Scientific notation is a system for expressing very large or very small numbers in a compact manner. It uses the idea that such numbers can be rewritten as a simple number multiplied by 10 raised to a certain exponent, or power.
Answer:
x = 13
Step-by-step explanation:
y=50
50 = 5x - 15
50 + 15 = 5x
65 = 5x
65/5 = 5x/5
13 = x
Answer:
15/40
Step-by-step explanation:
Answer:
y=-6x-57 is your answer.
Step-by-step explanation:
You will use this equation:
y-y1=m(x-x1). The y1 is -2 and the x1 is -9.
y-(-3)=-6(x-(-9)). You will the distribute the -6 into the x and the -9.
y+3=-6x-54. You will then subtract 3 to both sides.
y=-6x-57 is your answer.
2.5% * y = 2.21
.025 * y = 2.21
y = 2.21/.025
y = 88.4
2.5% of 88.4 is 2.21
