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3 years ago

7

Evaluate. 6[5(3-9)-1]+2/7(8-2)+4

2 answers:

Leya [2.2K]3 years ago

7 0

Just remember to do PEMDAS (Please excuse my dear aunt sally)
Which means the order you solve the equation is by first doing Parenthesis, then Exponents, Multiplication,Division,Addition, then subtraction.

But the answer is - 1262/7 (btw a negative 126/7)

GREYUIT [131]3 years ago

6 0

If you would like to evaluate 6 * [5 * (3 - 9) - 1] + 2 / 7 * (8 - 2) + 4, you can calculate this using the following steps:

6 * [5 * (3 - 9) - 1] + 2 / 7 * (8 - 2) + 4 = 6 * [5 * (-6) - 1] + 2/7 * 6 + 4 = 6 * [- 30 - 1] + 12/7 + 4 = 6 * [- 31] + 12/7 + 4 = - 186 + 12/7 + 4 = - 182 + 12/7 = - 1274/7 + 12/7 = - 1262/7

The correct result would be - 1262/7.

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Simplify the radical expression63x^15y^9/7xy^11

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Are the 63x and the y being added or multiplied?

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2 years ago

The value of y varies jointly with the values of x and z When x = 4 and z = 10, the value of y is 360.

Igoryamba

Answer:

A

Step-by-step explanation:

Joint variation is given by:

$y=kxz$

Where k is some constant.

We are given that y = 360 when x = 4 and z = 10. Therefore:

$360=k(4)(10)$

Solving for k:

$40k=360\Rightarrow k=9$

Therefore, our equation is:

$y=9xz$

Then when x = 5 and z = 12:

$y=9(5)(12)=540$

The answer is A.

3 0

3 years ago

How many ways can you give 18 cards to 2 people

NeTakaya

9 because 18÷2=9
you can use models to help too
get 18 things and put them in 2 groups

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3 years ago

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2. Jolie manages an annual film festival in her town. Every year, one movie from every genre is chosen as a finalist to win best

Ad libitum [116K]

Answer:

Step-by-step explanation:

All votes: 10*3+18+22+15*3+20+8=143

143*0.2(20%)=28.6 about 28vote (Scifi)

Scifi, 10 adults, 18 children, which is 20% of the votes.

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2 years ago

Einstein Office Equipment has a rental plan for office machines. A fax machine that lists for $722.98 can be rented for 22% of t

Archy [21]

Answer:

$13.68

Step-by-step explanation:

Assuming they rent for 1 year, the cost is broken down as follows:

Annual renting cost = 22% of 722.98 = $\frac{22}{100}*722.98=0.22*722.98=159.06$

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Thus,

Total annual charge = Annual renting cost + Usage charge = 159.06 + 5.09 =164.15

Monthly rental charge would be 164.15 divided by 12 (12 months in 1 year):

$\frac{164.15}{12}=13.68$ dollars

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3 years ago

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