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ss7ja [257]
2 years ago
11

Sara and 3 of her friends went to lunch one day. Each person paid for her own lunch, but they agreed to split the tip. If the ti

p amount was 15% of the total, and the 4 lunches totaled to $60, what was the portion of each person’s tip amount?
Mathematics
1 answer:
Slav-nsk [51]2 years ago
8 0

Answer: well the answer is 9

Step-by-step explanation:

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What is the y intercept of (-4,6) and (1,-9)​
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Answer:

what is the y intercept of (-4,6) and (1,-9)​ : (3,-12)

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A power company calculates a person's monthly bill from the number of kilowatt-hours (kWh), x, used. The function b(x) = { 0.150
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What would be the first step to solve for n in the equation 3n-7=30?
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4 0
2 years ago
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Factor the polynomial
Anettt [7]

Answer:

(3x + 5)(9x^2 - 15x + 25)

Step-by-step explanation:

27x^3 + 125

= (3x)^3 + 5^3

= (3x + 5) ((3x)^2 - (3x)(5) + 5^2)

= (3x + 5)(9x^2 - 15x + 25)

FYI: a³ + b³ = (a + b)(a² – ab + b²)

8 0
1 year ago
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How do i find the area between the two curves
viktelen [127]
A=22/10

A=integral(a,b) [f(x)-g(x)]dx

Since the function is even (the function is mirrored over the y axis) we can evaluate the integral from 0 to 1 and then multiply our answer by 2 since we have the same area on each side of the y axis.

We get A=2*int.(0, 1)[(x^2)-(-2x^4)]dx

Now we can integrate by term.

2*[int.(0, 1)[x^2]dx+int(0, 1)[2x^4]dx]

Now factor out constants.

2*[int(0,1)[x^2]dx+2int(0,1)[x^4]dx]

Now integrate.

2*[(x^3/3)|(0,1) + 2*(x^5/5)|(0,1)]

Now solve.

2*[(1/3)+2*(1/5)]

=22/10

Hope you can decipher what I wrote!
4 0
3 years ago
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