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3 years ago

Choose the best definition for the following term:substitution

2 answers:

8 0

A strategy for solving systems of equations that include solving for one variable and using that solution to find the other variable.

choli [55]3 years ago

3 0

the action of replacing someone or something with another person or thing

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Plz answer question three asp plz

zepelin [54]

Which one the first three???

4 0

3 years ago

Please solve the problems attached in the pictures. Thanks!

UNO [17]

I think it is 3x-3y+z=12

5 0

3 years ago

-4x 3y = -2 y = x -1

MA_775_DIABLO [31]

Answer:

The answer is: X= -1 and y= -2 so (-1,-2)

hope this helps

5 0

3 years ago

Orlando bought a pair of shoes that was on sale for $30 off. The original price of the shoes was $112. What was the sale price o

Gwar [14]

Step-by-step explanation:

$112. - $30 = $82.00

$82.00

x. .08

= $6.56 sales tax

$82.00 + $6.56 = $88.56 total price after tax

4 0

3 years ago

Two truckers leave from the same point driving in opposite directions, the first trucker driving at 62 miles per hour and the s

Elodia [21]

Answer:

1 hour 42 minutes

Step-by-step explanation:

Given: Speed of 1st trucker= 62 mph

Speed of 2nd trucker= 66 mph

Total distance need to cover to be in contact is 270 miles

1st trucker start 1 hour ahead of 2nd trucker

Lets assume 2nd trucker take `x` hours to be in contact and 1st trucker take `(x+1)` hours.

We know, distance= $speed\times time$

1st trucker, distance $(d_1)= 62\times (x+1)$

∴ $d_1= 62x+62$

2nd trucker, distance $(d_2)= 66\times x$

∴ $d_2= 66x$

Now, putting the values in an equation.

$d_1+d_2= 270$

⇒ $(62x+62)+66x= 270$

Opening the parenthesis to solve and subtracting both side by 62

⇒ $122x= 208$

∴ x= $\frac{208}{122} = 1.70\ h$ = 1 hour 42 minutes

∴ It will take 1 hour 42 minutes to be able contact each other after first trucker leaves.

3 0

3 years ago