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netineya [11]
2 years ago
14

When using substitution to solve this system of equations, what is the result of the first step?

Mathematics
2 answers:
Korolek [52]2 years ago
4 0

Answer:

Solve. Because now you have only one variable.

Step-by-step explanation:

Allushta [10]2 years ago
3 0

Answer:

The method of solving "by substitution" works by solving one of the equations (you choose which one) for one of the variables (you choose which one), and then plugging this back into the other equation, "substituting" for the chosen variable and solving for the other. Then you back-solve for the first variable.

Step-by-step explanation:

Hope this helps you

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Find the value of x in the triangle below.
geniusboy [140]

Answer:

Can't be Solved

Step-by-step explanation:

tan x = opp/adj

tan x = 23/11

tan x = 2.09090909 which is about

tan x = 2.09

x = 64.4 degrees which is the tangent of 2.09 in degrees.

x = 64.4 degrees

This is the only way to solve, since no answer is equivalent it can't be solved.

5 0
2 years ago
Lorena is buying school supplie. She buys 4 notebooks for $2.50 each, 10 pencils for $0.75 each, and 5 pens of equal price.
laila [671]

Answer:

The answer is $1.25

Step-by-step explanation:

She buys 4 notebooks for $2.50 dollars each.

Multiply 2.50 times 4 then you get $10.00

She buys pencils 10 for $0.75 each.

Multiply 10 times 0.75 and you will get $7.50

Then you add $10.00 + $7.50 which will give you $17.50.

Subtract $17.50 from $23.75 which will give you $6.25.

You divide $6.25 by 5 which will give you $1.25.

5 0
3 years ago
I WILL MAKE YOU THE BRAINLIEST
GaryK [48]

Answer: The first number line.




7 0
3 years ago
The function r(n) = 5n² + 1 represents the value of the nth term in a sequence.
umka21 [38]

Step-by-step explanation:

a_n=5n²+1

➜a_1=5(1)²+1

➜5×1+1

➜5+1

<h3>➜6</h3>

➜a_3=5(3)²+1

➜5×9+1

➜45+1

<h3>➜46</h3>
7 0
3 years ago
On his way to a job site, Spencer stops to buy bags of concrete mix. Each bag weighs 60 pounds. Spencer’s truck can carry at mos
FinnZ [79.3K]

Answer:

28 bags but see below

Step-by-step explanation:

Start by subtracting 320 from 1700

1700 - 320 = 1680

Now he can buy any number of bags as long as he doesn't go over 1680 pounds. Let's see what that means

1680 / 60 = 28 bags of cement.

The answer to the math problem is 28 bags.

In real life, you likely want to trim it that close. What if you hit a bump. That would be very hard on the springs. I'd drop it down to 26 bags if I was actually transporting  concreate mix.

He could by any number of bags between 1 and 28 in a math class and a few less in actual practice.

8 0
3 years ago
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