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2 years ago

I need some help pleaseeeee

Mathematics

1 answer:

Kruka [31]2 years ago

5 0

Answer:

Step-by-step explanation:

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

I hope this helps!

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If you flip two coins 96 times what is the best prediction for the number of times they would both land on tails

emmainna [20.7K]

Flipping two coins gives four possibilities: HH, HT, TH, TT

So P(TT)=1/4

So we'd expect a quarter of the trials to be two tails.

$\frac 1 4 \times 96 = 24$ trials expected to be two tails.

5 0

3 years ago

Please help me calculate the value of y with steps

Nutka1998 [239]

The value of y in the triangle is 7.5

<h3>How to calculate the value of y?</h3>

The given parameter is the triangle

On the triangle, we have the following equivalent ratio

y : 8 = y + 15 : 20

Express as fraction

y/8 = y + 15/20

Cross multiply

20y = 8y + 90

Collect the like terms

20y - 8y = 90

Evaluate

12y = 90

Divide by 12

y = 7.5

Hence, the value of y in the triangle is 7.5

Read more about triangles at

brainly.com/question/17335144

#SPJ1

5 0

1 year ago

Calliope bought 15 sets of mini markers to make goody bags for her party. Neon markers were $3 and metallic markers were $4. She

I am Lyosha [343]

Answer:

7 metallic 8 neon

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

A graph has a constant of proportionality of 2.54. Let y represent centimeters and x represent inches. What is the unit rate of

Helga [31]

Answer: 2.54 is the rate of the given equation.

Step-by-step explanation:

Let x is the independent variable and y is the dependent variable.

Since, By the definition of proportionality,

y = k x

Where k is the constant of proportionality.

And, Here k = 2.54

Thus, the equation of line is,

y = 2.54 x

since, rate of the equation is the slope of the line.

And, the general equation of line

y = m x +c

Where, m is the slope of the line.

By comparing the equation of line y = 2.54 x with this.

The slope of the line = 2.54

Therefore, 2.54 is the rate of the given equation.

3 0

3 years ago

What is the value of fraction 1 over 3x3 + 5.2y when x = 3 and y = 2?

Slav-nsk [51]

Hello from MrBillDoesMath!

Answer:

1/ 91.4

Discussion:

Evaluate 1/ ( 3x^3 + 5.2y) when x = 3, y = 2.

1/ (3 (3)^3 + 5.2(2)) =

1/ ( 3 * 27 + 10.4) =

1/ ( 81 + 10.4) =

1/ (91.4) =

.0109 (approx)

Thank you,

MrB

6 0

3 years ago