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2 years ago

9

Can someone please help me on this question

1 answer:

Grace [21]2 years ago

3 0

Answer: ? = 72

Step-by-step explanation:

We will set up a proportion to solve.

$\displaystyle \frac{?}{56} =\frac{45}{35}$

Now, we will cross-multiply.

? * 35 = 56 * 45

35? = 2,520

? = 72

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Fitness Classes cost £6 per person. The table shows the number of people who go to the classes on Thursday, Friday and Saturday.

nignag [31]

Answer:

£216

Step-by-step explanation:

Cost = £6 per person
Teacher earns = 90% of total

<u>Total number of people:</u>

13 + 11 + 16 = £40

<u>Total paymen</u>t:

40*6= £240

<u>Teacher earns in total per given week:</u>

240*90/100 = £216

5 0

4 years ago

What is the solution of the system of equations

White raven [17]

Answer:

It the 3rd one it's correct cuz i worked it out

Can i have a brainliest please!!:)

Step-by-step explanation:

solve your system by substitution.

c+3d=8;c=4d−6

Rewrite equations:

c=4d−6;c+3d=8

Step: Solve c=4d−6for c:

c=4d−6

Step: Substitute4d−6forcinc+3d=8:

c+3d=8

4d−6+3d=8

7d−6=8(Simplify both sides of the equation)

7d−6+6=8+6(Add 6 to both sides)

7d=14

7d

7

=

14

7

(Divide both sides by 7)

d=2

Step: Substitute2fordinc=4d−6:

c=4d−6

c=(4)(2)−6

c=2(Simplify both sides of the equation)

Answer:

c=2 and d=2

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3 years ago

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likoan [24]

What is x in this situation?

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serious [3.7K]

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Step-by-step explanation:

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Serggg [28]

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3 years ago