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3 years ago

Joe created a video that was originally 77 minutes long. He ended up cutting is by 15%. How long was his video after he cut it?

Mathematics

2 answers:

PSYCHO15rus [73]3 years ago

5 0

Answer:

65.45

Step-by-step explanation:

because I did the question

OLga [1]3 years ago

4 0

Answer:

65.45 minutes

Step-by-step explanation:

First you have to turn 15% into a decimal. 15% as a decimal is 0.15. Then, you have to multiply 77 and 0.15 which gives you 11.55. Lastly, you subtract 11.55 from 77. This gives you your answer: 65.45 minutes.

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3 years ago

X/2 + 3/2 < 5/2 give solution

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3 years ago

Write the equation x² + 6x + y² – 8y = 19 in standard form.

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Answer:

Formula used :

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8 0

2 years ago

Read 2 more answers

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MaRussiya [10]

D - 621 is the answer

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3 years ago

John and Emily are brother and sister. John has as many brothers as sisters, and Emily has twice as many brothers as sisters. Ho

spin [16.1K]

Answer:

4 boys, 3 girls

Step-by-step explanation:

brothers of John ⇒ x

sisters of John ⇒ y

John has as many brothers as sisters:

x = y

brothers of Emily ⇒ x + 1 (Emily have the same amount of brother as John, plus one (John))

sisters of Emily ⇒ y -1 (Emily have the same amount of sister as John, minus one (herself))

Emily has twice as many brothers as sisters:

2 (y-1) = x+ 1

Now we have a system of 2 equations and 2 variables

x=y (I)

2y - 2 = x + 1 (II)

____________

Replace x in equation II

2y - 2 = y + 1

2y - y = 2 + 1

y = 3

____________

Replace y in equation I

x = y = 3

That mean that John have 3 brothers plus himself, there is 4 boys in the family and John have 3 sister, so there is 3 girls in the family

8 0

3 years ago