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4 years ago

Plz help will mark brainliest and plz show how you did the steps.

Mathematics

1 answer:

Ronch [10]4 years ago

5 0

Step-by-step explanation:

1/8 cup of oil is needed for every 1 cup of mix.

As 1/8 * 4 = 4/8 = 1/2, 1/2 cup of oil is needed for every 4 cups of mix.

Owen wants 3 1/2 cups of mix, which is less than 4. Hence he has enough oil.

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2. The diagram shows a door that has a window in it. The front faces of the door and window are similar rectangles that have the

Shkiper50 [21]

H=150cm

Because these rectangles are similar then they can be dilated to get to the same size as the other.

First you want to find what the scale factor (dilation degree) from the big rectangle to the small. So to do this you want to but your SMALLER value on the top while the BIGGER value on the bottom of your fraction to find the scale factor. This would then look like 60/84. You could simplify this fraction to 5/7.

You can then use this fraction to multiply by the other side of the big rectangle so that you find h. 210*5/7=1050/7. When this is simplified you will get 1050/7=150

6 0

3 years ago

Read 2 more answers

What are three main ways in Whitehall organisms interact

Degger [83]

Answer:

http://www.classzone.com/science_book/mls_grade6_FL/540_547.pdf

Step-by-step explanation:

7 0

4 years ago

Find LCM of: x2 - 9, 3x3 + 81

VikaD [51]

Answer:

$\boxed{\pink{\sf (x + 3) \ is\ the \ LCM . }}$

Step-by-step explanation:

Given two expressions ,

$\qquad (1)\: x^2 - 9 \\\\ \qquad (2)\:3x^3 + 81$

And , we need to find the LCM , that is lowest common factor . So , let's factorise them seperately .

Factorising x² - 9 :- 

$= x^2 - 9 \\\\= x^2 - 3^2 \\\\ \red{= (x+3)(x-3)} \qquad\bf [Using \ a^2-b^2 = (a+b)(a-b) ]$

Factorising 3x³ + 81 

$= 3x^3 + 81\\\\= 3(x^3+27) \\\\= 3( x^3+27) \\\\ = 3(x^3+3^3) \\\\ \red{= 3 [ (x+3)(x^2+9-3x) ] } \qquad \bf{[ Using \ a^3+b^3=(a+b)(a^2+b^2-ab) ] }$

Hence we can see that (x+3) is common factor in both expressions.

Hence the LCM is ( x+3 ) .

8 0

3 years ago

Wat are the two qualifications a graph must follow for it to be proportional

Oksi-84 [34.3K]

The two requirements for a proportional relationship are: The ratio of the two variables maintain the same ratio.

4 0

3 years ago

I need help with 2 plz help

Tatiana [17]

Answer:

a=31.61

Step-by-step explanation:

Pythagorean theorem states that square hypotenuse side is equal to square opposite side plus square adjacent side

Hyp²= Opp²+Adj²

the opposite is represented by a in the question, so

60²=a²+51²

3600=a²+2601

combine the like terms

3600-2601=a²

999=a²

a²=999

square root both sides to remove the square

√a²=√999 {square cancels the square root

a=√999

a=31.606

a=31.61 approximately

7 0

3 years ago