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Andreyy89
3 years ago
13

Find x and y please

Mathematics
2 answers:
Talja [164]3 years ago
8 0
Y is about 110 and x about 30-35

Montano1993 [528]3 years ago
3 0
Y=75, x=134, because opposite angles should be 180 degrees when added together (In the case of 4 sided shapes). 
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Hey, Y'all. Was wonderin' bout this pesky question that got me a bit stumped. Thank ya for your help.
puteri [66]
Answer: Choice B) (24,10)

---------------------------------------------------------

Work Shown:

2x - 4y = 8
2( x ) - 4y = 8
2( 3y-6 ) - 4y = 8 ... notice x has been replaced with 3y-6
2(3y)+2(-6) - 4y = 8
6y-12 - 4y = 8
2y-12 = 8
2y-12+12 = 8+12 ... add 12 to both sides
2y = 20
2y/2 = 20/2 ... divide both sides by 2
y = 10

If y = 10, then
x = 3y-6
x = 3*10-6 ... replace y with 10
x = 30-6
x = 24

Put together, the solution is (x,y) = (24,10)
which is why the answer is choice B

As a check, we can plug (x,y) = (24,10) into each equation
x = 3y-6
24 = 3*10 - 6
24 = 30 - 6
24 = 24 ... true equation
and similarly for the second equation as well
2x-4y = 8
2*24 - 4*10 = 8
48 - 40 = 8
8 = 8 ... true equation
Both equations are true when (x,y) = (24,10) so the solution is confirmed
4 0
3 years ago
Please help!!!!
vfiekz [6]
I solved this problem by setting 240/80 equal to x/100 . Once you set them equal to each other, multiply 240 and 100 and divide the product by 80 and you get 300.
3 0
3 years ago
Jessie runs 8 yards every 2 seconds. How many feet does Jessie run in 10 seconds?
serg [7]

Answer:

40 yard

Step-by-step explanation:

8 0
2 years ago
Read 2 more answers
For the function f(t) =Pe^rt , if P= 7 and r= 0.07 then what is the value of f(7) to the nearest tenth?
White raven [17]

Answer:

A. 11.4  

Step-by-step explanation:

f(t) = P e^{rt}

Data:

P = 7

r = 0.07

Calculation:

\begin{array}{rcl}f(t) & = &Pe^{rt}\\f(7)& = & 7 e^{(0.07 \times 7)}\\ & = & 7 e^{0.49}\\& \approx & 7 \times 1.632\\ & \approx & \mathbf{11.4}\\\end{array}

8 0
3 years ago
Read 2 more answers
Defiantly need help with this one please HELP AND EXPLAIN
slega [8]
12 miles in 48 minutes
12/48 or 1/4 miles per minute
Times 60 is 15 miles per hour
7 0
3 years ago
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