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3 years ago

Solve Simultanously usingsubstitution method15v+2W=313v-4w=3

Mathematics

2 answers:

Romashka [77]3 years ago

7 0

Step-by-step explanation:

V=-2w+31 over 15

w=-15v+31 over 2

zubka84 [21]3 years ago

6 0

Answer:

In Equation 2 Make 3v the Subject Of The Formula.(3v= 3+4w)

Sub Equation 3 In equation 2(3+4w-4w=3)

4w-4w=3-3

w=0

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100m In 9 3/5 seconds

Nostrana [21]

Answer:

Speed = 10.42 m/secs

Step-by-step explanation:

We have been given with:-

Distance = 100m

Time taken = 9 $\frac{3}{5}$ secs

1) First, we need to convert the mixed number 9 $\frac{3}{5}$ to an improper fraction.

<u>Method to convert a mixed number to an improper fraction</u>

<u> $a\frac{b}{c} = \frac{c*a+b}{c}$ </u>

Applying the above formula, we get

9 $\frac{3}{5}$ = $\frac{5*9+3}{5}$

= $\frac{45+3}{5}$

= $\frac{48}{5}$

2) Now we need to convert $\frac{48}{5}$ into a decimal by dividing 48 by 5.

We get time taken as 9.6 secs

3) We need to find the speed using the below formula:-

Speed = $\frac{Distance}{Time taken}$

Plugging the values of Distance and Time taken into the formula, we get

Speed = $\frac{100}{9.6}$

= 10.416 m/secs

4) Upon rounding it to the nearest hundredth, we get

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wlad13 [49]

Answer:

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Step-by-step explanation:

Begin to factor by using GCF by finding the greatest common factor. Here it is k.

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3 years ago

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Answer:

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4 years ago

Solve Simultanously usingsubstitution method15v+2W=313v-4w=3​

Solve Simultanously usingsubstitution method15v+2W=313v-4w=3