3 years ago

Please help not to sure on this one thank you

Mathematics

1 answer:

belka [17]3 years ago

6 0

The answer would be B. bc you have to divide 168/ 5.25

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Enter the value of a and b that complete the sum: 3/x + 5/x^2 = ax+b/x^2

Aleksandr [31]

Answer:

a= $\frac{3}{x^{2} }$

b=5

Step-by-step explanation:

we are given

$\frac{3}{x} }$ + $\frac{5}{x^{2} }$ =ax+ $\frac{b}{x^{2} }$

we will compare both sides of equaion

$\frac{b}{x^{2} }$ = $\frac{5}{x^{2} }$

comparing both sides we get

b=5

and

$\frac{3}{x} }$ =ax

a= $\frac{3}{x^{2} }$

hence

a= $\frac{3}{x^{2} }$

and b=5

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3 years ago

If I had $33,50 last month and this month I got a raise and brought back $45,70 how much more did I bring back

Effectus [21]

You brought back 12.2

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3 years ago

Write an algebraic expression for the word phrase. five fewer than d days d – 5 5 + d 5 – d d + 5

Troyanec [42]

Answer:

(d-5)

Step-by-step explanation:

we know that

The phrase"five fewer than d days" is equal to subtract 5 from the number d

d minus 5-----> (d-5)

7 0

3 years ago

Read 2 more answers

In the recipe,3/4 cup of white sugar makes 8 slices of pie .if you want 48 slices of pie, how much white sugar do you need

Mashutka [201]

Hi!

We will solve this using proportions, like this:

3/4 cup for 8 slices of pie

x cup for 48 slices of pie

_______________________

x = ((3/4)*48)/8

x = (3*48)/(4*8)

x = 144/32

x = 4,5

You need 4 1/2 cups of white sugar for 48 slices of pie.

Hope this helps!

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3 years ago

Please help with the answer :(

Alenkinab [10]

Answer:

Step-by-step explanation:

3/4

4 0

3 years ago