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natta225 [31]
3 years ago
9

(2.8 x 10^8) / (7 × 10^2)

Mathematics
2 answers:
Zigmanuir [339]3 years ago
8 0

Answer:

7=x/5; she has earned 35 points

Step-by-step explanation:

(5)7=x/5(5)

so, you multiply each side by five, since the inverse operation of division is multiplication, then solve.

7(5)=35

x/5(5)=x

so x (the number of points she earned) is equal to 35.

raketka [301]3 years ago
4 0

Answer:

(2.8 x 10^8) / (7 × 10^2) = 400'000

Step-by-step explanation:

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(60)x = 1, what are the possible values of x? Explain your answer.
Gnesinka [82]

Answer:

\frac{1}{60}

Step-by-step explanation:

Problem:

 The possible values of x in the equation (60)x = 1;

Solution:

Such a problem like this in which the highest power of the unknown is 1 will have just one solution.

       60x  = 1

To solve this, we take the multiplicative inverse of 60;

   the multiplicative inverse of 60 = \frac{1}{60}

   Use this inverse to multiply both sides of the expression;

         \frac{1}{60} x  60x  = 1 x \frac{1}{60}

                   x  = \frac{1}{60}

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3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
Expand and simplfy (2x+1)(x+3)
Nina [5.8K]

Answer:

(2x+1)(x+3)

2x(x+3)+1(x+3)

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if you want you can also multiply 2x+3 by x+3

like this:

(2x+1)(x+3)

x(2x+1)+3(2x+1)

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They will both give you the same answer.

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If the function 5x + y = 1 has the domain {-2, 1, 6}, then what is the corresponding range?
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Answer:

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Step-by-step explanation:

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Step-by-step explanation:


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