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valkas [14]
2 years ago
8

A waiter received a $15.25 tip If the check totaled $25

Mathematics
1 answer:
Serjik [45]2 years ago
3 0
The answer is —>61%
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Provide the value of k: <br> (2x-1)(kx+1)=6x^2-x-1
guapka [62]

Answer:

k = 3

Step-by-step explanation:

Expand the left side and compare the coefficients of like terms on both sides.

(2x - 1)(kx + 1) ← expand using FOIL

= 2kx² + 2x - kx - 1

Compare the coefficients of the x² term on both sides

2k = 6 ( divide both sides by 2 )

k = 3

4 0
3 years ago
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Heyy! i’ll give brainliest please help
Elis [28]

Answer:

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7 0
3 years ago
Jamaal ran 6 miles in 30 minutes. Which expression shows how to correctly determine his speed in miles per minute?
Phantasy [73]

Answer:

Speed = 0.2 miles per minute.

Step-by-step explanation:

Given  : Jamaal ran 6 miles in 30 minutes.

To find : Which expression shows how to correctly determine his speed in miles per minute.

Solution : We have given

Distance  = 6 miles.

Times= 30 minute .

Speed = \frac{Distance}{time}.

Speed = \frac{6}{30}.

Speed = 0.2 miles per minute.

Therefore, Speed = 0.2 miles per minute.

5 0
3 years ago
What equation results from completing the squre and then factoring x^2+10=15
nlexa [21]

For this case we must complete squares:

x ^ 2 + 10x = 15

We add the square of half the coefficient of the term "x",

(\frac {b} {2a}) ^ 2 on both sides of the equation:

x^2+10x+(\frac {10} {2 (1)}) ^ 2 = 25 + 15\\x ^ 2 + 10x + 5 ^ 2 = 25 + 15

According to the perfect square trinomial we have:

(a + b) ^ 2 = a ^2 + 2ab + b ^ 2

Rewriting the expression we have:

a = x\\b = 5\\(x + 5) ^ 2 = 25 + 15\\(x + 5) ^ 2 = 40

ANswer:

(x + 5) ^ 2 = 40

6 0
3 years ago
What do you think is a real number?
ozzi

Answer:

Real numbers consist of zero (0), the positive and negative integers (-3, -1, 2, 4), and all the fractional and decimal values in between (0.4, 3.1415927, 1/2). Real numbers are divided into rational and irrational numbers.

Step-by-step explanation:

4 0
3 years ago
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