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3 years ago

Please help me with my math it is urgent!!!!

Mathematics

1 answer:

Lena [83]3 years ago

6 0

Answer:rfr

Step-by-step exujplanation:

rfrfrr

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Ayanna is 3 years older than Brittany. The sum of 3 times Brittany's age and 2 times Ayanna's age is 76. How old are Ayanna and

Alex_Xolod [135]

Ayanna is 17 and Brittany is 14.

To find this, let's write two equations using the given information.

a = b + 3
3b + 2a = 76

Now, just substitute the first equation into the second and solve.

3b + 2(b + 3) = 76
3b + 2b + 6 = 76
5b = 70
b = 14

If Brittany is 14, then Ayanna is 3 years older at 17.

7 0

3 years ago

Counting the number of times a third-grade student leaves his seat without permission during a 30-minute observation period is a

notka56 [123]

Answer:

Behavioral modality of measurement

Step-by-step explanation:

Observing a 3rd grade student for 30 minutes as to how many time he leaves his seat without permission is a clear example of using behavioral modality of measurement.

In this modality of measurement the behavior of the object or system is observed when it is put into action.

This example shows as to what will happen or what is supposed to take place when a 3rd grade student is is seated and observed for 30 minutes. It counts as to how many times he leaves his seat in reaction to his stimulus from the environment.

6 0

3 years ago

Thank you for the person that answers this :)

Ivenika [448]

Answer:

g(x) = - 3^x

Step-by-step explanation:

G is a reflection across the x axis of the function of f(x)

g(x) = −f(x)

g(x) = - 3^x

6 0

3 years ago

How do I Subtract fractions! Please explain step by step to get marked

Fynjy0 [20]

Answer:

1) Make sure the bottom numbers (the denominators) are the same.

2) Subtract the top numbers (the numerators). Put the answer over the same denominator.

3) Simplify the fraction (if needed).

Step-by-step explanation:

Hope this helps!

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3 years ago

The scatterplot represents the total fee for hours renting a bike. The line of best fit for the data is y = 6.855x + 10.215.

shepuryov [24]

The table shows the correct residual values for the data set regarding the scatterplot is D. A 3-column table with 5 rows. The first column is labeled x with entries 1, 2, 3, 4, 5.

<h3>What is a scatterplot?</h3>

It should be noted that a scatterplot simply means a type of data display which shows the relationship between the variables.

In this case, the table shows the correct residual values for the data set regarding the scatterplot is a 3-column table with 5 rows. The first column is labeled x with entries 1, 2, 3, 4, 5.

The second column is labeled given with entries 14.95, 25.50, 32, 38.95, 42.50. The third column is labeled residual value with entries negative 2.12, 1.575, negative 1.22, 1.315, negative 1.99.

Learn more about scatter plot on:

brainly.com/question/6592115

#SPJ1

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2 years ago