All categories

3 years ago

4a − 3 = 9 + a..........................

Mathematics

1 answer:

OverLord2011 [107]3 years ago

7 0

Answer:

$4a - 3 = 9 + a \\ 4a - a = 9 + 3 \\ 3a = 12 \\ a = \frac{ 12}{3} \\ a = 4$

I hope this help

You might be interested in

MARKING BRAINLIST IF HELPFUL Write the equation of a line that passes through (3, 3) and perpendicular to a line that contains (

krok68 [10]

Answer:

y=mx+b

find the slope of the second line then opposite it and you will get the slope of the first line, then you would put it anywhere on the second line and you will then get the y intercept and then you can fill in the equation

m=slope

b=y intercept

4 0

3 years ago

Jazmyn is baking and selling cupcakes for $15 per dozen. She would like to make more than $120 in cupcake sales. Which number li

baherus [9]

Answer:

> 8

Kindly find number line in attacked picture

Step-by-step explanation:

Price of cupcake per dozen = $15

Projected amount of sales > $120

In other to make such amount in sale, we need to obtain the number of dozens of cupcake :

Project amount of sales / price per dozen

> $120 / $15

> 8 dozens

4 0

3 years ago

What are the mean absolute deviation and population standard deviation of this data set? Round to the nearest tenth if necessary

tekilochka [14]

Answer:

For a data set of N elements:

{x₁, x₂, ..., xₙ}

The mean is:

$M = \frac{x_1 + x_2 + ... + x_n}{N}$

The mean absolute deviation is:

$MAD = \frac{|x_1 - M| + ... + |x_n - M|}{N}$

And the population standard deviation is:

$PSD = \frac{\sqrt{|x_1 - M|^2 + ... + |x_n - M|^2} }{\sqrt{N}}$

In this case, our set has 5 elements, and the set is:

{2, 4, 6, 9, 14}

The mean of this set is:

$M = \frac{2 + 4 + 6 + 9 + 14}{5} = 7$

The mean absolute deviation is:

$MAD = \frac{|2 - 7| + |4 - 7| + |6 - 7|+ |9 - 7| + |14 - 7| }{5} = 3.6$

And the population standard deviation is:

$PSD = \sqrt{\frac{|2 - 7|^2 + |4 - 7|^2 + |6 - 7|^2+ |9 - 7|^2 + |14 - 7|^2 }{5}} = 4.2$

6 0

3 years ago

How can the commutative property be used to write multiplication sentences

miss Akunina [59]

Using the commutative property means that you could do 5x4=20 and flip it around so it’s 4X5 the answer would still be 20 but in a different order

4 0

3 years ago

You are diving. It’s represented by h(t)= -2.5t + 35. What’s the height of the platform ___________ft? Show steps plz... NEED HE

VashaNatasha [74]

Answer:

welll the answer is 32.5 as used in the expression

Step-by-step explanation:

-2.5 plot it on a line graph then cooridinate the x and y axis to 35 and add the summ up to get 32.5

7 0

3 years ago

Read 2 more answers