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lidiya [134]
4 years ago
13

What is the result of subtracting the second equation from the first? -2x+y=0 - 7x + 3y = 2

Mathematics
1 answer:
artcher [175]4 years ago
6 0

Answer:

5x - 2y = - 2

Step-by-step explanation:

Given the 2 equations

- 2x + y = 0 → (1)

- 7x + 3y = 2 → (2)

Subtracting (2) from (1) term by term

- 2x - (- 7x) + y - 3y = 0 - 2, that is

- 2x + 7x - 2y = - 2

5x - 2y = - 2

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At a drive through restaurant Juan’s family ordered a small drink and m medium drinks. Alex’s family ordered m medium drinks and
sertanlavr [38]

<u>Answer: </u>

Expression x + 2my + z represents cost of order where x, y, z are cost of small , medium and large drinks (in dollars) respectively.

<u>Solution: </u>

Given that  

Juan’s family ordered a small drink and m medium drinks.

Alex family ordered m medium drinks and a large drink.

Need to write an algebraic expression which shows total cost of both order in dollars.

Let’s assume cost of one small drink = x

And assume cost of one medium drink = y

And assume cost of one large drink = z

So now cost of order of Juan’s family is equal to cost of 1 small drink + cost of m medium drinks = 1 \times x + m \times y

= x + my

And cost of order of Alex family is equal to cost of m medium drinks + cost of one large drink

= m x y + 1 x z

=my + z

So total cost of both order in dollars = x + my + my + z = x + 2my + z

Hence expression x + 2my + z represents cost of order where x , y , z are cost of small , medium and large drinks (in dollars) respectively.  

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3 years ago
Solve for x: <br> (125^2x)(5x) = 25^3
olga nikolaevna [1]
(125^2x)(5x) = 25^3
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<span>78125x=15625
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Hope I helped ;D
6 0
3 years ago
1/4 + 4 (1/2 - 3/4)the to the second power
Alborosie

Answer:

2/4

Step-by-step explanation:

1/4 + 4 (1/2 - 3/4)^2

=>1/4 + 4 (2/4 - 3/4)^2

=>1/4 + 4 (-1/4)^2

=>1/4 + 4 (1/16)

=>1/4 + 1/4

=>2/4

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Statement C: Increase in short-run aggregate supply may mean supply of more raw materials to the production thus increased productivity.

Statement D: Increase in customer spending will mean increased demand and thus leads to shifting in supply. This leads to increased production.<span />
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3 years ago
Brand a has a box of 42 forks for $2.37 brand b has a box of 72 forks for $3.57 find the unit price for each brand then state wh
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Brand a: per fork is 0.06 cents.

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