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poizon [28]
2 years ago
8

Write an equation and solve

Mathematics
2 answers:
Lena [83]2 years ago
5 0

Answer:

Step-by-step explanation:

  • b = cost of 1 burger
  • f = cost of fries
  • $1 = the cost of fries

2(b+f) = 10

2b + 2f = 10

2b + 2(1) = 10

2b + 2 = 10

     - 2    - 2

2b = 8

/2     /2

b = $4 <== the cost of each burger

Check your answer:

2(b+f) = 10

2(4+1) = 10

8 + 2 = 10

10 = 10

This statement is correct

Hope this helps!

erma4kov [3.2K]2 years ago
3 0
10 divided by 2 minus 1 equals 4
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Answer:

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3 years ago
Find the discriminant of x²+6x+9=0 ​
Rainbow [258]

Answer:

x²+6x+9=0

x²+3x+3x+9=0

x(x+3)+3(x+3)=0

(x+3)(x+3)=0

either

x+3=0

x=-3

or

x+3=0

x=-3

Step-by-step explanation:

next method

x²+6x+9=0

x²+2×x×3+3²=0

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(x+3)²=0

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8 0
2 years ago
Please help me with this problem​
eimsori [14]

Find the equation of the first line using the two given points: (1,-1) (-1,-5)

Slope = change in Y over change in x:

Slope = (-5-(-1)) / (-1-(1) = -4/-2 = 2

Now find y intercept: y - y1 = m(x-x1) = y -(-1) = 2(x-1)

Simplify to get y = 2x-3

Now a perpendicular line has a opposite reciprocal slope.

The perpendicular line would be y = -1/2x - 3

You are told the y intercept is -4 units greater, so add -4 to -3 to get -7

The answer would be A. y = -1/2x-7

6 0
3 years ago
#5
Colt1911 [192]

Answer:

1.5 seconds

Step-by-step explanation:

i took a test with the same question

6 0
2 years ago
Read 2 more answers
5. A right triangle has a hypotenuse that is 13 cm and a leg that is 4 cm.
kompoz [17]

Answer:

ok so square 13 cm, and square 4 cm. then you will add those together then take that number and find the square root  plz mark brainliest

3 0
2 years ago
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