MATHEMATICS HIGH SCHOOL

The sale price of shrimp at a local grocery store is $1.15 for the first ounce and $0.95 for each additional ounce. Which function rule shows how the cost of shrimp, y, depends on the number of ounces, x?A - y = 1.15x + 0.95
B - y = (0.95 + 1.15)x
C - y = 0.95x + 1.15
D - y = 0.95(x - 1) + 1.15

Answers

Answer 1
Answer: option A. y = 1.15 + 0.95x

1.15 is a fixed cost and 0.95 is a variable cost that has to be multiplied by the number of ounces of shrimp, x.

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I need some help with this problem​
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3x+4y=17 solve for y.

Answers

3x+4y=17\ \ \ /-3x\n\n4y=17-3x\ \ \ \ /:4\n\ny=(17-3x)/(4)\n\ny=4.25-0.75x
Isolate "y":

3x+4y=17\n \n 4y=17-3x\n \n \boxed{y=(17-3x)/(4)}

The difference of six times a number and 7 is -49

Answers

If you would like to find the number, you can calculate this using the following steps:

n = ? ... a number

the difference of six times a number and 7 is -49
6 * n - 7 = - 49
6 * n = - 49 + 7
6 * n = - 42
n = - 42 / 6
n = - 7

The correct result would be - 7.

What is the value of the expression |x| + |y + z| when x = –6, y = –3, and z = –5?

Answers

Hi

|-6|+|-3+-5|

|-6|+|-3-5|

6+|-8|

6+8

= 14


I hope that's help !

Please I need step by step solution.​

Answers

Answer:

  A)  2C

Step-by-step explanation:

The relevant rule of logarithms is ...

  log(x²) = 2·log(x)

__

We know that 64 = 8². So, ...

  log(64) = log(8²) = 2·log(8)

We are given that log(8) = C, so 2·log(8) = 2C

__

Here, all logarithms are to the base 9. That does not change the relations shown.

A number is chosen at random from the positive, even integers from 2 to 50. Find the probability that the number chosen is divisible by 5 or 8. 1/25

2/5

11/25

Answers

There are 25 even integers between 2 and 50 (2,4,6,...,50).
Among them, there are 5 numbers divisible by 5 (10,20,30,40,50), 6 divisible by 8 (8,16,24,32,40,48), and 1 divisible by 5 and 8 simultaneously (40).

The last means these two events are not mutually exclusive. So, if

A - the event of choosing a number divisible by 5,
B - the event of choosing a number divisible by 8,

the probability of choosing a number divisible by 5 or 8 is equal to
P(A\cup B)=P(A)+P(B)-P(A\cap B)

So,
P(A\cup B)=(5)/(25)+(6)/(25)-(1)/(25)\nP(A\cup B)=(10)/(25)\n\boxed{P(A\cup B)=(2)/(5)}

84 of %300. i somehow got 24 but the answer was something like 252, i dont really get how. can you help?

Answers

Answer:

252

Step-by-step explanation:

Of means multiply

84 % * 300

Change to decimal form

.84 * 300

252

Step-by-step explanation:

You need to set up a proportion. Percents always over percents, so our first fraction would be (84)/(100), which just means that out of 100%, we are given 84. We need to find a variable to solve for: x. We need to find the number that is 84% of 300, which means that 300 is 100%. Knowing this, it would be in the denominator, since both 100 and 300 are 100% of something. This would give us the fraction (84)/(100) = (x)/(300). I like to use the cross-multiply method, which just means you multiply by a diagonal and then divide by what's left. This would give us 300 x 84 = 25,200/100 = 252. Hope this helps!
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