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2 years ago

10

Chocolates costing $8 per pound are to be mixed with chocolates costing $3 per pound to make a 20-pound mixture. If the mixture

is to sell for $5 per pound, how many pounds of the $3 chocolate should be used?
10
8
12

If u know, please help :(

1 answer:

lorasvet [3.4K]2 years ago

4 0

Answer:

8 is the correct answer i think I'm not really sure

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Which of the sets of ordered pairs represents a function?

alexandr1967 [171]

Answer:

The correct option is 4. Neither A nor B represents a function.

Step-by-step explanation:

The given sets of ordered pairs are

$A=\{(1,-5), (8,-5), (8,7), (2,9)\}$

$B=\{(7,-4), (7,-2), (6,-3), (-9,5)\}$

A set of ordered pairs represents a function if there exist unique outputs for all inputs. It means for each values of x there exist, a unique value of y.

In set A the value of y-coordinates are -5 and 7 at $x=8$ .

At x=8, there exist more than one value of y, so the set A is not a function.

In set B the value of y-coordinates are -4 and -2 at $x=7$ .

At x=7, there exist more than one value of y, so the set B is not a function.

Therefore neither A nor B represents a function and option 4 is correct.

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3 years ago

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Dallas was told to study 4 hours a week by his mother. Dallas studied

vfiekz [6]

Answer:

16 hours

Step-by-step explanation:

14 hours + 1 hour + 1 hour = 16 hours

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2 years ago

PLEASE ANSWER ASAP! YOUR ANSWER MUST REQUIRE AN EXPLANATION IN ORDER TO RECEIVE 10 POINTS AND THE BRAINLIEST ANSWER!!! THANKS!!!

KIM [24]

Hello,

Using vectors and scalar product:

$[(a+c)*\vec{i}+(b-0)*\vec{j} ].[(a-c)*\vec{i}+(b-0)*\vec{j}]=0$
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$\dfrac{b^2}{(a+c)(a-c)}=1$

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Answer A

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2 years ago

The circumference of a circular garden is 138.16 feet. What is the radius of the garden? Use 3.14 for it and do not round your a

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11 feet

Step-by-step explanation:

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2 years ago

Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

fenix001 [56]

Answer:

x^6y^3

Step-by-step explanation:

<u>Given polynomial:</u>

8x^6y^5 - 3x^8y^3

<u>Get prime factors:</u>

2*2*2*x*x*x*x*x*x*y*y*y*y*y - 3*x*x*x*x*x*x*x*x*y*y*y

<u>Common factors of the two terms:</u>

x*x*x*x*x*x*y*y*y = x^6y^3

<u>So</u>

x^6y^3(8y^2 - 3x^2)

x^6y^3 is the GCF of this polynomial

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2 years ago