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3 years ago

What's the greatest common factor of 5x^2+3x

Mathematics

2 answers:

r-ruslan [8.4K]3 years ago

7 0

Answer:

GCF = x

Step-by-step explanation:

The greatest common factor is "x"

$5\,x^2+3\,x=x\,(5x+3)$

it is the only common factor we can extract from both terms

schepotkina [342]3 years ago

6 0

The answer to that question is (5x+3).

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A store is having a sale on trail mix and jelly beans. For 5 pounds of trail mix and 3 pounds of jelly beans, the total cost is

GaryK [48]

Answer:

Trail Mix costs $2.50 per pound, and Jelly Beans cost $1.50 per pound.

Step-by-step explanation:

Using x for trail mix and y for jelly beans, we have a system of equations being

$\left \{ {{5x+3y=17} \atop {2x+12y=23}} \right.$

We can solve this system using substitution

5x+3y=17

Divide by 5 to have a coefficient of 1 before x

$x+\frac{3}{5} y=\frac{17}{5}$

Subtract $\frac{3}{5} y$ from each side to single out one variable to one side

$x=\frac{17}{5} -\frac{3}{5} y$

Now, we can plug in our value for x into the given equation

$2(\frac{17}{5} -\frac{3}{5} y)+12y=23$

Open the parentheses

$\frac{34}{5} -1\frac{1}{5} y+12y=23$

Merge Y values

$6.8+10.8y=23$

Separate numerical values from variables

$10.8y=16.2$

Divide by 10.8 in order to have a coefficient of 1

$y=1.5$

Now that we have one of the values, we know that a pound of jelly beans costs $1.50. We can now plug in 1.5 for y into one of our equations to find x.

$5x+3(1.5)=17$

Open parentheses

$5x+4.5=17$

Single out the variable

$5x=12.5$

Divide by 5 to have a coefficient of 1 before x

$x=2.5$

$y=1.5$

3 0

2 years ago

Need help I don’t know how to do it

liberstina [14]

First attempt to break the top portion up so the negative signs don’t confuse you.

(2 x -2) x (-2 x -4)/ 2 x 2

= (-4) x (8)/ 4

= -32/4

= -8

*Remember that multiplying two negative numbers give you a positive number

8 0

1 year ago

The tide level goes down all evening and Hamid’s instruments read 11 ft above his marker 1 hour before he arrived. Write the equ

SOVA2 [1]

Answer:

y= -8x + 19

Step-by-step explanation:

7 0

3 years ago

Find the value of 4 + 3 x 2

aliya0001 [1]

Using PEMDAS, You know that you have to multiply first so 3*2 is 6. Than you have to add 6+4 which gives you 10... So there for 10 is your answer....

7 0

2 years ago

Read 2 more answers

Isaiah is having his house painted. He paid $525 for the required materials, and he will pay $30 an hour for the painters to com

alukav5142 [94]

Answer:

Step-by-step explanation:

x is the amount of hours it will take. Since he pays $30 per hour, your answer would be 30x + 525

7 0

2 years ago