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vova2212 [387]
3 years ago
9

Hey Friends!! Wanna talk and chill?

Mathematics
2 answers:
Ivan3 years ago
8 0

Answer:

say less

Step-by-step explanation:

professor190 [17]3 years ago
3 0

Answer:

no, do your homework

Step-by-step explanation:

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A delivery truck is transporting boxes of two sizes: large and small. The large boxes weigh 50 pounds each, and the small boxes
Arturiano [62]

Answer: 50 large box

Step-by-step explanation:

First, "boxes of two sizes" means we can assign variables:

Let x = number of large boxes

y = number of small boxes

"There are 115 boxes in all" means x + y = 115 [eq1]

Now, the pounds for each kind of box is:

(pounds per box)*(number of boxes)

So,

pounds for large boxes + pounds for small boxes = 4125 pounds

"the truck is carrying a total of 4125 pounds in boxes"

(50)*(x) + (25)*(y) = 4125 [eq2]

It is important to find two equations so we can solve for two variables.

Solve for one of the variables in eq1 then replace (substitute) the expression for that variable in eq2. Let's solve for x:

x = 115 - y [from eq1]

50(115-y) + 25y = 4125 [from eq2]

5750 - 50y + 25y = 4125 [distribute]

5750 - 25y = 4125

-25y = -1625

y = 65 [divide both sides by (-25)]

There are 65 small boxes.

Put that value into either equation (now, which is easier?) to solve for x:

x = 115 - y

x = 115 - 65

x = 50

There are 50 large boxes.

Check (very important):

Is 50+65 = 115 ? [eq1]

115 = 115 ?yes

Is 50(50) + 25(65) = 4125 ?

2500 + 1625 = 4125 ?

4125 = 4125 ? yes

4 0
2 years ago
PLEASE HELP MEEE
Romashka-Z-Leto [24]

Answer:

2x^3 + 9x^2 + 16x + 21.

Step-by-step explanation:

We first multiply the expression in the second parentheses by x , then by +3:

(x + 3)(2x^2 + 3x + 7)

= x(2x^2 + 3x + 7) + 3(2x^2 + 3x + 7)

= 2x^3 + 3x^2 + 7x + 6x^2 + 9x + 21   Now we add like terms:

= 2x^3 + 9x^2 + 16x + 21.

7 0
3 years ago
Solve the system of equations.
hjlf
Ok so the question has already been answered by someone but i wanna give you some advice... it’s called ✨photomath✨ and you can take a picture of the problem or type it in... it would have been able to solve this equation right away, so you wouldn’t have had to wait for someone to answer. have a great day :)
3 0
2 years ago
You begin solving the equation 4−5x=594-5x=59 by subtracting 44 from both sides. Which is the best choice for Step 22?
borishaifa [10]
4 - 5x = 59

Subtract 4 from both sides:

-5x = 55

Since x is being multiplied by -5, the next step is to divide both sides by -5.
5 0
3 years ago
Which of the following expressions are equivalent to 3(2x – 8)? Select all that apply.
Zina [86]

Answer:

Step-by-step explanation:

3(2x – 8)

3(2x) + 3(-8)

6x + -24

6x - 24

Hope this helps!

8 0
2 years ago
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