MATHEMATICS HIGH SCHOOL

You are mowing a lawn. After 12 minutes, 52% of the lawn still needs mowed. How long does it take to mow the entire lawn? Write an equation that represents the percent y of the lawn that still needs mowed after x minutes.

Answers

Answer 1

Answer:

The time taken to mow the entire lawn will be 23 minutes.

Let the total time taken be represented by x.

Based on the information given, the total time needed will be:

52% × x = 12

0.52 × x = 12

0.52x = 12

x = 12/0.52

x = 23.08

Therefore, the time taken to mow the entire lawn will be 23 minutes.

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Answer 2

Answer: for 12 min you did 48% so
for one min you do 4%
x*4%=100%
x=25

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A machinist can produce 114 parts in 6 mins.At this rate,how many parts can the machinist produce in 15 mins

Answers

$114\ parts\ in\ 6\ min\n\nx\ parts\ in\ 15\ min\n\nmaking\ proportion:\n114-6\nx-15\n\ncross\ multiplication\n\n114*15=6x\n\n1710=6x\ \ \ \ | divide\ by\ 6\n\nx=285\n\n285\ parts\ can\ be\ produced\ in\ 15min$

Answer:

thx for points

Step-by-step explanation:

hehe

Write as a product: a-b+a^2-B^2

Answers

Answer: (a - b)(a + b + 1)

a - b + a² - b²

= (a - b) + (a - b)(a + b)

= (a - b)(a + b + 1)

Step-by-step explanation:

Solve x^2 + 14x + 17 = –96 for x

Answers

x =(-14+√-256)/2=-7+8i= -7.0000+8.0000i

or

x =(-14-√-256)/2=-7-8i= -7.0000-8.0000i

A box of candy weighs 340.23 grams and costs $18.99. if 1 gram is approximately 0.03527 ounces, what is the unit price per ounce of the candy?

Answers

340.23 / 0.03527 =9,646.44
$18.99 / 9,646.44 = .0019686
340.23 / 18.99 = 17.91
17.91 x .0019686 = .0352576

The sum of two numbers is 92. One fifth of the first number added to one half of the second number is 34. Find the two numbers.

Answers

x + y = 92

x/5 + y/2 = 34 / both sides *10
10.x/5 + 10.y/2 = 340
2x + 5y = 340
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x + y = 92 /both sides *-2
2x + 5y = 340

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-2x -2y = -184
+ 2x +5y = 340
3y = 156
y = 32

x + y = 92
x + 32 = 92
x = 60

$x+y=92\n (1)/(5)x+(1)/(2)y=34\n\n x=92-y\n 2x+5y=340\n\n 2(92-y)+5y=340\n\ 184-2y+5y=340\n 3y=156\n y=52\n\n x+52=92\n x=40$

Please help me solve this question

Answers

The fraction is equal 0 if the numerator is equal 0.

$(12)/(x(x+8))=0\iff12=0\ FALSE$

Therefore your answer is 1. 0

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