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3 years ago

Last month, he sold 50 chickens and 30 ducks for $550. This month, he sold 44 chickens and 36 ducks for $532

Mathematics

1 answer:

valina [46]3 years ago

8 0

What are u asking to be solved

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Please help!! I’m stuck on this

beks73 [17]

Answer:

B. $x = -4\,\lor \,x = -1$

Step-by-step explanation:

Let $\sqrt{-4-5\cdot x} = x$ , we solve for $x$ by algebraic means.

1) $\sqrt{-4-5\cdot x} = x$ Given

2) $-4-5\cdot x = x^{2}$ Definition of power/Symmetry of equality

3) $x^{2}+5\cdot x + 4 = 0$ Compatibility with addition/Commutative and associative properties/Existence of additive inverse/Modulative property

4) $(x+4)\cdot (x+1) = 0$ $x^{2}+(a+b)\cdot x +a\cdot b = (x + a)\cdot (x+b)$

5) $x = -4\,\lor \,x = -1$ Result

Hence, the correct answer is B.

7 0

2 years ago

You leave a 10% tip on a $30 dinner bill. Find he amount of the tip and add it to

Korolek [52]

33 dollars. The tip is 3 dollars, and that to 30 dollar dinner bill and the whole bill will be $33.

4 0

2 years ago

Read 2 more answers

Twice a number increased my 3 times the number

Alexxandr [17]

The answer is 2n+3n.

3 0

2 years ago

The area of a rectangular prism is 51 square feet. The base is 6 feet. What is it's height?

horsena [70]

The height is ~1.42 sqr ft

4 0

3 years ago

Please help me for 3, 4, and 5 please

almond37 [142]

Answer:

Step-by-step explanation:

3: Possible outcomes for a coin flip; heads tails

Total possible outcomes for two coin flips 2*2=4

Out the 4 possible outcomes only 1 of them both times it land on heads

1/4

4: and 5 i dont know

3 0

3 years ago