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Fittoniya [83]
3 years ago
5

Write the proportion and solve:

Mathematics
2 answers:
masya89 [10]3 years ago
8 0

Answer:

810 minutes

13 hours 30 minutes

Step-by-step explanation:

Let the unknown value be x

5\:miles = 45 \: minutes\\90\:miles = x\:minutes

Sole the proportion for x ; Cross Multiply

5\times \:x =90 \times 45\\\\5x\: = 4050

Divide both sides of the equation by 5

\frac{5x}{5} = \frac{4050}{5} \\\\x = 810 \:minutes =\\13 \:hours \:30\:minutes

Crazy boy [7]3 years ago
7 0

Answer:

810 minutes

Step-by-step explanation:

90÷5=18

18×45=810

It will take him 810 mins.

I hope this helped!!

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SSSSS [86.1K]

Answer:

1. 5b-3

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4 0
2 years ago
x+4y=17 and -x-6y=-23 what's the x and y I really badly need this I need this so I can play at my basketball game tommorw and I
loris [4]

<u>Answer:</u>

  • x = 5
  • y = 3

<u>Solution:</u>

  • => x + 4y = 17

            -x - 6y = -23

  • => -2y = -6
  • => y = 3

<u>Now, let's substitute the value of y into the first equation.</u>

  • x + 4y = 17
  • => x + 4(3) = 17
  • => x + 12 = 17
  • => x = 5

<u>Let's check our answer to make sure it is correct.</u>

<u>Check:</u>

  • -x - 6y = -23
  • => -(5) - 6(3) = -23
  • => -5 - 18 = -23
  • => -23 = -23

Hence, this is proven correct.

Hoped this helped.

BrainiacUser1357

7 0
2 years ago
HELP, IT'S URGENT SO PLEASE REPLY QUICKLY!
ehidna [41]

b.  39.74

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3 years ago
You are attending a college night. There is a different school in each classroom. Of the schools in attendance 30% had a sports
elixir [45]

Answer:

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Step-by-step explanation:

Technically it's 0.12 but I only say this because they rounded by from 58 to 60 in their question

7 0
2 years ago
Find value of x for 7(3x+4)+2=156
mr_godi [17]
21x + 28 = 156 - 2
21x = 154 - 28
21x/21 = 126/21
X = 6
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3 years ago
Read 2 more answers
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