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4 years ago

| When solving a system of equations, Jared found y = x +

Mathematics

2 answers:

pashok25 [27]4 years ago

8 0

Answer:

Both Jared and Nicole are correct. You can solve for either variable and use the equivalent expression to create a one-variable equation. Then you can solve. Jared would have created a one-variable equation that can be used to solve for x, whereas Nicole would have created a one-variable equation that can be used to solve for y.

borishaifa [10]4 years ago

4 0

Answer:

They are both correct in their procedure. Nicole solved for one variable in the equation, while Jared solved for the other variable.

Step-by-step explanation:

Notice that if you have the equation y = x + 10 in a system of equations, the most immediate thing to do is to try to use the fact that "y" is the same as "x + 10" to substitute in the other equation of the system.

But, this same equation can also be used to solve for the other variable "y", by simply subtracting 10 from both sides, which gives:

y - 10 = x

So now, one can use "y-10" to substitute for x in the other equation.

Both procedures are correct, and simply will lead to finding a different variable first when solving the equation.

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Which graph below shows the solutions for the linear inequality ys x-3?

liraira [26]

Answer:

Graph A.

Step-by-step explanation:

Given the inequality: $y\leq \dfrac{1}{4}x-3$

Since the sign is "less than or equal to", the line cannot be dotted. Therefore, Options C and D are incorrect.

Since the sign is a "less than" sign, the required region must be below the line. Therefore, the graph which shows the given inequality is Graph A.

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3 years ago

She purchase 2 hamburger kid meals and 3 chicken nugget for $16. On Thursday she bought 2 hamburger and 10 chicken nugget for $4

juin [17]

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Step-by-step explanation:

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3 years ago

Find the first four (4) terms of the sequence if An=(4) an-1 and a1 =1/2.

vovikov84 [41]

Seems to be
an=4(an-1)
means the nth term is 4 times the previus term
easy, times each term by 4

so 2nd is 4*1/2 or 2
3rd term is 2 times 4 or 8
4th term is 8*4=32

first 4 terms are 1/2, 2, 8, 32

6 0

3 years ago

Read 2 more answers

Jamal works as an electrician's apprentice. He rewired 4 electrical outlets in 1 and one-halfhours. If he works at the same pace

iragen [17]

Answer:

We conclude that Jamal will rewired 20 electrical outlets for 7.5 hours.

Step-by-step explanation:

We know that Jamal rewired 4 electrical outlets in 1 and one-half hours. We calculate how many electrical outlets will he rewired for 7.5 hours.

We have the following proportion:

$4:1.5=x:7.5\\\\1.5x=4\cdot 7.5\\\\1.5x=30\\\\x=\frac{30}{1.5}\\\\x=20$

We conclude that Jamal will rewired 20 electrical outlets for 7.5 hours.

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3 years ago

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Y=3x+2 and x+2y=11 how do you solve these linear equations by using substitution

Pani-rosa [81]

Plug in y=3x+2 into the y in the second equation.

x + 2(3x+2) = 11
x + 6x + 4 = 11
7x + 4 = 11
7x = 7
x = 1

then, plug the x value into x in the first equation.

y = 3(1) + 2
y = 3 +2
y = 5

3 0

3 years ago