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Lubov Fominskaja [6]
3 years ago
7

Choose the correct equation to solve the problem: Five friends equally split a restaurant bill that comes to $32.50. How much do

es each person pay?
x/5 = 32.50
5x = 32.50
x + 5 = 32.50
x - 5 = 32.50
Mathematics
1 answer:
Daniel [21]3 years ago
4 0
5x = 32.50. and each of them pay $6.50
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in parallelogram ABCD, AB=(6x-2) feet DC=(3x+13) feet and AD=5 feet. Find the number of feet in the perimeter of the parallelogr
sweet [91]

Answer:

66 feet

Step-by-step explanation:

Parallelograms have 2 pair of parallel sides that are congruent to each other.

In parallelogram ABCD, we can say:

AB = DC

and

BC = AD

AB and DC are given, and they are equal. So we can say:

AB = DC

6x - 2 = 3x + 13

Now we can solve for x:

6x - 2 = 3x + 13

6x - 3x = 13 + 2

3x = 15

x = 15/3

x = 5

So,

AB = 6x - 2

AB = 6(5) - 2 = 28

So, DC = 28

We are also given AD = 5, so BC = 5 as well [since AD = BC]

Now, we know the length of all 4 sides.

The perimeter is the sum of all 4 sides. Hence,

Perimeter = 28 + 28 + 5 + 5 = 66 feet

6 0
3 years ago
Simplify 9 - {x - (7 + x)}. <br><br> (a) 16 <br> (b) -2x + 2 <br> (c) -2x + 16 <br> (d) 2x + 2
Arisa [49]

Answer:

The correct answer is a) 16

Step-by-step explanation:

To find this first distribute the interior negative to both terms in the parenthesis.

9 - {x - (7 + x)}

9 - {x - 7 - x}

Now simplify the like terms.

9 - {-7}

Now distribute the negative once again.

9 + 7

And complete the indicated operation.

16

3 0
2 years ago
Read 2 more answers
An electrician charges 110 after 2 hours of work and 190 for 4 hours of work. Write a linear equation in point-slope form that r
Andrej [43]

Answer:

y = 40x + 30

Step-by-step explanation:

The equation for a linear function is given by:

y = mx + b;

where y and x are variables, m is the slope or rate of change of the function and b is the initial value of y at x = 0 (that is y intercept).

Let y represent the total cost and x represent the number of hours worked.

The electrician charges 110 after 2 hours of work and 190 for 4 hours of work.

Representing in coordinate form as (x, y) we get:

(2, 110) and (4, 190)

The equation of the function can be gotten using the formula:

y-y_1=\frac{y_2-y_1}{x_2-x_1}(x-x_1)

Therefore:

y-110=\frac{190-110}{4-2}(x-2)\\\\y-110=40(x-2)\\\\y-110=40x-80\\\\y=40x-80+110\\\\y=40x+30

6 0
2 years ago
A town has a population of 20,000 and grows at 4.5% every year how long will it be in to the population is 42,800
Iteru [2.4K]

Answer:

It will take 17 years to get a population of 42,800.  (Specifically 17.3)

Step-by-step explanation:

We will use the equation

y = population

x = amount of years

y = 20000(1 + 0.045)^x

20000 is the original population.

(1 + 0.045) is the increase of 4.5% every year

6 0
3 years ago
What is the solution of this linear system? <br> p+ q + r= 32<br> p-r= 4<br> 2p+q=36
-Dominant- [34]
R=0, q=28, p=4


Hope this helps :)
4 0
3 years ago
Read 2 more answers
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