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Aleksandr [31]
2 years ago
10

Choose the inequality that illustrates this problem. Basil wants to buy his mother a gift and a gift bag. He bought her a pretty

sweater for $38. How much can he spend on a gift bag if he cannot spend more than $42?
Mathematics
1 answer:
VikaD [51]2 years ago
8 0
He can only spend $4 on the bag
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What is the difference x/x^2-16-3/x-4
kenny6666 [7]

General Idea:

When simplifying a rational expression, we need to do the below steps:

(i) Factor the Denominator of each fraction

(ii) Identify the Least Common Denominator (It is the product of prime factors involved with its highest exponent)

(iii) Identify and rewrite the equivalent fraction with the desired LCD.

(iv) Once the denominator are same, Combine the numerator.

Applying the concept:

What is the difference x/x^2-16-3/x-4

I assume that you mean to type the expression \frac{x}{x^{2}-16}  -\frac{3}{x-4}

Step 1: Factoring x^{2} -16

x^{2} -16=x^{2} -4^{2} =(x+4)(x-4)

Step 2: Identifying the LCD, we get (x+4)(x-4)

Step 3: Rewriting the second fraction by multiplying x+4 on both top and bottom of second fraction so that we get the LCD.

\frac{x}{x^2-16}-\frac{3}{x-4}=\frac{x}{(x+4)(x-4)}   -\frac{3*(x+4)}{(x-4)*(x+4)} Step 4: Combine like terms since the denominators are same[tex] \frac{x-3(x+4)}{(x+4)(x-4)} =\frac{x-3x-12}{(x+4)(x-4)}=\frac{-2x-12}{(x+4)(x-4)} =\frac{-2(x+6)}{(x+4)(x-4)}

Conclusion:

In factored form the simplified expression =\frac{-2(x+6)}{(x+4)(x-4)}

In expanded form the simplified expression =\frac{-2x-12}{x^2-16}

8 0
3 years ago
Use elimination to solve the system for 4x + 7 y equals -14 + 8 x + 5 y equals 8 for x​
olga2289 [7]

9514 1404 393

Answer:

  (x, y) = (3.5, -4)

Step-by-step explanation:

Elimination is easiest if one of the coefficients of a variable is a multiple of the other coefficient of the variable. Here, we have x-coefficients of 4 and 8, so it will be easiest to eliminate x.

Subtract the second equation from 2 times the first.

  2(4x +7y) -(8x +5y) = 2(-14) -(8)

  9y = -36 . . . . . simplify

  y = -4 . . . . . . . divide by 9

  4x +7(-4) = -14 . . . . substitute for y in the first equation

  4x = 14 . . . . . . . add 28

  x = 3.5 . . . . divide by 4

The solution is (x, y) = (3.5, -4).

4 0
3 years ago
What is the answer plz
Bumek [7]

Answer:

9 days

Step-by-step explanation:

He sets his watch 12 seconds behind

For every day that passes it falls back another 1 second

So once it is 21 seconds behind all you have to do is subtraction to find the amount of days past

21 - 12 = 9

Since its 12 seconds behind already itll take 9 days to be behind 9 more seconds.

6 0
3 years ago
Select the scenario that could be modeled by each of the given equations. For each equation, the variable c represents the cost
elena-14-01-66 [18.8K]

Answer:

c = 1.41n i think lol

Step-by-step explanation:

7 0
2 years ago
Velma needs to crate 59 watermelons. If she can fit 7 watermelons in each crate, how many crates does she need?
Mademuasel [1]

Answer:

The answer would be nine

Explanation:

59 divided by 7 is 8 with 3 remaning but all must be included so you have anothr crate for the remaining the and sice 8+1=9. Velma needs 9 crates. Hope this Helps!!

5 0
3 years ago
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