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Annette [7]
3 years ago
14

Martin buys 3 hardcover books and 4 paperback books for $6.50. Anna buys 2 hardcover books and 6 paperback books for $6.00. What

is the cost, in dollars, of each hardcover book?
Mathematics
1 answer:
Travka [436]3 years ago
6 0

Answer: Each hard cover book is worth $1.50

Step-by-step explanation:

Hard cover is worth $1.50, so the softcover is worth 0.50, 3x1.5 is 4.5, 4x0.50 is 2, 2+4.5=6.50

You might be interested in
The opposite process rule says to solve for ________. a known variable by replicating the process used to form the original equa
ioda

Answer:

An unknown variable by reversing the process used to form the original equation.

Step-by-step explanation:

The opposite process rule says to solve for - an unknown variable by reversing the process used to form the original equation.

If an equation indicates an operation such as addition, subtraction, multiplication, or division, solve for the unknown variable by using the opposite process.

For example:

Lets say we have to find x+25=35

Here 25 is subtracted from both sides of the equation to isolate x.

x+25-25=35-25

we get x = 10

Check this : 10+25=35

4 0
3 years ago
Mariah’s parents got into a car accident. They took their car to the
KatRina [158]

Answer: The mechanics spent about 8.5 hours working on the car

Step-by-step explanation: The total bill was $637, a portion of that being getting the parts which was $280. 637-280=357

357/42=8.5

5 0
3 years ago
Find the circumference of a circle whose.<br> A. Diameter is 14cm<br> B. Radius is 3.5cm
Nikitich [7]

Hello!

Circumference of a Circle

C=πd

or

C=2πr

Plug in the values

C=14π

C≈44 cm

C=2π×3.5

C≈22 cm

Hope everything is clear.

Let me know if you have any questions!
#KeepLearning

;-)

5 0
2 years ago
In a game of tug of war, your team changes -2 1/2 feet in position every 10 seconds. What is your change in position after 40 se
Airida [17]
The answer is -10

-2 1/2 x 4 = -10
8 0
3 years ago
Solving equations and Inequalities 1 ) -10p=2(p-12)
MArishka [77]
The answer is 2 = p
Explanation: Here the goal is to get the variable "p" by itself, so first your have to distribute 2 to (p-12) which gives you -10p = 2p-24. Then you add 10p on both sides so that the variable is on one side. Then you add 24 to both sides. After that you divide 12 from both sides, giving you 2 = P

-10P = 2(p-12)
-10p = 2p-24
+10p +10p
0 = 12p-24
+24 +24
24 = 12p
24÷12 = 12p÷12
2 = p
5 0
3 years ago
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