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3 years ago

A recipe Requires 1/8 cup of oil for everyone half cup of water how much oil in cups is needed per cup of water

Mathematics

1 answer:

DaniilM [7]3 years ago

4 0

Answer:

1/4 cup of oil for every 1 cup of water

Step-by-step explanation:

Lets take a look at the information given in the question

The recipe requires 1/8 cup of oil for every 1/2 cup of water.

We know that 1/2 + 1/2 is 1/1, or just 1 simplified

So if we are doubling the amount of water in the recipe, we have to do the same to the oil.

1/8 + 1/8 = 2/8, or 1/4 simplified

So the answer is 1/4 cup of oil to every 1 cup of water

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8.Find the value of c that makes the expression be a perfect square trinomial p^2-30p+c

Darina [25.2K]

Hope this is the right one.

Problem 8
p^2 - 30p + c
Step One
Take 1/2 of - 30
1/2 * -30 = - 15

Step 2
Square -15
(-15)^2 = 225
c = 225

Problem Nine
$\text{x = }\dfrac{ -b \pm \sqrt{b^{2} - 4ac } }{2a} 
$
a = 1
b = 4
c = -15
$\text{x = }\dfrac{ -4 \pm \sqrt{4^{2} - 4*1*(-15) } }{2*1}$
$\text{x = }\dfrac{ -4 \pm \sqrt{\text{16} + \text{60} } }{2}$

x = [-4 +/- sqrt(76)] / 2
x = [-4 +/- 2*sqrt19]/2
x = [-4/2 +/- 2/2 sqrt[19]
x = - 2 +/- sqrt(19)

x1 = - 2 + sqrt(19)
x2 = -2 - sqrt(19)

These two can be broken down more by finding the square root. I will leave them the way they are. It's just a calculator question if you want it to go into decimal form.

Problem Ten

a = 1
b = 4
c = -32

The discriminate is sqrt(b^2 - 4ac)
D = sqrt(b^2 - 4ac)
D = sqrt(4^2 - 4(1)(-32)
D = sqrt(16 - - 128)
D = sqrt(16 + 128)
D = sqrt(144)
D = +/- 12

Since D can equal + or minus 12 there must be 2 possible (and different) roots. As a matter of fact, this quadratic can be factored.
(x + 8)(x - 4) = y
But that' s not what you were asked for.
The discriminate is > 0 so the roots are going to be real.
Answer; The discriminate is > 0 so there will be 2 real different roots.

4 0

2 years ago

23. Lines p and q are parallel.

fenix001 [56]

Answer:

$\angle \: 2 = 60 \degree..(alternate \: \angle s)$

8 0

2 years ago

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Sharon uses 6.3 pints of blue paint and white paint to paint her bedroom walls. 4 5 of this amount is blue paint, and the rest i

Y_Kistochka [10]

Given:

Sharon uses 6.3 pints of blue paint and white paint to paint her bedroom walls.

$\dfrac{4}{5}th$ of this amount is blue paint and the rest is white paint.

To find:

The pints of white paint did she use to paint her bedroom walls.

Solution:

We have,

Total paint used = 6.3 pints

Blue paint = $\dfrac{4}{5}th$ of total paint used

= $\dfrac{4}{5}\times 6.3$

= $5.04$

White paint = Total paint used - Blue paint

= $6.3-5.04$

= $1.26$

Therefore, Sharon uses 1.26 pints of white paint to paint her bedroom walls.

5 0

2 years ago

Select all that apply. the theorems in the lesson are followed by which of the following?

musickatia [10]

Answer: E

Step-by-step explanation: In mathematics, a theorem is a statement that has been proven on the basis of previously established statements, such as other theorems, and generally accepted statements, such as axioms. A theorem is a logical consequence of the axioms. ... Many mathematical theorems are conditional statements.

7 0

3 years ago

Read 2 more answers

write an equation of the line that is parallel to the line whose equation is 4y+9=2x and passes through the point (7,2)

Liula [17]

Ok so we’ll put the first equation into slope int form

4y=2x-9

y=1/2x -4/9

since the likes are parallel, the slope of the line we are trying to write an equation for is 1/2

equation:

y-2=1/2(x-7)

7 0

2 years ago