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Leokris [45]
3 years ago
7

21 = -3c + 7 -5c -2i need help with this multi step equation question​

Mathematics
2 answers:
JulijaS [17]3 years ago
6 0
<h3>Answer:</h3>

<u>On solving equation, we get</u>

  • - 3c + 7 - 5c - 2 = 21
  • - 8c + 5 = 21
  • - 8c = 21 - 5
  • - 8c = 16
  • c = - 16/8
  • c = - 2.

<u>Hence, the value of c for given equation is - 2</u>.

belka [17]3 years ago
5 0

Answer:

c=-2

Step-by-step explanation:

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Pls help me answer this question i need it asap. This is a good offer :)
tensa zangetsu [6.8K]

<u>Answer:</u>

  • The product is 21/32.

<u>Step-by-step explanation:</u>

<u>Write the product:</u>

  • => 2 5/8 x 2/8

<u>Convert it to improper fraction:</u>

  • => 21/8 x 2/8

<u>Multiply:</u>

  • => 42/64

<u>Simplify:</u>

  • => 21/32

Hence, <u>the product is 21/32.</u>

Hoped this helped.

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The princess examines one plant and can’t seem to locate its roots. The plant is labeled as p(x)=x^2+x+3 Which values should the
AleksAgata [21]
Let's actually find the roots, using the quadratic formula:

<span>p(x)=x^2+x+3 gives us a=1, b=1 and c=3.

                 -1 plus or minus sqrt(1^2-4(1)(3))
Then x = -----------------------------------------------          
                                           2

The discriminant here is negative, so the roots x will be complex:

              -1 plus or minus sqrt(-11)      -1 plus or minus i*sqrt(11)
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8 0
3 years ago
One bar of candy A and two bars of candy B have 774 calories. Two bars of candy A and one bar of candy B contains 786 calories.
vampirchik [111]
◆ Define the variables:

Let the calorie content of Candy A = a
and the calorie content of Candy B = b

◆ Form the equations:

One bar of candy A and two bars of candy B have 774 calories. Thus:

a + 2b = 774

Two bars of candy A and one bar of candy B contains 786 calories

2a + b = 786

◆ Solve the equations:

From first equation,
a + 2b = 774
=> a = 774 - 2b

Put a in second equation
2×(774-2b) + b = 786
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=> 1548 - 4b + b = 786
=> -3b = 786 - 1548
=> -3b = -762
=> b = -762/(-3) = 254 calorie

◆ Find caloric content:

Caloric content of candy B = 254 calorie

Caloric content of candy A = a = 774 - 2b = 774 - 2×254 = 774 - 508 = 266 calorie
5 0
3 years ago
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