3 years ago

Which of the following is an example of a discrete variable ?

Mathematics

1 answer:

maria [59]3 years ago

3 0

C.The number of eggs in a cartoon I'm pretty sure

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Mr. Washington purchased three cell phones. Each cell phone cost one hundred fifty dollars. What is the total she paid for the c

Kamila [148]

Answer:

The answer is $450

Step-by-step explanation:

You need to do 150+150+150=450

150x3=450

7 0

3 years ago

Uhh help lol<br> 5.3x + y = 28.5 <br> 4.2x + 3.1y = 27.2<br> find x and y

navik [9.2K]

Answer:

x = 5, y = 2

Step-by-step explanation:

First, isolate y in the top equation.

$y = -5.3x+28.5$

Next, substitute y in the bottom equation.

$4.2x + 3.1(-5.3x + 28.5) = 27.2$

$5.3x + y = 28.5$

Simplify.

$4.2x + -16.43x + 88.35 = 27.2$

Combine like terms.

$-12.23x + 88.35 = 27.2$

Isolate x on one side.

$-12.23x = -61.15$

Isolate x.

$x = 5$

Substitute x into $5.3x + y = 28.5$

$5.3(5) + y = 28.5$

Simplify.

$26.5 + y = 28.5$

Isolate y.

$y = 2$

$x = 5 \\y = 2$

6 0

3 years ago

Thomas's cat, Rainwright, eats 0.8 cans of food every day. How much will Thomas spend on food in one week if each can costs $1.7

marshall27 [118]

1 week = 7 days
$0.8 \times 7 \times 1.75 \\ = 9.8$

Answer : Thomas spends $9.80 on food in one week.

Hope this helps. - M

3 0

3 years ago

Evaluate the following, if a=7, b=3, c=2

Zinaida [17]

Answer:

Step-by-step explanation:

a^2 - 5bc - 1

a = 7

b = 3

c = 2

7^2 - 5*3*2 - 1

49 - 30 - 1

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2 years ago

Consider the dot plot which shows the distribution of data collected on the amount of time Marty spends playing video games each

Marta_Voda [28]

Answer:

the correct answer is b.mean is greater than median

Step-by-step explanation:

i got the answer on usatestprep hope it helps:)

8 0

3 years ago