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4 years ago

What is -2 1/8 divided by 1 1/4

Mathematics

1 answer:

damaskus [11]4 years ago

4 0

Answer:

-17/10 ( or 1 7/10)

Step-by-step explanation:

-2 1/8 ÷ 1 1/4 (convert into improper fractions)

= (-17/8) ÷ (5/4)

= (-17/8) x (4/5)

= - (17 x 4) / (8 x 5)

= -68/40

= -17/10 ( or 1 7/10)

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4 years ago

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4 years ago

What is the difference in speed between two cars when one traveled 175 km in 4 hours and the other traveled the same distance in

vovangra [49]

<h3>Given :</h3>

Distance = 175
Time 1 = 4 hours

$\\ \\$

Different between two speeds when distance is same.

$\\ \\$

<h3>Solution:</h3>

In first part we will find speed 1 in which time is 4 hours

we know:-

$\bigstar \boxed{ \rm speed = \frac{distance}{time} }$

So:-

$\dashrightarrow\sf speed_1 = \dfrac{distance}{time_1}$

$\\ \\$

$\dashrightarrow\sf speed_1 = \dfrac{175}{4}$

$\\ \\$

$\dashrightarrow\bf speed_1 = 43.75 \: km {h}^{ - 1}$

In first part we will find speed 2 in which time is 3 hours

Again:

$\bigstar \boxed{ \rm speed = \frac{distance}{time} }$

$\\ \\$

$\dashrightarrow\sf speed_2 = \dfrac{distance}{time_2}$

$\\ \\$

$\dashrightarrow\sf speed_2 = \dfrac{175}{3}$

$\\ \\$

$\dashrightarrow\bf speed_2 = 58.33kmh^{-1}$

$\\ \\$

In this part we will find different between speed 1 and speed 2

$\bigstar \boxed{\rm Difference = speed_2 - speed_1}$

$\\ \\$

So :

$\dashrightarrow\sf Difference = speed_2 - speed_1 \\$

$\\ \\$

$\dashrightarrow\sf Difference =58.33 - 43.75\\$

$\\ \\$

$\dashrightarrow\bf Difference =14.58kmh^{-1}\\$

$\\ \\$

$\therefore \underline {\textsf{\textbf{Difference in speed between two cars is \red{14.58km/h}}}}$

4 0

3 years ago

At 4:00 a.m., the outside temperature was -28°F. How much warmer does 1 pc

asambeis [7]

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8 0

3 years ago

Help me please!!!!!!

Setler [38]

Answer:

Step-by-step explanation:

1. multiply all terms by the same value to eliminate fraction denominators (n times 5/8 = n times 25/n)

2. cancel multiplied terms that are in the denominator (n times 5/8 = 25

3.re order terms so constants are on the left (5/8n =25)

4. combine multiplied terms into a single fraction (5n/8 = 25)

5. multiply all terms by the same value to eliminate fraction denominators (8 times 5n/8 = 8 times 25)

6. cancel multiplied terms that are in the denominator (5n=8 times 25)

7. multiply the numbers (5n = 8 times 25 5n= 200)

8. simplify (n=40)

5 0

3 years ago