problem. But I will showing the easiest one.
15.75 divided by 0.25
=> In every 1 whole number, there are 4 of 0.25
Now we have 15 as whole number so simply multiply 15 x 4
=> 15 * 4 = 60, there are 60 pieces of .025s in 15.
=> 0.75 has 3 0.25s
Now, let’s add 60 + 3 = 63, the answer is 63.
There are 63 pieces of 0.25 in 15.75.
Let’s check
=> 15.75 / 0.25
=> 63</span>
Answer:
<h2>135 ft²</h2><h2 />
Step-by-step explanation:
see attached image
<u>shaded area = total area (1) - unshaded triangular area (2)</u>
1. area of a trapezoid = (a + b) * h/2
where a = 8, b = 18, h = 15
Area of trapezoid = (8 + 18) * 15/2 = 195 ft²
2. Area of unshaded triangle = 1/2 (8) 15 = 60 ft²
shaded area = 195 - 60 = 135 ft²
Answer:
X=21
Step-by-step explanation:
4x(-2) + 4 x 7 4x5 + 2x(-1) =[-8 20]
[28 -2 ]
