We use ratios here.
For every 10 samples, the total weight is 0.01 lb.
We write
10 / 0.01.
We want to find the weight of 10,000 samples.
We write
10,000/?
These two ratios must equal each other.
(10 / 0.01) = (10,000 / ?)
If you know how to cross-multiply, then we can do that here.
0.01 * 10000 = 10 * ?
100 = 10 * ?
The unknown value is 10, which is your answer.
Answer:
y = -1/2x + 1
Step-by-step explanation:
question tells you the y-intercept which equals 1
you can find the slope by subtracting 2 and 0, over the difference of -1 and 3
m = -2/4 or -1/2
Once you have slope and y-intercept, you have enough info to write the equation
Answer:
76˚
Step-by-step explanation:
All angles of a triangle total up to 180˚ so we can make this equation:
x - 14 + 1/2x + 7 + 2x - 128 = 180
3.5x - 135 = 180
3.5x = 315
x = 90
Angle A is x - 14
90 - 14
76
Answer:
4.75 inches
Step-by-step explanation:
To find your answer you divide 47.5 by 10, as that is the scale rate
here's the way that i learned it:
convert them to mixed fractions and then go from there.
3.6 = 36/10 0.5 = 1/2
right now our problem looks like this: 36/10 ÷ 1/2 =
okay, so i learned the method keep it, switch it, flip it.
keep the first fraction in the equation, 36/10
switch the division sign to multiplication ÷ ⇒ ×
switch the numbers on the second fraction 1/2 ⇒ 2/1
okay, so our equation looks like this now:
36/10 x 2/1
okay, so now multiply across. (multiply the top numbers together and the bottom numbers together)
72/10
latly, we need to convert back to a decimal. divide the top number by the bottom one.
to do this, divide the top number by the bottom number
72/10
7.2
<em>i hope this was helpful. this is how i learned dividing with decimals, so it might be kinda complicated. if you still need help, let me know :)</em>
