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kotegsom [21]
3 years ago
9

The sum of two rational numbers is -8. if one of the is -8/17, find the other. plz help me ​

Mathematics
2 answers:
Vesnalui [34]3 years ago
6 0
<h2>Step-by-step explanation:</h2>

-5/7 + x = -1

(-5+7x)/7 = -1

-5 + 7x = -7

7x = -2

<h2>x = -2/7</h2>

please change the digit as per ur QUESTION

Anvisha [2.4K]3 years ago
4 0

Let other one be x

ATQ

\\ \sf\longmapsto x+\dfrac{-8}{17}=-8

\\ \sf\longmapsto\dfrac{17x-8}{17}=-8

\\ \sf\longmapsto 17x-8=17(-8)=-136

\\ \sf\longmapsto 17x=-136+8

\\ \sf\longmapsto 17x=-128

\\ \sf\longmapsto x=\dfrac{-128}{17}

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An object is traveling at a steady speed of 10 1/5 mi​/h. How long will it take the object to travel 1 4/5?
professor190 [17]

The object needs 10.58 minutes to travel 1 4/5 if the object is traveling at a steady speed of 10 1/5 mi​/h.

<h3>What is the distance?</h3>

Distance is a numerical representation of the distance between two items or locations. Distance refers to a physical length or an approximation based on other physics or common usage considerations.

It is given that:

An object is traveling at a steady speed of 10 1/5 mi​/h.

u = 10 1/5 min/h

u = 51/5 min/h

As we know, the speed-distance relationship:

time = distance/speed

distance = 1 4/5 = 9/5

time = (9/5)/(51/5)

time = 9/51 hours

time = (9/51)60

time = 10.58 minutes

Thus, the object needs 10.58 minutes to travel 1 4/5 if the object is traveling at a steady speed of 10 1/5 mi​/h.

Learn more about the distance here:

brainly.com/question/26711747

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3 0
2 years ago
The expression 2y + 2.6 is equal to ? for y=6.5
Delvig [45]

Answer:

15.6

Step-by-step explanation:

2(6.5)+2.6

13+2.6

15.6

8 0
3 years ago
Read 2 more answers
Melanie has $35.00 in her saving account and does cleaning in a neighbor's house for $15.00 per week. Sue has no money saved, bu
katrin2010 [14]
It will take Sue 7 weeks to catch up with melanie... if you make a chart putting in how much they make each week it is an easier way to solve the problem.
6 0
3 years ago
What is the quotient?<br><br> Negative 4 and one-third divided by negative three-fourths
maksim [4K]
First change the mixed fraction to an improper fraction.
-4 1/3 is -13/3 and
Then divide by -3/4. *Remember dividing by a fraction is really multiplying by its inverse.

So
-13/3 ➗-3/4 is
-13/3 ✖️-4/3= 52/9 ( note negative ✖️negative = positive)
52/9 simplified becomes 5 7/9
7 0
4 years ago
BE is parallel to CD.
Viktor [21]

Answer:

CD = 8 cm

Step-by-step explanation:

Given

See attachment

AE=6 cm,\ ED=4 cm,\ AB=4.5 cm,\ BE=4.8 cm.

Required

Find CD

To calculate CD, we first calculate BC using the following equivalent ratio

AB : BC = AE:ED

Substitute values for AB, AE and ED

4.5 : BC = 6 : 4

Express as fraction

\frac{4.5 }{ BC} = \frac{6 }{ 4}

Cross Multiply

BC * 6 = 4.5 * 4

BC * 6 = 18

Divide through by 6

BC = 3

To calculate CD,

We make use of the following equivalent ratio

AB : BE = AC : CD

Where

AC = AB + BC

AC = 4.5 + 3

AC = 7.5

So, we have:

AB : BE = AC : CD

4.5 : 4.8 = 7.5 : CD

Express as fraction

\frac{4.5 }{ 4.8 }= \frac{7.5 }{ CD}

Cross Multiply

4.5 * CD = 7.5 * 4.8

Divide through by 4.5

CD = \frac{7.5 * 4.8}{4.5}

CD = \frac{36}{4.5}

CD = 8

6 0
3 years ago
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