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2 years ago

Please answer with clear instructions so that i can apply this to other questions

Mathematics

1 answer:

marishachu [46]2 years ago

4 0

Answer:

1 and - 1

Step-by-step explanation:

The equation of a line passing through the origin is

y = mx ( m is the slope ( gradient ) )

y = x ← is in this form

with gradient m = 1

Parallel lines have equal gradients

Then the gradients of lines parallel to the given line is 1

Given a line with gradient m then the gradient of a line perpendicular to it is

$m_{perpendicular}$ = - $\frac{1}{m}$ = - $\frac{1}{1}$ = - 1

Then the gradients of lines perpendicular to this line is - 1

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Ella collects 50 bottles to recycle. Of the bottles she collects, 19 are plastic and the rest are glass.

nekit [7.7K]

QUESTION A

The total number of bottles Ella collected is
$50$

The number of bottles that are plastic is

$19$

The percentage of bottles that are plastic is

$= \frac{number \: of \: plastic \: bottles}{total \: number \: of \: bottes} \times 100\%$

$= \frac{19}{50} \times 100\%$

$= 19 \times 2\%$
$= 38\%$

Therefore 38% of the bottles are plastic.

QUESTION B

The total number of bottles that are glass is
$50 - 19 = 31$

The total number of bottles Ella collected is
$50$

The percentage of bottles that is glass is
$= \frac{number \: of \: glass \: bottles}{total \: number \: of \: bottles} \times 100\%$

$= \frac{31}{50} \times 100\%$

$= 31 \times 2\%$
$= 62\%$

Therefore 62% of the bottles are glass

8 0

2 years ago

Rewrite the expression ”h8”

IceJOKER [234]

Answer:

h x 8

Step-by-step explanation:

when there is no sign in between that means to multiply

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2 years ago

there are 4 red and 8 blue marbles in a bag, Mark draws a blue marble out of the bag and does not replace it. Mark draws a secon

NISA [10]

Answer:3/5

Step-by-step explanation:when he takes one marble it’s 7/11 and when he takes another it’s 6/10 so simplify and you get 3/5

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2 years ago

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Explain how you write products when there are not enough digits in the product to place the decimal point

WARRIOR [948]

ok for example, u need 5 decimal spaces and your number is 49 all you need to do and add zeros to add your decimal like this-------> 49---->1: 4.9----->2: .49 ---->3: .049----->4: .0049------>5: .00049 so taht would mean that your answer would be .00049

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3 years ago

A middle school took all of its 6th grade students on a field trip to see a play at a theater that has 4600 seats. The students

ahrayia [7]

Answer:

4232

Step-by-step explanation:

92% x 4600

4232

7 0

2 years ago