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soldi70 [24.7K]
2 years ago
7

You have the choice of logging on at one of two Internet cafés. Their posted rates are as follows:

Mathematics
2 answers:
rewona [7]2 years ago
8 0

Answer:

Choice D

Step-by-step explanation:

Log-On-0.25x55+6.25=$20

ECafe-0.20x55+7.00=$18

ECafe saves $2

Virty [35]2 years ago
4 0

Answer:

D.) eCafé, the equation is C = $0.20M + $7.00, and I'll save $2.00

Step-by-step explanation:

Log-On Café: $6.25 plus $0.25 for every minute online

c = 6.25 + .25m

cost for 55 minutes

c = 6.25 + .25 (55)

c = 6.25 + 13.75

c = 20.00


eCafé: $7.00 plus $0.20 for every minute online

c = 7 + .2m

cost for 55 minutes

c = 7 + .2 (55)

c =7+11

c = 18


The e cafe is less expensive  (20-18)  by 2 dollars

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The graph of 15x + 7y = 15 is shown on the grid. Which ordered pair is in the solution set of 15x + 7y ≥ 15?
elena55 [62]

Answer:

The correct option is c.

Step-by-step explanation:

The given equation is

15x+7y=15

The given inequality is

15x+7y\geq 15

A point will contained in solution set if the above inequality satisfied by that point.

Check the point (0,-3),

15(0)+7(-3)\geq 15

-21\geq 15

This statement is false, therefore option a is incorrect.

Check the point (-3,0),

15(-3)+7(0)\geq 15

-45\geq 15

This statement is false, therefore option b is incorrect.

Check the point (3,3),

15(3)+7(3)\geq 15

66\geq 15

This statement is true, therefore option c is correct.

Check the point (-3,-3),

15(-3)+7(-3)\geq 15

-66\geq 15

This statement is false, therefore option d is incorrect.

7 0
3 years ago
150 miles in 6 gallons in unit rates
vazorg [7]

Answer:

1g/25m

Step-by-step explanation:

divide both of them by 6 so one of them can be one

Please give me Brainliest

8 0
3 years ago
HELP SUPER EASY HELP HELP GELP GELP HELP WHAT IS THE ANSEER
Zepler [3.9K]

Answer:

8.9%

Step-by-step explanation:

7 0
3 years ago
Find the values of a and b such that x2 - 2x + 2 = (x -a) + b LOADS OF POINTS ON THE LINE!!!
Hitman42 [59]

Answer:

Step-by-step explanation:

Factorize using square root method.

x² - 2x + 2 = (x-a)² + b

x² -2x + 1 + 1 = (x-a)²+b

(x² - 2*x*1 + 1²) + 1 = (x -a)²+ b       {Compare with a²- 2ab+b² which is (a - b)²}

(x - 1)² + 1 = (x - a)² + b

a = 1 and b = 1

6 0
2 years ago
The table gives the relative frequencies of recipes that contains sugar and salt, contain at least one of those ingredients, or
tigry1 [53]

<u>Answer-</u>

<em>The probability that a randomly selected recipe does not contain sugar, given that it contains salt is 22.4%</em>

<u>Solution-</u>

The given table in the link shows the relative frequencies of recipes that contains sugar and salt, or contains at least one of those ingredients, or contains neither of those ingredients.

We have to find the conditional probability that the recipe doesn't contain sugar, given that it contains salt.

We know that, the conditional probability of occurrence of A given that B occurs is,

P(A|B)=\frac{P(A\ and\ B)}{P(B)} =\frac{P(A\bigcap B)}{P(B)}

P(\text{Doesn't contain sugar}\ |\ \text{Contains salt})=\frac{P(\text{Doesn't contain sugar}\ and\ \text{Contains salt})}{P(\text{Contains salt})}


P(\text{Doesn't contain sugar}\ and\ \text{Contains salt})=\frac{0.15}{1} =0.15\\P(\text{Contains salt})=\frac{0.67}{1}=0.67

Putting these values,

P(\text{Doesn't contain sugar}\ |\ \text{Contains salt})=\frac{0.15}{0.67} =0.224=22.4\%

5 0
3 years ago
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