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timurjin [86]
2 years ago
5

Find the value of X (7x-1) (6x-1)

Mathematics
2 answers:
Aleks04 [339]2 years ago
7 0

Answer:

x=14

Step-by-step explanation:

(7x - 1)° + (6x - 1)° = 180°

(13x - 2)° = 180°

13x = 182°

x = 182°/13

x = 14

Gennadij [26K]2 years ago
6 0
I think for this the awnser should be 17 I’m not sure
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Which system of equations has the same solution as the system below?
worty [1.4K]

Answer: Both A, and C

Step-by-step explanation:

The answer to the first system of equations (2x+2y=16) would be

x=3 and y=5 ( 3x-y=4 )

Which means we have to find out which of the other equations has an x value of 3, and a y value of 5.

If A is 2x+2y=16, then x=3 and y=5

           6x-2y=8

If B is x+y=16, then x=5 and y=11

         3x-y=4

If C is 2x+2y=16, then x=3 and y=5

           6x-2y=8

If D is 6x+6y=48 , then x=-2 and y=10

            6x+2y=8

Both A and C are equal to the first system of equations, which means they are both correct answers.

8 0
3 years ago
Need help pls and thank you
Mkey [24]

Answer:

y=25x

Step-by-step explanation:

It is a linear equation with a slope of 25

5 0
2 years ago
Given Triangle DEF is isosceles and angle D is the vertex angle, Find x, DE, DF, EF
ch4aika [34]

Answer:

x=2;DE,EF=9,DF=5

Step-by-step explanation:

Since DEF is isoceles, you can set the equations

x+7 and 2x+5 equal to each other

x+7=2x+5, now solve for x

-x=-2,

x=2, now plug in for each side

DE,EF=9

DF=3(2)-1=5

4 0
3 years ago
On​ Tuesday, it snowed 15 inches in 6 hours. On​ Friday, it snowed 30 inches in 8 hours. On which day did it snow at a greater r
Viktor [21]

Answer: Friday, 1.25 more per hour

Step-by-step explanation: if we take the inches it snowed and divide it by the hours, we get the rate of snowfall for one hour. 15/6=2.5 and 30/8=3.75

To get how much more we take the bigger snowfall per hour minus the smaller snowfall per hour 3.75-2.5=1.25

6 0
2 years ago
Suppose a country's population in 1980 was 210 million. In 1990 it was 225 million.
polet [3.4K]
225/210=e^10k
1.0714285714285714285714285714286=e^10k
ln 1.0714285714285714285714285714286=ln e^10k=10k ln e=10k
k=0.00689928714869514514734197052474
P(2000)=210*e^0.00689928714869514514734197052474x20
P(2000)=241.07142 million

4 0
3 years ago
Read 2 more answers
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