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3 years ago

Simplify (7)(-6). need help

2 answers:

7 0

The answer is: - 42 because, 7 x 6 = 42. And since the 6 is next to a negative number, you will add a negative sign next to 42, and your final answer will be: "-42"

Please mark as brainliest answer

dexar [7]3 years ago

5 0

As simple as it can go is As it's multiplied out form, which is -42.

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The patriot diner sells 2 cheeseburgers and one soda for $11.00 and 3 hamburgersand 2 sodas for $18.00. What is the cost of a ch

kvasek [131]

Answer: the cost of a cheeseburger is $4

Step-by-step explanation:

Let x represent the cost of one cheeseburgers.

Let y represent the cost of one Soda.

The patriot diner sells 2 cheeseburgers and one soda for $11.00. It means that

2x + y = 11 - - - - - - - - - - - 1

She also sells 3 cheeseburgers and 2 sodas for $18.00. It means that

3x + 2y = 18 - - - - - - - - - - -2

Multiplying equation 1 by 3 and equation 2 by 2, it becomes

6x + 3y = 33

6x + 4y = 36

Subtracting, it becomes.

- y = - 3

y = 3

Substituting y = 3 into equation 1, it becomes

2x + 3 = 11

2x = 11 - 3 = 8

x = 8/2 = 4

6 0

3 years ago

Please Do 3 for 5 points.

alukav5142 [94]

Answer:

44, 46, and 48

Step-by-step explanation:

add them and you should get 138.

7 0

3 years ago

Use Fermat's Little Theorem to determine 7^542 mod 13.

m_a_m_a [10]

$a^{p-1} \equiv 1 \pmod p$ where $p$ is prime, $a\in\mathbb{Z}$ and $a$ is not divisible by $p$ .

$7^{13-1}\equiv 1 \pmod {13}\\7^{12}\equiv 1 \pmod {13}\\\\542=45\cdot12+2\\\\7^{45\cdot 12}\equiv 1 \pmod {13}\\7^{45\cdot 12+2}\equiv 7^2 \pmod {13}\\7^{542}\equiv 49 \pmod{13}$

4 0

3 years ago

Read 2 more answers

What is the value of the expression 6/7 divided by 3/4

liraira [26]

The answer is 8/7. 6/7 divided by 3/4 = 6/7 x 4/3. 6/7 x 4/3 = 24/21 = 8/7

3 0

2 years ago

Each of the 459 guests attending the Honor Roll breakfast gets a muffin. Muffins come in packages of 12. How many packages are n

baherus [9]

Answer:

38.25 packages

Step-by-step explanation:

Number of guests = 459

Each guest gets 1 muffin

Muffin comes in packages of 12

Hence,

The number of packages is calculated as:

459/12 = 38.25 packages

Hence, 38.25 packages are needed so there are enough muffins for every guest.

7 0

2 years ago