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Contact [7]
2 years ago
9

I need this quick. Solve -40x+68= -2 and .65x + 23= -1 using Elimination method

Mathematics
1 answer:
Paul [167]2 years ago
4 0

Step-by-step explanation:

hope it is helpful to you

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Dexter was asked to mix the punch for his sister’s birthday party. He has to figure out how much water and pure concentrate to a
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Answer:

  6 liters

Step-by-step explanation:

Let x represent the amount of pure concentrate used to make the punch. Then the total amount of concentrate in the punch is ...

 0.20·10 +1.00x = 0.50(10+x)

  x +2 = 0.5x +5 . . . . . eliminate parentheses

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6 liters of pure concentrate must be added to make a 50% punch.

5 0
2 years ago
In a right triangle, a and b are the lengths of the legs and c is the length of the hypotenuse. if a=7 feet and b=7 feet, what i
V125BC [204]

The length of hypotenuse when the value of legs of a right angled triangle are 7 and 7 feet is 9.9 feet.

Given that a and b are legs and c is the hypotenuse. length of legs of a right angled triangle  are 7 feet and 7 feet.

We have to find the value of c in the right angled triangle.

In this we have to apply pythagoras theorem because it says tat the square of hypotenuse is equal to the sum of squares of base and perpendicular of that right angled triangle.

H^{2} =P^{2} +B^{2}

H=c

P=7 feet

B=7 feet.

Put the values in the above rule:

c^{2} =7^{2} +7^{2}

c^{2}=49+49

c^{2}=98

c=9.899

After rounding off to nearest tenth we will get c=9.9.

Hence the value of c is 9.9 which is the length of hypotenuse.

Learn more about pythagoras theorem at brainly.com/question/343682

#SPJ4

4 0
2 years ago
An equation that has the form
ioda

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Step-by-step explanation:

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3 years ago
Express x-1y-2/z-3 with positive exponents.
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x^-1y^-2/z^-3

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