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3 years ago

PLEASE HELP ME WITH THIS QUESTION IM BAD AT MATH!!! (2.41 x 10^{3}) + (3.58 x 10^{4}) = ? Write the sum in scientific notation.

1 answer:

7 0

You can say:
(241/100 × 10^3) + (358/100 × 10^4) ⇒(241/10^2×10^3)+(358/10^2 ×10^4) ⇒ (241 × 10) + (358 × 10^2) ⇒ 2410 + 35800= 38210 :))
i hope this is helpful
have a nice day

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Answer:

Yes, they are equivalent.

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3 years ago

Equivalent expression to 3(4m-2)-2(m+5

wolverine [178]

Answer:

10m - 16

Step-by-step explanation:

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3 years ago

A jar has 20 marbles: 3 green, 12 blue, 5 red.

nadezda [96]

Probability is defined as the likelihood or the certainty that an event is going to occur or happen.

The probability of randomly choosing a red and then a green marble is $3/76$ .

The total number of marbles = 20

The number of green marbles= 3

The number of blue marbles = 12

The number of red marbles = 5

The probability of choosing a red marble = Number of red marbles / Total number of marbles

= 5/20

In simplest fraction form = $\frac{1}{4}$

We are told in the question that you keep the red marble you choose, So this means the total number of marbles left reduces to 19

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= 3/19

Therefore, the probability of randomly choosing a red and then a green marble is

P (Red) x P(Green)

= 1/4 x 3/19

= $3/76$

To learn more, visit the link below:

brainly.com/question/22563776

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2 years ago

A machinist can produce 12 parts in 40 min.how many parts can the machinist produce in 4 hours?

expeople1 [14]

Answer:

72 parts

Steps:

Convert the 4 hours into minutes. There are 60 minutes in an hour. Therefore, 4 hours = 240 minutes.

Divide 240 minutes by 40 minutes. This equals 6. Therefore, the machinist can produce the 12 parts 6 times in 4 hours.

Finally, multiply the 12 parts by the 6 times he can produce. Therefore, the machinist can produce 72 parts in 4 hours.

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3 years ago

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The sum of the digits of a certain two-digit number is 7. Reversing its digits increase the number by 9. What is the number?

Elis [28]

Let the two numbers be x and y.

According to your question;

x + y = 7
10y + x = 10x + y + 9

By equation 1 ; x = 7-y

Substituting the value of x ;

10y + ( 7 -y) = 10(7-y) + y + 9

9y + 7 = 70 -10y + y + 9

9y + 7 = 70 - 9y + 9

=> 18y = 70 -7 + 9
=> 18y = 72
=> y = 4

Substituting for x ;

x = 7 - y
=> x = 7 -4
=> x = 3

Thus, x = 3 and y = 4;
=> The number is 34.

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3 years ago

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