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3 years ago

4) Which expression is equivalent to

Mathematics

2 answers:

AVprozaik [17]3 years ago

5 0

Answer:

The answere is C-) 98 mt

Step-by-step explanation:

7(8m + 6t) = 56m + 42 t

= 98 mt

xxTIMURxx [149]3 years ago

3 0

Answer:

Step-by-step explanation:

7x8m=56m

7x6t=42t

56m+42t=98mt

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What is the x-value of the solution to the system of equations?

ValentinkaMS [17]

Answer:

The solution to the system of equations is:

$x=4,\:y=-3$

Step-by-step explanation:

Given the system of equations

$5x + 4y =8$

$2x- 3y = 17$

solving the system of equations

$\begin{bmatrix}5x+4y=8\\ 2x-3y=17\end{bmatrix}$

$\mathrm{Multiply\:}5x+4y=8\mathrm{\:by\:}2\:\mathrm{:}\:\quad \:10x+8y=16$

$\mathrm{Multiply\:}2x-3y=17\mathrm{\:by\:}5\:\mathrm{:}\:\quad \:10x-15y=85$

$\begin{bmatrix}10x+8y=16\\ 10x-15y=85\end{bmatrix}$

$10x-15y=85$

$-$

$\underline{10x+8y=16}$

$-23y=69$

$\begin{bmatrix}10x+8y=16\\ -23y=69\end{bmatrix}$

solve for y

$-23y=69$

Divide both sides by -23

$\frac{-23y}{-23}=\frac{69}{-23}$

$y=-3$

$\mathrm{For\:}10x+8y=16\mathrm{\:plug\:in\:}y=-3$

$10x+8\left(-3\right)=16$

$10x-24=16$

$10x=40$

Divide both sides by 10

$\frac{10x}{10}=\frac{40}{10}$

$x=4$

Thus, the solution to the system of equations is:

$x=4,\:y=-3$

7 0

2 years ago

6. Richy has a bag of marbles. He gave 5/12 of

Tems11 [23]

Answer:

7/12

Step-by-step explanation:

12/12-5/12=7/12

7 0

2 years ago

A family went to a baseball game. They parked the car in a parking lot which charged $5. The cost per ticket was $21. Write an

Masteriza [31]

Answer:

y = 21x + 5

Step-by-step explanation

The cost for the parking spot does not change, while the cost per ticket can (depending on how many people there are).

5 0

2 years ago

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Samantha is trying to decide between two brands of crackers. Brand A: $1.12 for 8 ounces Brand B: $1.56 for 12 ounces. What is t

andre [41]

Answer:

Step-by-step explanation:

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3 years ago

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A _[blank 1]_ is a number whose only factors are 1 and itself. If a number has other factors besides 1 and itself, it is called

kykrilka [37]

Numbers whose only factors are 1 and itself is known as prime numbers , numbers whose factors besides 1 and itself are composite numbers, we can use the sieve of Eratosthenes to determine whether the number is prime or composite.

Given a paragraph in which there are blanks:

A _____ is a number whose only factors are 1 and itself. If a number has factors besides 1 and itself, it is called a _____. You can use divisibility rules or _______ to help you determine whether a number is prime or composite.

We are required to fill the blank with appropriate options.

We have to fill "prime numbers" in the first blank.

We have to fill "composite numbers" in the second blank.

We have to fill "the sieve of Eratosthenes" in the third blank.

Hence numbers whose only factors are 1 and itself is known as prime numbers , numbers whose factors besides 1 and itself are composite numbers, we can use the sieve of Eratosthenes to determine whether the number is prime or composite.

Learn more about prime numbers at brainly.com/question/145452

#SPJ1

3 0

1 year ago