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2 years ago

Simplify 3(12 - 8) + 5

Mathematics

2 answers:

lukranit [14]2 years ago

6 0

Answer:

3(4) + 5

Step-by-step explanation:

Use BIDMAS (Brackets, indicies, division, multiplication, addition, subtraction.)

Goryan [66]2 years ago

6 0

Answer:

Step-by-step explanation:

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3 years ago

Eli's Electronics has 60-inch television on sale this week for $798. The television is regularly priced for $1050. By what perce

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Answer: that would be 76% hope that helps

Step-by-step explanation:

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2 years ago

The sum of squares of two consecutive odd numbers is 514 find the numbers

amid [387]

Correct Question : The sum of squares of two consecutive positive odd numbers is 514. Find the numbers.

$\rule{130}1$

Solution :

Let the two consecutive positive odd numbers be x and (x + 2)

$\rule{130}1$

☯ $\underline{\boldsymbol{According\: to \:the\: Question\:now :}}$

$:\implies\sf x^2 + (x + 2)^{2} = 514 \\\\\\:\implies\sf x^2 + x^2 + 4x + 4 = 514\\\\\\:\implies\sf 2x^2 + 4x + 4 = 514 \\\\\\:\implies\sf 2x^2 + 4x = 514 - 4\\\\\\:\implies\sf 2x^2 + 4x = 510 \\\\\\:\implies\sf 2x^2 + 4x - 510 = 0\\\\\\:\implies\sf x^2 + 2x - 255 = 0 \:\:\:\:\:\Bigg\lgroup \bf{Dividing\:by\:2}\Bigg\rgroup\\\\\\:\implies\sf x^2 + 17x - 15x - 255 = 0\\\\\\:\implies\sf x(x + 17) - 15(x + 17) = 0\\\\\\:\implies\sf (x + 17) (x - 15)\\\\\\:\implies\sf x = - 17\:or\:x = 15\\\\\\:\implies\underline{\boxed {\sf x = 15}}\:\:\:\:\:\Bigg\lgroup \bf{Positive\:odd\: number}\Bigg\rgroup$

When,

$\bullet\: \textsf {x = } \textbf {15}$

$\bullet\: \sf x + 2 = 15 + 2 =\textbf{ 17}$

$\therefore\:\underline{\textsf{The required positive integer is \textbf{15 and 17}}}.$

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3 years ago

Gail baked some cookies. She sold 2/7 of the cookies on Monday. She sold 1/3 more of the cookies on Tuesday than on Monday. What

Zina [86]

So 2/7 cookies on Monday
n 1/3 more on Tuesday
so we are going to fine Tuesday's amount , to find what fraction did Gail sell on the two days
so
2/7 + 1/3
find lCM which is 21
u add and get 13/21 so 31/21+2/7=19/21

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3 years ago

Giving brainiest and thanking you if your answer is correct

r-ruslan [8.4K]

Answer:

-4

Step-by-step explanation:

4 0

2 years ago

Read 2 more answers