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Lady_Fox [76]
3 years ago
7

What is the smallest possible value for x when

Mathematics
1 answer:
stepan [7]3 years ago
8 0

Answer:

a

Step-by-step explanation:

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Increase £40 by 15%
matrenka [14]

Answer:

£46

Step-by-step explanation:

40 increased by 15 percent is because 15 percent of 40 is 6

adding this increase to it makes it 46 pounds

8 0
2 years ago
You decide to take your mom to a restaurant for her birthday lunch. Your bill came to $26.53. You need to leave a tip for your w
Alborosie

Answer:

$31.30 is the total bill

Step-by-step explanation:

if you multiply 26.53 by 18% you get 4.77. then when you add the 26.53 by 4.77 you would get $31.30. Your welcome (pls give brainliest)

3 0
3 years ago
At a fabric store, fabrics are sold by the yard. A dressmaker spent $36.35 on 4.25 yards of silk and cotton fabrics for a dress.
rewona [7]

Answer:

Answer:

Silk = x = 1.5 yards

Cotton = y = 2.75 yards

Step-by-step explanation:

x + y = 4.25

16.90x + 4y = 36.35

1. The solution to the equation represent number of yards of silk and number of yards of cotton bought.

2.

x + y = 4.25 (1)

16.90x + 4y = 36.35 (2)

Multiply (1) by 4

4x + 4y = 17 (3)

16.90x + 4y = 36.35 (2)

Subtract (3) from (2)

16.90x - 4x = 36.35 - 17

12.90x = 19.35

Divide both sides by 12.90

x = 19.35 / 12.90

= 1.5

x = 1.5 yards

Substitute x = 1.5 yards into (1)

x + y = 4.25

1.5 + y = 4.25

y = 4.25 - 1.5

= 2.75

y = 2.75 yards

Silk = x = 1.5 yards

Cotton = y = 2.75 yards

Step-by-step explanation:

7 0
3 years ago
Conde Nast Traveler publishes a Gold List of the top hotels all over the world. The Broadmoor Hotel in Colorado Springs contains
zaharov [31]

Answer:

(a) The probability that all the hotel's rooms will be rented is 0.1587.

(b) The probability that 50 or more rooms will not be rented is 0.2514.

Step-by-step explanation:

We are given that the Broadmoor Hotel in Colorado Springs contains 700 rooms and is on the 2004 Gold List.

Suppose Broadmoor's marketing group forecasts a mean demand of 670 rooms for the coming weekend. Assume that demand for the upcoming weekend is normally distributed with a standard deviation of 30.

Let X = <u><em>demand for rooms in the hotel</em></u>

So, X ~ Normal(\mu=670,\sigma^{2} =30^{2})

The z-score probability distribution for the normal distribution is given by;

                           Z  =  \frac{X-\mu}{\sigma}  ~ N(0,1)

where, \mu = mean demand for the rooms = 670

            \sigma = standard deviation = 30

(a) The probability that all the hotel's rooms will be rented means that the demand is at least 700 = P(X \geq 700)

          P(X \geq 700) = P( \frac{X-\mu}{\sigma} \geq \frac{700-670}{30} ) = P(Z \geq 1) = 1 - P(Z < 1)

                                                             = 1 - 0.8413 = <u>0.1587</u>

The above probability is calculated by looking at the value of x = 1 in the z table which has an area of 0.8413.

(b) The probability that 50 or more rooms will not be rented is given by = P(X \leq 650)

         P(X \leq 650) = P( \frac{X-\mu}{\sigma} \leq \frac{650-670}{30} ) = P(Z \leq -0.67) = 1 - P(Z < 0.67)

                                                             = 1 - 0.7486 = <u>0.2514</u>

The above probability is calculated by looking at the value of x = 0.67 in the z table which has an area of 0.7486.

7 0
3 years ago
The side of a square is (4x - 2y). What is the perimeter of the square?
aksik [14]
16x-8y Cause you simply add all of the x's and y's together
8 0
3 years ago
Read 2 more answers
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