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4 years ago

10

Solve -9/2y = 27/2 for y

1 answer:

slavikrds [6]4 years ago

4 0

Answer: y = -3

I hope this helps you

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Variable p is 2 more than variable d. Variable p is also 1 less than variable d. Which pair of equations best models the relatio

goldenfox [79]

If you would like to find a pair of equations that best models the relationship between p and d, you can do this using the following steps:

p is 2 more than d ... p = d + 2
p is 1 less than d ... p = d - 1

The correct result would be p = d + 2 and <span>p = d - 1.</span>

4 0

3 years ago

Read 2 more answers

For each month of a given year except December, a worker earned the same monthly salary and donated one-tenth of that salary to

kiruha [24]

Answer:

D) 11/3

Step-by-step explanation:

Let x represent monthly salary.

We have been given that for each month of a given year except December, a worker earned the same monthly salary and donated one-tenth of that salary to charity.

Salary earned in 11 months would be $11x$ .

Money donated in 11 months would be $\frac{11x}{10}$ .

Further we are told that in December, the worker earned N times his usual monthly salary and donated one-fifth of his earnings to charity.

Salary for December would be $Nx$ .

Money donated in December would be $\frac{Nx}{5}$ .

The worker's charitable contributions totaled one-eighth of his earnings for the entire year that is $\frac{1}{8}\cdot (11x+Nx)$ .

$\frac{11x}{10}+\frac{Nx}{5}=\frac{1}{8}\cdot (11x+Nx)$

Dividing whole equation by x, we will get:

$\frac{11x}{10x}+\frac{Nx}{5x}=\frac{1}{8x}\cdot x(11+N)$

$\frac{11}{10}+\frac{N}{5}=\frac{1}{8}\cdot (11+N)$

$\frac{11}{10}+\frac{N}{5}=\frac{11}{8}+\frac{N}{8}$

Combine like terms:

$\frac{N}{5}-\frac{N}{8}=\frac{11}{8}-\frac{11}{10}$

$\frac{N}{5}*40-\frac{N}{8}*40=\frac{11}{8}*40-\frac{11}{10}*40$

$8N-5N=11*5-11*4$

$3N=55-44$

$3N=11$

$\frac{3N}{3}=\frac{11}{3}\\\\N=\frac{11}{3}$

Therefore, the value of N is 11/3 and option D is the correct choice.

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3 years ago

Find the smallest common multiple (PPMC) of 4 and 8:

Aloiza [94]

Answer:

8

Step-by-step explanation:

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3 years ago

If a is positive whole number which is greater a/5 or a/8 ?

strojnjashka [21]

Answer:

a/5

Step-by-step explanation:

You can choose a random number for a and see which is greater. For example, you can say a = 40.

That would mean a/5 = 8 and a/8 = 5. Since 8 is greater than 5, a/5 will always be greater.

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3 years ago

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Find the value of y when x equals 11.<br><br> 7x - 9y = 23

Brrunno [24]

Answer:

y = 6

Step-by-step explanation:

Just plug 11 into x then flip - 9y and 23 by picking the opposite sign so + to - or - to +

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3 years ago