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3 years ago

13

Evaluate integers, rational number and irrational numbera) (-1)

1 answer:

gulaghasi [49]3 years ago

4 0

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Marcela is registering for her college classes, which cost $105 per unit. How many units can she take to have a maximum cost of

OverLord2011 [107]

Answer:

Marcela can take up to 13 units.

Step-by-step explanation:

In order to find the number of units that Marcela can take for her college classes, we can set up an inequality and solve for the variable. Since each unit costs $105, we can say that 105u ≤ 1365 where u = the number of units. The number of units multiplied by the cost per unit, must be less than or equal to $1,365. In order to solve for 'u', we can use inverse (opposite) operations and get rid of the coefficient by dividing both sides of the inequality by 105. 1365÷105 = 13. So, the number of units that Marcela can take must be less than or equal to 13 units.

6 0

2 years ago

Read 2 more answers

What Is the percent chance that a person was a male given that they lived

alex41 [277]

Answer:

23.3%

Step-by-step explanation:

this is the estimated life expectancy of a male person to live to one hundred

4 0

2 years ago

A rectangle initially has width 7 meters and length 10 meters and is expanding so that the area increases at a rate of 8 square

Tems11 [23]

Answer:

The length of rectangular is increasing at a rate 0.5714 meters per hour.

Step-by-step explanation:

We are given the following in the question:

Initial dimensions of rectangular box:

Length,l = 10 m

Width,w = 7 m

$\dfrac{dA}{dt} = 8\text{ square meters per hour}\\\\\dfrac{dw}{dt} = 40\text{ centimeters per hour} =0.4\text{ meters per hour}$

We have to find the rate of increase of length.

Area of rectangle =

$A = l\times w$

Differentiating we get,

$\displaystyle\frac{dA}{dt} = \frac{dl}{dt}w + \frac{dw}{dt}l$

Putting values, we get,

$8 = \dfrac{dl}{dt}(7) + (0.4)(10)\\\\\dfrac{dl}{dt}(7) = 8 -4\\\\\dfrac{dl}{dt} \approx 0.5714$

Thus, the length of rectangular is increasing at a rate 0.5714 meters per hour.

5 0

2 years ago

For each of the solutions of the equations find two consecutive integers between which the solution is located.

adoni [48]

Using squares of integers numbers, it is found that the solution of the equation is located between the integers x = 1 and x = 2.

The equation given is:

$x^2 = 3$

The solution of the equation given is:

$x = \sqrt{3}$

The squares of the integers numbers until the square root of 3 are:

$1^2 = 1$

$2^2 = 4$

Since $1 < 3 < 4$ , the square root of 3, which is the solution to the equation, is located between the integers x = 1 and x = 2.

A similar problem is given at brainly.com/question/3729492

4 0

2 years ago

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Find the missing number.<br> 19582 = 19000 +_+3

Kitty [74]

Pancakes 7 it’s 7 pancakes

3 0

2 years ago