Answer:
w = 
Step-by-step explanation:
We can find the formula for the width by isolating w:
V = lwh
Divide each side by lh to isolate w:
= w
Answer:
The number is 4
Step-by-step explanation:
<u>Choose a variable for the number.</u>
let the number be "x"
<u>Make an equation</u> with the information from the problem. Break down each part of the problem and change it to the algebraic form (numbers and symbols).
"When 8 is added to" 8 +
"3 times a certain number" 3x
"the result is the same as" =
"adding 12 to" 12 +
"twice the number" 2x
Put the equation back together with each of the parts.
8 + 3x = 12 + 2x
<u>Now isolate "x"</u> to the left side to find the number.
8 + 3x - 2x = 12 + 2x - 2x Subtract 2x from both sides
8 + x = 12 "x" is only on the left side
8 - 8 + x = 12 - 8 Subtract 8 from both sides
x = 4 Solved for the number
Therefore the number is 4.
The volume of a cylinder is
Volume = π (radius)² (length or height)
Volume = π (4 cm)² (15 cm) = 240 π cm³ = 753.98 cm³
Answer:
5 magazines
Step-by-step explanation:
57.25 - 36= 21.25
21.25 / 4.25 = 5
To turn a number into scientific notation, move the decimal point so that there is only 1 number to the left of the decimal point.
Count the number of spaces you moved the decimal point.
If you move the decimal point to the right, the exponent is negative, if you move it to the left the exponent is positive.
0.000075
You need to move the decimal point 5 places to the right to get 7.5
Because it was moved to the right, the exponent is negative 5
The answer would be 7.5 x 10^-5 which is B.
