Answer:
-2
Step-by-step explanation:
10/-5=-2
-2 x -5 = 10
Note: When using a negative and positive they turn to a negative, but when using two numbers of the same they turn positive.
Example: 10/5=2 and -10/-2=5!
Answer:
1.527 m/s
I assume that the swimmer swims at a constant speed. Then the speed is defined as the ratio between the space and time: v=st=110m72s=1.527 m/s.
Answer:
y=x+2; y=5
Step-by-step explanation:
Answer:
<h2>Perimeter: 16x + 16</h2><h2>Area: 40x + 15</h2>
Step-by-step explanation:
![l-\text{length}\\\\w-\text{width}\\\\\text{The formula of a perimeter of a rectangle:}\ P=2(l+w)\\\text{The formula of an area of a rectangle:}\ A=lw\\\\\text{We have}\ l=8x+3\ \text{and}\ w=5.\\\text{Substitute:}\\\\P=2(8x+3+5)\\P=2(8x+8)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\P=(2)(8x)+(2)(8)\\\boxed{P=16x+16}\\\\A=(8x+3)(5)\qquad\text{use the distributive property}\\A=(8x)(5)+(3)(5)\\\boxed{A=40x+15}](https://tex.z-dn.net/?f=l-%5Ctext%7Blength%7D%5C%5C%5C%5Cw-%5Ctext%7Bwidth%7D%5C%5C%5C%5C%5Ctext%7BThe%20formula%20of%20a%20perimeter%20of%20a%20rectangle%3A%7D%5C%20P%3D2%28l%2Bw%29%5C%5C%5Ctext%7BThe%20formula%20of%20an%20area%20of%20a%20rectangle%3A%7D%5C%20A%3Dlw%5C%5C%5C%5C%5Ctext%7BWe%20have%7D%5C%20l%3D8x%2B3%5C%20%5Ctext%7Band%7D%5C%20w%3D5.%5C%5C%5Ctext%7BSubstitute%3A%7D%5C%5C%5C%5CP%3D2%288x%2B3%2B5%29%5C%5CP%3D2%288x%2B8%29%5Cqquad%5Ctext%7Buse%20the%20distributive%20property%3A%7D%5C%20a%28b%2Bc%29%3Dab%2Bac%5C%5CP%3D%282%29%288x%29%2B%282%29%288%29%5C%5C%5Cboxed%7BP%3D16x%2B16%7D%5C%5C%5C%5CA%3D%288x%2B3%29%285%29%5Cqquad%5Ctext%7Buse%20the%20distributive%20property%7D%5C%5CA%3D%288x%29%285%29%2B%283%29%285%29%5C%5C%5Cboxed%7BA%3D40x%2B15%7D)