All categories

3 years ago

Brian saved 30% of the money he earned.If brain earned $260,how much did he save?

Mathematics

2 answers:

mina [271]3 years ago

7 0

30/100 = 0.30

0.30 * 260 = 78

He saved $78.

CaHeK987 [17]3 years ago

5 0

Answer:

Brian saved $78.

Step-by-step explanation:

To find how much Brian saved, find 30% of $260. To find 30% of $260, multiply $260 by 0.3.

$260 × 0.3 = $78

Brian saved $78.

You might be interested in

Draw a line representing the "rise" and a line representing the "run" of the line. State

antoniya [11.8K]

Answer:

Answers are below

Step-by-step explanation:

The rise of the line is -5 units. The run is 4 units. The slope of the line is -5/4.

If these answers are correct, please make me Brainliest!

7 0

3 years ago

Jamison graphs the function ƒ(x) = x4 − x3 − 19x2 − x − 20 and sees two zeros: −4 and 5. Since this is a polynomial of degree 4

Art [367]

We are given polynomial function f(x)= $x^4-x^3-19x^2-x-20$

We are given two zeros -4 and 5.

Therefore, x=-4 and x=5 is given.

So, the two factors of the polynomial will be (x+4)(x-5).

Let us write some steps to factor the given polynomial.

Let us take above factor (x+4) first.

On factoring (x+4) we get factors

$x^4-x^3-19x^2-x-20=\left(x+4\right)\left(x^3-5x^2+x-5\right)$

$\mathrm{:Let \ us \ factor}\:x^3-5x^2+x-5 \ now.$

Grouping

$=\left(x^3-5x^2\right)+\left(x-5\right)$

Factoring out gcf from each group, we get

$=x^2\left(x-5\right)+\left(x-5\right)$

$=\left(x-5\right)\left(x^2+1\right)$

So, the final factored form of given polynomial will be

$x^4-x^3-19x^2-x-20=\left(x+4\right)\left(x-5\right)\left(x^2+1\right)$

For first to factors (x+4) and (x-5) we have given roots: -4 and 5.

Let us find the root of third factor we got.

$x^2+1=0$

Subtracting both sides by 1.

x^2 = - 1.

On taking square root on both sides, we get a square root(-1)

$x=\sqrt{-1}=$ + i and -i.

Those are imaginary solutions.

Therefore, correct option is B) No, there are two imaginary solutions.

5 0

4 years ago

Wendy is going to toss two number cubes with faces numbered 1 through 6 and flip a coin. How many possible outcomes are there fo

slava [35]

Two times 6 on a dice and one times 2 on the coin
So 6*6*2 = 72

The answer is c. 72

6 0

3 years ago

Read 2 more answers

Solv this for T 1/5t + 2- ( ) = 17- ( ) 1/5t = ( ) × 1/5t= ( ) t =

Olenka [21]

Answer:

t = 5?

Step-by-step explanation:

3 0

3 years ago

Hi I need answer please. I will mark brainliest who can answer thankyou...

DochEvi [55]

Answer:

a) (0,0), (-4, 1), (-1,2)
b) None

Step-by-step explanation:

There are two ways of solving similar problems. One- substitute x and y with respective coordinates and verify if the inequalities are correct. Two- graph the lines and see if the points are in the intersection zones.
We'll go with the first method.
Remember both inequalities should be correct for the same point to accept it as a solution.

Given points

(0,0), (-4,1), (-1,2)

<h3>a) The system of inequalities</h3>

y > x - 1
y < -1/2x + 2

Point (0,0)

0 > 0 - 1 = -1 correct
0 < -1/2(0) + 2 = 2 - correct
Yes

Point (-4,1)

1 > -4 - 1 = -5 - correct
1 < -1/2(-4) + 2 = 4 - correct
Yes

Point (-1,2)

2 > -1 - 1= -2 - correct
2 < -1/2(-1) + 2 = 2.5 - correct
Yes

<h3>b) The system of inequalities</h3>

x - 2y ≥ 4
2x - y ≥ -1

Point (0, 0)

0 - 2(0) = 0 ≥ 4 - incorrect
2(0) - 0 = 0 ≥ -1 - correct
No

Point (-4, 1)

-4 - 2(1) = - 6 ≥ 4 - incorrect
2(-4) - 1 = - 9 ≥ -1 - correct
No

Point (-1,2)

-1 - 2(2) = -5 ≥ 4 - incorrect
2(-1) - 2 = - 4 ≥ -1 - correct
No

7 0

3 years ago

Read 2 more answers