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Elina [12.6K]
4 years ago
9

What is a 20% tip of $30

Mathematics
2 answers:
ser-zykov [4K]4 years ago
5 0
$6!
10% is $3, you just move the decimal to the left one space, and that's 10%, so double is $6
Likurg_2 [28]4 years ago
3 0
$6
because 20% turns into .2 and you multiply .2*30
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the length and width of a rectangle are consecutive even integers. the area of the rectangle is 80 square units. what are the le
nadya68 [22]
X(x + 2) = 120sq units 

<span>Set it equal to 0 </span>
<span>x^2 + 2x - 120 = 0 </span>

<span>factor </span>
<span>(x + 12)(x - 10) </span>

<span>For the shorter side: </span>
<span>x - 10 = 0 </span>
<span>x = 10 </span>

<span>Now that you have x, solve for the longer side which we said was represented by </span>
<span>x + 2 </span>
<span>10 + 2 = 12 </span>

<span>Proof </span>
<span>A = L x W </span>
<span>120 = 10 x 12 </span>
<span>120 = 120 </span>
<span>true </span>

<span>Our length is 12 and our width is 10</span>
7 0
3 years ago
Find the value of x<br><br> 3(x-4)
antoniya [11.8K]
3x-12 is simplified from parenthesis
7 0
3 years ago
Calculate the area of the irregular polygon shown below:
MAXImum [283]
That's the diagram..
(12×3) + 3(0.67×7) = 50.07inches²
≈ 50inches²

hope this helps
make it the brainliest if it's correct....

5 0
3 years ago
What are the zeros of f(x) = x^2 + x - 20?
kvv77 [185]
X² + x - 20
= (x+5)(x-4)

x + 5 = 0
x = -5

x - 4 = 0
x = 4

hence the answer is C
3 0
3 years ago
Could you help me quick!?
anastassius [24]

Answer:

1: 5                       2: -70.98  3: C   4:A.     5:A

Step-by-step explanation:

4 0
3 years ago
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