All categories

3 years ago

What is the value of (8 + 3a) x a when a = 1/3

2 answers:

7 0

The given equation is:
(8+3a) * a

To get the value at a=1/3, we will substitute the value of a in the given equation with 1/3 and compute the result as follows:
(8+3(1/3)) * (1/3)
(8+1)*(1/3)
(9) * (1/3) = 3

Mrac [35]3 years ago

5 0

Substitute a for (1/3).

(8+3(1/3))*(2/3)
(8+1)*(2/3)
9*(2/3)
6

You might be interested in

How is a simontaneous equation solve or the procedures to solve it

Marina CMI [18]

Answer:

on my knowledge i can tell you the methods used to solve it which are;

Step-by-step explanation:

<h3>Elimination method.</h3><h3>Substitution method.</h3><h3>Graphical method.</h3>

3 0

2 years ago

4x – 3y=8<br> 2. 5x – 2y = -11

AlladinOne [14]

Answer:

$x = -7$

$y = - 12$

Step-by-step explanation:

The given system is:

4x-3y=8

5x-2y=-11

We make x the subject in the top equation to get:

$x = \frac{3}{4}y + 2$

Plug this expression for x in the bottom equation to get

$5( \frac{3}{4}y + 2) - 2y= - 11$

We expand to obtain

$\frac{15}{4} y + 10 - 2y = - 11$

Multiply through by 4

$15y + 40 - 8y = - 44$

Group similar terms

$15y - 8y = - 44 - 40$

$7y = - 84$

$y = - \frac{84}{7} =-12$

This means

$x = -12\times \frac{3}{4} + 2$

$x = - 7$

6 0

3 years ago

Write a word problem that would have the solution <br> p<21<br> Lineunder neath the

Dimas [21]

The line underneath the inequality line(arrow) means p is less than OR EQUAL to 21.
An example off the top of my head would be, Rachel just started a new job that pays 7 dollars per hour. She only worked 3 hours and decided she wanted to go to the mall to buy some clothes. How much money does Rachel have to spend?
And your answer is right there

5 0

3 years ago

Eight times the reciprocal of a number equals 4 times the reciprocal of 8. find the number

Burka [1]

8*(1/x) = 4*(1/8)
8/x = 4/8
64 = 4x
x = 16

4 0

3 years ago

A simple die is thrown 100 times and the number five appears 14 times. Find the experimental probability of throwing a five, giv

mario62 [17]

Answer:

The experimental probability of throwing a five is 0.087.

Step-by-step explanation:

Given:

Number of trials (n) = 100

Number of times 5 appears (x) = 14

Let the event of occurrence of 5 be success and the probability represented by 'p'. So, all the other numbers occurrence is failure and its probability is represented as 'q'.

Probability of success is given as:

$p=\frac{Number\ of\ favorable\ events}{Total\ number\ of\ outcomes}$