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Lady_Fox [76]
2 years ago
15

(b+8)(b+2) please show work. I got b^2 + 10b + ?

Mathematics
1 answer:
kolezko [41]2 years ago
6 0

Step 1. Apply FOIL method. bb+b*2+8b+8*2

Step 2. bb+2b+8b+8*2

Step 3. Add similar elements. bb+10b+8*2

Step 4. Apply exponent rule. b^2+10b+8*2

Step 5. Multiply the numbers.  b^2+10b+16

b^2+10b+16 is your answer.

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Mikes movie Rentals Charge $3.00 for each rental plus $0.50 for each additional day. Reed's Rentals Charge $1.50 each rental plu
iris [78.8K]

Answer:

2

Step-by-step explanation:

What we need here is to express both charges trough equations, and then find out for which value these equations are equal.

Let X be the amount of additional days of rent.

So, Mikes Movie Rentals cost equations is:

CostMike = 3 + 0.5X

This implies that if there is no additional day (X=0), the cost is $3, if there is one additional day the cost is $3.5, for 2 days $4, and so on ...

Now lets find Reed's Rental cost.:

CostReed = 1.5 + 1.25X

And the interpretation is analogous to the one above. If there is no additional day, Reed's charge is $1.5, for 1 days $2.75, for 2 days $4

(Notice that with the examples I made about interpreting the equations I found out that for 2 days the cost of both is the same. Now lets find it analytically)

For finding the additional days that give the same costs we need to equal both equations:

3 + 0.5 X = 1.5 + 1.25 X

Lets subtract 1.5 from both sides:

3 - 1.5 + 0.5 X = 1.5 - 1.5 + 1.25 X

1.5 + 0.5 X = 1.25 X

Now subtract 0.5 X in both sides:

1.5 + 0.5 X - 0.5 X = 1.25 X - 0.5 X

1.5 = 0.75 X

Dividing both sides by 0.75:

1.5 / 0.75 = 0.75 X / 0.75

2 = X

So, for 2 additional days bith charges are equal.  

6 0
3 years ago
Will give first person to answer brainliest!! At a local baseball game, tickets cost $4 for adults and $2 for students. If there
S_A_V [24]

Answer:

let x adult and y student attended

x+y= 94

x=94-y

again

4x+2y = 294                               53 adults and 41 student attended

376-4y+2y =294                                           the  event

2y =82

y=41

substituting the value of y in

x+y =94

x= 94-41 = 53

Step-by-step explanation:

8 0
2 years ago
Round the following 8.388 to 2 decimal places
Roman55 [17]
The answer will be 8.39 because the third number (8) is above 5 so you have to round up. Good luck!
3 0
3 years ago
BRAINLIEST <br> Please help ASAP and leave a small explanation :)
Andreas93 [3]
1 and 8 are because they are alternate exterior angles
3 0
3 years ago
2/3 times 3/4 in simplest form
cestrela7 [59]

Answer:

1/2

Step-by-step explanation:

2/3 times 3/4 is 6/12, and 6/12 in simplest form is 1/2.

3 0
3 years ago
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