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wlad13 [49]
4 years ago
9

Can someone offer help to this ratio question

Mathematics
1 answer:
AlekseyPX4 years ago
3 0

Answer:

Cherry Pink has not been made (25:17\neq 4:3)

Step-by-step explanation:

Given that she already has 60litres of Rose Pink paint, we use the ratios to determine the volumes of red/white used:

Rose Pink=60l\\\\Red=\frac{1}{3}\times 60\\\\=20l\\\\White=\frac{2}{3}\times 60\\\\=40l

#Add these proportions to the additional red and white paints to determine if Cherry Pink has been made:

V_r=20l+80l\\\\=100l\\\\V_w=40l+28l\\\\=68l\\\\\therefore r:w=100l:68l     \ \ \ \ \  \ \ \ \  \ \# simplify\\\\r:w=25:17

We equate this proportion to the Cherry Pink proportion to verify if Cherry pink has been made:

25:17\neq 4:3

Hence, Cherry pink has not been made.

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Please someone help!!!
nydimaria [60]

Answer:

322 feet

Step-by-step explanation:

first lets plug in our value for s in the equation

.05(70)^2+ 1.1(70)

we then sqaure 70 to get

.05(4900) + 1.1(70)

Then multiply to get

245 + 77

then add to get

322 feet

5 0
3 years ago
Is 3 x 5/6:<br> A: 15/6<br> B:15/18<br><br> ????
kiruha [24]

Answer:

3 x 5/6 is 2.5, so 15/6

Step-by-step explanation:

3/1 x 5/6

6 0
3 years ago
Read 2 more answers
A. Describe the three ways in which two lines may be related
nignag [31]
I think a and c. I really don’t know tho
4 0
3 years ago
Help ASAP thank you
sergey [27]

Answer: Choice A

g(x) = sqrt(2x)

====================================================

Explanation:

"sqrt(x)" is shorthand for "square root of x"

f(x) = 3x^2 is given

g( f(x) ) = x*sqrt(6) is also given

One way to find the answer is through trial and error. This would only apply of course if we're given a list of multiple choice answers.

------------------

Let's start with choice A

g(x) = sqrt(2x)

g( f(x) ) = sqrt(2 * f(x) ) .... replace every x with f(x)

g( f(x) ) = sqrt(2 * 3x^2 ) .... plug in f(x) = 3x^2

g( f(x) ) = sqrt(6x^2 )

g( f(x) ) = sqrt(x^2 * 6)

g( f(x) ) = sqrt(x^2)*sqrt(6)

g( f(x) ) = x*sqrt(6)

We found the answer on the first try. So we don't need to check the others.

------------------

But let's try choice B to see one where it doesn't work out

g(x) = sqrt(x + 3)

g( f(x) ) = sqrt( f(x) + 3)

g( f(x) ) = sqrt(3x^2 + 3)

and we can't go any further other than maybe to factor 3x^2+3 into 3(x^2+1), but that doesn't help things much to be able to break up the root into anything useful. We can graph y = x*sqrt(6) and y = sqrt(3x^2 + 3) to see they are two different curves, so there's no way they are equivalent expressions.

8 0
4 years ago
Read 2 more answers
(h) when is the particle speeding up? (enter your answer using interval notation.) (2,4)∪(6,8) incorrect: your answer is incorre
OverLord2011 [107]
The position of the particle as function of time is given as
f(t)=cos( \frac{\pi t}{4} )

The velocity as function of time is
v(t)= - \frac{\pi}{4} sin( \frac{\pi t}{4} )

A graph of f(t) versus t and of v(t) versus t is shown below.
The velocity increases in the intervals t = (2, 6) and t = (10, 14) and with a periodicity of 8.

In the range t = [0, 16], the velocity increases in the interval t = (2,6)∪(10, 14).

Answer: (2,6)∪(10,14)

3 0
4 years ago
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