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Nuetrik [128]
4 years ago
9

Assign two variables for each problem, and write the equations. Do not solve.

Mathematics
1 answer:
Mandarinka [93]4 years ago
3 0
Variables: c for chicken
h for burgers

Equations:
1.      5c + 7h=24.90
2.      5c + 9h=28.80
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wanda works as an electrician with the current electric company. she earns $17.25 per hour with time and a half after 40 hours.
OLEGan [10]
1.5(17.25) = 25.88 --- this is ur overtime pay per hr

17.25(40) + 25.88(4) = 690 + 103.52 = 793.52...nice weekly pay :)
8 0
4 years ago
If you wanted to shift the graph of y = 2x + 5 up, which equation could you use?
maxonik [38]

Answer:

y = 2x + 5+2 graph would shift by 2 unit.

Step-by-step explanation:

Given  : y = 2x + 5 .

To find :If you wanted to shift the graph up what would be equation .

Solution : We have given that y = 2x + 5 .

BY the transformation rule ; if f(x) +k then graph would shift up by k units .

Then to shift the graph of y = 2x + 5 up we need to add something in 5

Like   y = 2x + 5+2

Then graph would shift by 2 unit.

Therefore,   y = 2x + 5+2 graph would shift by 2 unit.

3 0
4 years ago
Read 2 more answers
Sam travel 20 miles in three hours. Sam walked part of the distance at a speed of 4 mph. Sam rode his bicycle for the remaining
enot [183]

Answer:

Sam sokey 0.5 hours biking and 3.5 hours walking

Step-by-step explanation:

Here, we want to know the number of hours spent walking and biking

Mathematically; distance = speed * time

Let the number of hours spent walking be x and the number of hours spent biking be y

Mathematically;

x + y = 3 •••(i)

distance spent walking = 4 * x = 4x miles

distance spent biking = 12 * y = 12y miles

4x + 12y = 20

divide through by 2

2x + 6y = 10 ••••••(ii)

From i , x = 4-y

Substitute this into ii

2(4-y) + 6y = 10

8 - 2y + 6y = 10

8 + 4y = 10

4y = 10-8

4y = 2

y = 2/4 = 0.5 hours

The number of hours spent walking = 4-0.5 = 3.5 hours

8 0
4 years ago
Farmer Ed has 550 meters of fencing, and wants to enclose a rectangular plot that borders on a river. If Farmer Ed does not fenc
ss7ja [257]
Let width of the rectangular plot be x meters

then total of widths = 2x 
and the length would be (550 - 2x) meters.

so the area = x(550 - 2x)  = 550x - 2x^2

to find the maximum are find the derivative and equate to zero:-

f'(x) =  550 - 4x = 0
x = 550/4 =  137.5 meters = width

length = 550 - 2(137.5) = 275

Maximum area  is when width = 137.5m and length = 275m

5 0
3 years ago
What is the value of x in this triangle?
dimulka [17.4K]
For this case we can use the following trigonometric relationship to solve the problem:
 sin(x)= \frac{C.O}{h}
 Where,
 C.O: opposite leg
 h: hypotenuse
 Substituting values we have:
 sin(x)= \frac{32}{58}
 Clearing x we have:
 x = arcsin(\frac{32}{58})
 Making the corresponding calculations we have:
 x = 33.49
 Answer:
 
The value of x is given by:
 
x = 33.49
6 0
4 years ago
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