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4 years ago

13

The outside temperature at 6:00 a.m. one day was -2.4 °c. the temp dropped 0.8 °c each hour for the next 4 hours. what was the t

emp outside after the 4 hours?
answer: -5.6

1 answer:

AnnyKZ [126]4 years ago

8 0

Answer:

4 hours × 0.8°C = 3.2°C

temperature after 4 hours

= -2.4°C - 3.2°C

= -5.6°C

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A stack of 500 pieces of paper is 1.015 inches tall. What is an appropriate estimate for the thickness of each piece of paper?

Vinvika [58]

Answer: 0.002 inches

Step-by-step explanation:

A stack of 500 pieces of paper is 1.015 inches tall. The appropriate estimate for the thickness of each piece of paper would be gotten by dividing 1.015 by 500. This will be:

= 1.015 / 500

= 0.00203

= 0.002 inches

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3 years ago

SOLVE THE PROBLEM, PLEASE! :(

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Step-by-step explanation:

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3 years ago

The length of each side of a square is

shepuryov [24]

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4 years ago

How would you solve 3x-4=9x-21

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3 years ago

Read 2 more answers

BlackZzzverrR [31]

Correct Question:

Stan ran $4\frac{7}{10}$ miles, which was $1\frac{3}{10}$ fewer miles than Matt ran. Four students wrote and solved equations to find m, the number of miles that Matt ran. Which student wrote and solved the equation correctly?

Molly’s work:

$M + 1\frac{3}{10} = 4\frac{7}{10}; M = 5\frac{10}{10} = 6.$

Emma’s work:

$M - 1\frac{3}{10} = 4\frac{7}{10}; M = 3\frac{10}{10} = 4$

Alysa’s work:

$M + 1\frac{3}{10} = 4\frac{7}{10}; M = 3\frac{4}{10} =$ 3 and two-fifths

Maddie’s work:

$M - 1\frac{3}{10} = 4\frac{7}{10}; M = 5\frac{10}{10} = 6$

Answer:

Molly's Work is correct

$M + 1\frac{3}{10} = 4\frac{7}{10}; M = 5\frac{10}{10} = 6.$

Step-by-step explanation:

Let S represent distance covered by Stan and M represent the distance covered by Matt;

Given that the distance covered by Stan is $4\frac{7}{10}$ miles and it is $1\frac{3}{10}$ miles less than that covered by Matt;

This can be represented mathematically as

$S = M - 1\frac{3}{10}$

By substituting $4\frac{7}{10}$ for S;

This gives

$4\frac{7}{10} = M - 1\frac{3}{10}$

By collecting like terms

$4\frac{7}{10} = M - 1\frac{3}{10}$ becomes

$4\frac{7}{10} + 1\frac{3}{10} = M$

Reorder

$M = 4\frac{7}{10} + 1\frac{3}{10}$ ---- This is the correct equation

Solving further to get the distance covered by Matt;

Split fraction

$M = 4 + \frac{7}{10} + 1 + \frac{3}{10}$

Collect like terms

$M = 4 + 1 + \frac{7}{10} + \frac{3}{10}$

$M = 5 + \frac{7}{10} + \frac{3}{10}$

Add fraction (Take LCM)

$M = 5 + \frac{7 + 3}{10}$

$M = 5 + \frac{10}{10}$

Divide Fraction

$M = 5 + 1$

$M = 6$

Hence, the equation of the system is

$M = 4\frac{7}{10} + 1\frac{3}{10}$

and the solution is $M = 6$

Molly’s work is correct

7 0

3 years ago