Define the following terms:

Mathematics

1 answer:

Karolina [17]3 years ago

5 0

Answer: the quantity of matter which a body contains, as measured by its acceleration under a given force or by the force exerted on it by a gravitational fieldStep-by-step explanation:

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Elizabeth states, "if the diagonals of a parallelogram are congruent, then the parallelogram is a rhombus." decide if her statem

Igoryamba

Hello,
Answer B: false

the parallelogram is a rectangle

8 0

3 years ago

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Write a system of equations to describe the situation below, solve using elimination.

Sedbober [7]

Answer:

The cost of hardbook is $9 and cost of paperback is $5.

Step-by-step explanation:

Let x be the price for hardback book and y be the price for paperback book.

Mr. Yamamoto purchased 42 new hardcover books and 64 new paperback books, which cost a total of $698.

We can write the equation as:

$42x + 64y = 698$

He also purchased 42 new hardcover books and 58 new paperback books, which cost a total of $668.

We can write the equation as:

$42x + 58y = 668$

We have to use the elimination method to solve the two equations.

We eliminate x by subtracting the two equations.

$42x + 64y-(42x + 58y) = 698 - 668\\\Rightarrow 6y = 30\\\Rightarrow y = 5\\42x + 64(5) = 698\\\\\Rightarrow x = \displaystyle\frac{698 - 64(5)}{42}\\\\\Rightarrow x = 9$