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3 years ago

14

What is 5x times (3x^2 -5)

1 answer:

Mars2501 [29]3 years ago

8 0

Answer:

$\large\boxed{5x\times(3x^2-5)=15x^3-25x}$

Step-by-step explanation:

$5x\times(3x^2-5)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\=(5x)(3x^2)+(5x)(-5)\\\\=15x^3-25x$

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Add fraction 6 4/5 + 3 7/10 how do i add this fraction

Dafna1 [17]

The answer is 10 1/2.

First you need to convert 4/5 and 7/10 so the denominator is the same. 4/5=8/10, 7/10 stays the same.

Now we add= 6 8/10 +3 7/10 =9 15/10.
9 15/10=10 5/10=10 1/2.

Hope this helps and hope you have a great day and please make brainiest

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2 years ago

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Keith weighs 20 kg more than Beth,while henry weighs 30kg less than twice as much as Beth. If Keith and Henry weigh the same, ho

dybincka [34]

Answer:

50kg

Step-by-step explanation:

K = Keith B = Beth H = Henry

K = 20 + B

H = 2B - 30

K = H

20 + B = 2B - 30

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3 0

3 years ago

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-5x-y= 8<br> -4x+y=2 solve the system

yan [13]

$\huge\fcolorbox{blue}{aqua}{Answer:}$

═════════════════════

1. $- 5x - y = 8$

<h3>Solve for x</h3>

$-5x-y=8$

$-5x=8+y$

$-5x=y+8$

$\frac{-5x}{-5}=\frac{y+8}{-5}$

$x=\frac{y+8}{-5}$

$x=\frac{-y-8}{5}$

<h3>Solve for y</h3>

$-5x-y=8$

$-y=8+5x$

$-y=5x+8$

$\frac{-y}{-1}=\frac{5x+8}{-1}$

$y=\frac{5x+8}{-1}$

$y=-5x-8$

────────────────────

2. $-4x-y=2$

<h3>Solve for x</h3>

$-4x-y=2$

$-4x=2+y$

$-4x=y+2$

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

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

$x=-\frac{y}{4}-\frac{1}{2}$

<h3>Solve for y</h3>

$-4x-y=2$

$-y=2+4x$

$-y=4x+2$

$\frac{-y}{-1}=\frac{4x+2}{-1}$

$y=\frac{4x+2}{-1}$

$y=-4x-2$

════════════════════

Explanation:

#Carry on learning

7 0

2 years ago

Did you ever free club is selling wrapping paper for a fundraiser they order 16 cases if each student in the club takes two thir

omeli [17]

16=2/3 times number of students
times both sides by 3
48=2 times number of students
divide both sides by 2
24=number of students

there aer 24 students i the club

3 0

2 years ago

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Is the answer I chose correct?

nlexa [21]

Yes it is good luck too you

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2 years ago

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