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tigry1 [53]
4 years ago
8

If 75% is £45 what is the full cost

Mathematics
1 answer:
SpyIntel [72]4 years ago
6 0
X × 75% = £45
x = £45 / 75%
x = £45 / 0,75
x = £60
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nordsb [41]

The system of equations provides a unique solution(one solution) at (-0.6, 1.6).

<h2>Given to us,</h2>
  1. y=\dfrac{2}{3}x+2
  2. 6x-4y=-10

<h3>Equation 2</h3>

As we already have the value of y from equation 1, substitute its value in equation 2,

6x-4y=-10

6x-4(\dfrac{2}{3}x+2)=-10

6x-\dfrac{8}{3}x-8=-10

\dfrac{6x}{1}-\dfrac{8}{3}x=-10+8

\dfrac{6x\times 3}{1\times 3}-\dfrac{8}{3}x=-2

\dfrac{18x-8x}{3}=-2

10x=-6\\

x=\dfrac{-6}{10} \\\\x=-0.6

<h3>Equation 1,</h3>

y=\dfrac{2}{3}x+2

substitute the value of x in equation 1,

y=\dfrac{2}{3}(\dfrac{-6}{10})+2\\\\y = \dfrac{-2}{5}+2\\\\y= \dfrac{-2+10}{5}\\\\y = \dfrac{8}{5}\\\\y=1.6

As we can see the system of equations provides a unique solution(one solution) at (-0.6, 1.6).

Learn more about the system of equations:

brainly.com/question/12895249

3 0
3 years ago
If y varies directly as x and y = 5.5 when x = 11, find x when y = 3.5<br><br> help
dlinn [17]

Answer:

7

Step-by-step explanation:

Let us say that y_{1}= 5.5, x_{1}= 11, and y_{2} = 3.5.

\frac{y_{2}}{y_{1}} =\frac{x_{2}}{x_{1}}

\frac{3.5}{5.5} =\frac{x_{2}}{11}

\frac{7}{11} =\frac{x_{2}}{11}

x_{2} =7

I hope this is correct and helps you!

5 0
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16.54 as a mixed number
harkovskaia [24]
16.54 as a mixed number is 16 27/50
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DanielleElmas [232]

Answer:

y-1 = 3(x-2)

Step-by-step explanation:

Point slope form is

y-y1 = m(x-x1) where m is the slope and (x1,y1) is a point on the line

y-1 = 3(x-2)

8 0
3 years ago
A sow had a litter of 10 piglets. Out of those 10 piglets 3 of them were pink. what is the percentage of the litter was not pink
yarga [219]

3/10 was pink so 7/10 was not

7/10= 70% was not pink

8 0
4 years ago
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