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3 years ago

NO LINKS OR ANSWERING QUESTIONS YOU DON'T KNOW!!!

Mathematics

1 answer:

Rus_ich [418]3 years ago

8 0

Answer:

Step-by-step explanation:

Assuming the system is solvable in the first place, create an augmented matrix of coefficients from the equations. Then put the matrix into reduced row echelon form.

Example is attached.

"Demonstrate by solving the following system."

You need to provide the system of equations.

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A card is picked at random from a standard deck of cards. What is the sample space for this expirement if you were trying to

kifflom [539]

D samplsce space =52

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3 years ago

Read 2 more answers

-11= x-3/2....................................

Alika [10]

Answer:

Hi! The correct answer is x=-19/2

Step-by-step explanation:

~Solve for x by simplifying both sides of the equation, then isolating the variable~

4 0

2 years ago

At a restaurant, you order a meal that costs $8. you leave a 15% tip. the sales tax is 6%. what is the total cost of the meal?

Oksi-84 [34.3K]

Easy! multiply the 6% by $8 then add it to the $8, now, multiply the 15% by the total of the cost with tax. then you all that to the total. ($9.75)

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2 years ago

Adam is building a rectanglar swimming pool. The perimeter of the pool must be no more then 120 feet. If the length of the pool

jasenka [17]

Answer:

$W\leq 38\ ft$

The maximum width must be $38\ ft$

Step-by-step explanation:

Let

L ----> the length of the rectangular pool

W ---> The width of the rectangular pool

we know that

$P\leq 120\ ft$

$P=2(L+W)$

$2(W+L)\leq 120$ ----> inequality A

we have

$L=22\ ft$

substitute the value of L in the inequality A

$2(W+22)\leq 120$

simplify

$(W+22)\leq 60$

$W\leq 60-22$

$W\leq 38\ ft$

The maximum width must be $38\ ft$

3 0

3 years ago

The ratio of 1 3/4 to 2 1/2 is equal to the ratio of 14 to what number?

Lynna [10]

Answer:

x = 20

Step-by-step explanation:

Write and solve an equation of ratios, as follows:

1 3/4 14

------------ = --------

2 1/2 x

where x is the unknown number.

Converting the mixed numbers to improper fractions, we get:

7/4 14

------ = -----

5/2 x

Here there are two numerators and two denominators. Multiplying all four quantities by 4 will remove some of the fractions:

7 56

------ = -------

10 4x

Cross multiplying, we get:

28 x = 560, or x = 20

7 0

2 years ago