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Dafna1 [17]
4 years ago
11

PLEASE HELP!!!! EMERGENCY!!! PLEASE HELP ME!!!!!!!!! 

Mathematics
1 answer:
ch4aika [34]4 years ago
3 0
6 Books

$77.49 is the Total.
$3.99 is the Shipping.
$12.25 is the cost of each individual book.

First find the difference between the total and the shipping.

$77.49 - $3.99 = $73.50

Then divide the product with the cost of each book.

$73.50 ÷ $12.25 = 6 Books
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Add the binomial (8a + 3) + (a + 2)​
Juli2301 [7.4K]

Answer:

9a+5

Step-by-step explanation:

We add only like terms:

8a+a=9a

3+2=5

9a+5

So 9a+5 would be our final answer

3 0
3 years ago
Read 2 more answers
Which graph represents a line with a slope of and a y-intercept equal to that of the line y = x – 2?
Rudiy27

Answer:

The last graph.

Step-by-step explanation:

The first thing we look for is the y-intercept at -2.  The only graphs where the line passes through the y-intercept at this point are the first and the last.

The slope of the line we want is -2/3.  This means the line decreases; the first graph increases, not decreases, so it must be the fourth one..

Checking the fourth graph, from the y-intercept, we go down 2 and over 3 to find the next point; this means the slope is -2/3 and this is the correct line.

3 0
3 years ago
Read 2 more answers
3. What is the correct factorization of x2 – 2x – 15?
DedPeter [7]

Answer:

(x+3)(x−5)

Step-by-step explanation:

to factor, simply just think of what two numbers multiplied together would give you -15 but added together give you -2. since the produce is negative, you know one number is positive, and one is negative, and since the sum is also negative, you know that the larger root is negative

3 0
4 years ago
Read 2 more answers
I really need help on this question can someone help me I will give Brainliest for correct answer!!!
lawyer [7]

Answer:

The rectangle with 5 and 4

The triangle with 10 and 4

Brainliest pls :)



3 0
3 years ago
28.5 g of iron shot is added to a graduated cylinder containing 45.50 mL of water. the water level rises to the 49.10 mL mark. F
Alika [10]
Density=mass/volume.
1) we have to calculate the iron volume in liters.
iron volume=second level - first level=49.10 ml-45.50 ml=3.6 ml
3.6 ml=3.6 ml(1 liter / 1000 ml)=0.0036 liters 

2) we calculate the mass iron in kg.
28.5 g=28.5 g(1 kg /1000 g)=0.0285 kg.
2) we calculate the density of iron.
density=0.0285 kg / 0.0036 liters=7.92 kg/L

7.92 kg/l=7.92 kg/L(1000 g/1Kg)(1000 cm³/1 L)=7.92 g/cm³.

answer: From this information the Iron density is 7.92 Kg/L or  7.92 g/cm³.
5 0
4 years ago
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