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mojhsa [17]
3 years ago
15

Randy donated 1/6 of his savings to charity and spent the rest of gifts for 3 friends. If each friend received a gift worth $10

how much money did he donate?
Mathematics
2 answers:
Tanzania [10]3 years ago
8 0
Randy donated $6. he originally started with $36 and 5/6 of that is 30, meaning 1/6 of 36 is 6.
rosijanka [135]3 years ago
7 0
Randy donated approximately 157 dollars.
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Pls help I’m failing math I’ll brainlest ASAP
skad [1K]

The equation <u>6 + 9a = 51</u> can help find out how many adults were in the group.

5 0
3 years ago
Can you help me please ​
lora16 [44]
Cos(5/12)=65.4
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7 0
2 years ago
4
taurus [48]

Answer:

x^2 - 2x + 10, option B

Step-by-step explanation:

Complex numbers:

The most important relation that involves complex numbers is given by:

i^2 = -1

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = a(x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

In this question:

The solutions are:

x_1 = 1 - 3i, x_2 = 1 + 3i

We have to find the polynomial. All option have a = 1. So

(x - (1 - 3i))(x - (1 + 3i)) = x^2 - x(1 + 3i) - x(1 - 3i) + (1 - 3i)(1 + 3i) = x^2 - x -3ix - x + 3ix + 1^2 - (3i^2) = x^2 - 2x + 1 - 9i^2 = x^2 - 2x + 1 - 9(-1) = x^2 - 2x + 10

The correct answer is given by option b.

6 0
3 years ago
What two numbers add to equal ten and multiplies to equal negative seven?
lawyer [7]
Okay ShallBeTheLast, what we will do will involve a lot of simple plug and play kind of actions.
To start we must notice one number must be negative and the other should be positive, because the multiplied number is a negative.

Next, lets multiply number that have a sum of 10 (keep in mind one has to be negative and the other has to be positive).

-1 * 10 = -10 false
-2 * 12 = -24 false
-3 * 13 = -39 false
notice that no number working and it's only getting farther away.
There is no solution for this that involves to integers.

I think you might of wrote the question backwards.
If that is the case we would run numbers like.....
-1 * (-6) = 7 false
-2 * (-5) = 10 true!!!!

-2 and -5 would work
4 0
3 years ago
he students at Porterville Elementary sold raffle tickets, each for the same price, for a fundraiser. The equation below shows h
Juliette [100K]
T=95
solve for t by simplifying both sides of the equation then isolating the variable 
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2 years ago
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