What is the value of (-3)(5)(-4)

Mathematics

1 answer:

olasank [31]3 years ago

5 0

The answer is 60 bc -3 x -4 is 12, and 12x5 is 60

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PLZ ANSWER ASAP NEEDS CORECT ANSWER

Nataliya [291]

Answer:

10,935

Step-by-step explanation:

lvl 1: 15 x 3=45

lvl 2: 45 x 3=135

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3 years ago

Determine what number is 30% of 400.

Darya [45]

Answer:

120

Step-by-step explanation:

Is means equals and of means multiply

W = 30% * 400

Change to decimal

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3 years ago

Read 2 more answers

(2.5 x 10^9) + (5.3 x 10^8) = (2.5 + 5.3) x (10^9 x 10^8

makvit [3.9K]

Answer:

Read below.

Step-by-step explanation:

Wrong:

(2.5 x 10^9) + (5.3 x 10^8) =

(2.5 + 5.3) x (10^9 x 10^8) =

7.8 x 10^7=

7.8 x 10,000,000=

780,000,000

<u>Bold is edited by me</u>

Correct:

(2.5 x 10^9) + (5.3 x 10^8)=

(2.5 x 1,000,000,000)+(5.3 x 100,000,000)=

2,500,000,000+5,300,000,000=

7,800,000,000

The problem is that whoever wrote it swapped the numbers in the parentheses, added a pair of them together and multiplied the other pair. You are not supposed to take out the pairs and swap them if you'd like or the answer is incorrect. Second mistake is that $10^{9} * 10^{8}$ is not $10^{7}$ I do not know how and where you got that answer from.