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2 years ago

how to determine which quantity is independent and which quantity is dependent when considering a situation

1 answer:

7 0

An easy way to think of independent and dependent variables is, when you're conducting an experiment, the independent variable is what you change, and the dependent variable is what changes because of that. You can also think of the independent variable as the cause and the dependent variable as the effect.

I hope this helps!

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they were selling pizza for $1.50 and hotdogs for $1.25. they sold 20 more slices of pizza than hotdogs, and for the sales total

givi [52]

Answer:

Step-by-step explanation:

Cost of each item:

Pizza = $1.50, Hotdogs = $1.25

Number of each item:

Pizza = x, Hotdogs = x + 20

Total cost:

1.25x + 1.5(x + 20) = 173
1.25x + 1.5x + 30 = 173
2.75x = 143
x = 143/2.75
x = 52

Number of slices of pizza:

52 + 20 = 72

6 0

2 years ago

Use the diagram attached below. Find the straight distance between the zoo and movie theater.

Vesnalui [34]

Answer:

The distance would be around 9.66 blocks

Step-by-step explanation:

If you draw a straight line from zoo to movie theater, we have a triangle.

The given angle is 86 degrees, the two sides adjacent to it are 6 and 8 and we want to find the side opposite (let it be "p") to the given angle.

We will use cosine rule to find this. The rule is:

$p^2=a^2+b^2-2abcosP$

Where

a and b are the two adjacent sides to the given angle

a = 6

b = 8

p is what we are looking for

P is the angle given

So, substituting and finding the value:

$p^2=a^2+b^2-2abcosP\\p^2=6^2 + 8^2 - 2(6)(8)Cos(86)\\p^2=36+64-96Cos(86)\\p^2=100-96Cos(86)\\p^2=93.3033\\p=\sqrt{93.3033}\\p=9.66$

The distance would be around 9.66 blocks

7 0

3 years ago

It costs $0.50 to download an individual song and $4 to download an album. Jada has $15 to spend downloading music.

KengaRu [80]

Answer:

he can download 3 albums and 6 individual songs.

Step-by-step explanation:

15-4(3)

=15-12

=3-0.50(6)

=3-3

7 0

2 years ago

Read 2 more answers

The height of a boy is 1.46 meters. If there are approximately 3.28 feet in one meter, what is the height of the boy in inches?

grigory [225]

The boy is 4.79 ft tall.
Use the conversion formula of,
d(ft) = d(m) / 0.3048

8 0

2 years ago

Justin recently drove to visit his parents who live 300 miles away. On his way there his average speed was 11 miles per hour fas

Lynna [10]

Answer:

x=1

Step-by-step explanation:

5 0

2 years ago