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julsineya [31]
3 years ago
8

Alexis bought x boxes of cereal for $3 each, including tax, and paid with a $20 bill. Which expression represents the total amou

nt of change she should receive?
Mathematics
2 answers:
Zepler [3.9K]3 years ago
7 0

Answer:

Expression y = 20 - 3x represents the total amount of change she should receive.

Step-by-step explanation:

Given : Alexis bought x boxes of cereal for $3 each that is including tax

This can be written mathematically as 3x.

Let the total amount of change she should receive be denoted by y

The total amount she paid is $20

The whole scenario can be written as a single expression as,

3x + y = 20

As 20 includes the cost of x boxes and the change she received (y)

y = 20 - 3x

Thus, expression y = 20 - 3x represents the total amount of change she should receive.


stepan [7]3 years ago
4 0

Answer:

Expression y = 20 - 3x represents the total amount of change she should receive.

Step-by-step explanation:

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find the equation of a line through the coordinate (3,6) and parallel to the line represented by y=5/3 x-1
maw [93]

Slope-intercept form:

y = mx + b

"m" is the slope, "b" is the y-intercept (the y value when x = 0 or (0,y))


For lines to be parallel, their slopes have to be the SAME.


The given line's slope is 5/3, so the parallel line's slope is also 5/3

y = 5/3x + b

To find "b", plug in the point (3,6) into the equation

y = 5/3x + b

6 = 5/3(3) + b

6 = 5 + b

1 = b


y = 5/3x + 1

5 0
3 years ago
Nvm i did it . it took me a long time but i did it
ra1l [238]
Wooooooo hoooooooo you goooooooo
                                          
                     
7 0
3 years ago
Need help with this one also
andriy [413]

Answer:

scale factor 3 is the answer.

Step-by-step explanation:

Length = 18 in

Breadth = 3 in

height = 10 in

Volume of cuboid = l × b × h

V = 18 × 3 × 10

V = 540 in³

540 in³ is the original volume. The volume needs to be tripled, so multiply the original volume with 3

V = 540 × 3 = 1620 in³

∴ 1620 in³ will be the new volume if it's tripled and the scale factor is 3.

4 0
3 years ago
I need some help pleaseeeee
Kruka [31]

Answer:

F

Step-by-step explanation:

The perimeter of the scale drawing is 18 inches. 72 divided by 18 is 4.

I hope this helps!

5 0
3 years ago
(05.01)
baherus [9]

Answer:

Always

Step-by-step explanation:

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3 years ago
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