A student is asked to calculate the volume, in milliliters, of 2 cups of oil. there are 225mL per cup. the student calculates the volume as follows:volume=2cups x 1cup/25mL= 8 cups
list three errors the student made

Answers

Answer 1

Answer: To calculate the volume, we use the data given above. For this problem we are asked to convert cups to mL.

volume = ( 2 cups) 225 mL / 1 cup = 450 mL

The student's error in converting is that she divide the conversion factor instead of multiplying it, wrote the conversion factor incorrectly and the units of his final answer is wrong.

Answer 2

Answer:

Answer:

This is the right answer

Step-by-step explanation:

The student got the incorrect Midpoint because, they subtracted the x and y values rather than adding them. The correct Midpoint would be (6.5, 4.5).

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A restaurant sells tea for $1.50 plus 0.50 per refill. The restaurant brews enough tea for 4 refills per customer . The linear function that represents the total cost of rtea refills is C(r) = 0.5r + 1.5 . Describe an appropriate domain of this function . Make sure to identify the set of numbers appropriate to the domain

Answers

4.50Answer:

Step-by-step explanation:

Consider a rectangle with width of x units and an area of 10 square units. The length l of the rectangle can be modeled by the function f (x) = StartFraction 10 Over x EndFraction.

Answers

Answer:

When we have a rectangle of width W and length L, the area of this rectangle can be calculated as:

A = W*L

In this case we have:

W = x

L = 10/x.

Then the area of the rectangle will be:

A = W*L = x*(10/x) = 10

So the value of x cancels in the equation, which means that we can not find the value of x.

Now, as L = 10/x we can find some restrictions:

if x = 0, we would have L = 10/0

So we can not have x = 0.

And as W = x, this represents a positive measure, we also have that x can not be a negative number.

So the relation:

W = x

L = 10/x

Gives us all the possible combinations of width and length such that the area of the rectangle is exactly 10 square units.

Answer:

third graph

Step-by-step explanation:

allenbrights electronics is having a 25% off sale. if a radio is SALE priced at $135, what is its regual price?

Answers

75% is $135

1% is $135/75

So, 100% is (135/75) x 100

So, the answer will be: $180

A light-year is a unit used to measure large distances in space. One light-year is approximately equal to 5.88 trillion miles. On a map of the Milky Way Galaxy, the scale is 1 inch:70 light-years. If two stars on the map are 19 inches apart, about how far apart are they in the galaxy?

Answers

Answer:

$7.8204* 10^(15)\ \text{miles}$

Step-by-step explanation:

In the map the scale is

$1\ \text{inch}=70\ \text{light-years}$

$19\ \text{inches}=19* 70=1330\ \text{light-years}$

In miles

$1\ \text{light-year}=5.88* 10^(12)\ \text{mi}$

$1330\ \text{light-years}=1330* 5.88* 10^(12)=7.8204* 10^(15)\ \text{miles}$

The galaxies are $7.8204* 10^(15)\ \text{miles}$ apart.

140% of what number is 14?

Answers

140% of 19.6 is 14 and you are very welcome

140% of what number is 14
140% × number = 14
(140% = $(140)/(100)$ = 1.4)
1.4 × n = 14
Divide by 1.4 to isolate n
$(1.4n)/(1.4)$ = $(14)/(1.4)$
1.4 and 1.4 cancels out
n = 10

140% of 10 is 14

Check:
$(140)/(100)$ × 10 = 14
1.4 × 10 = 14
14 = 14

Is 6.52 greater than 6.490?