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fenix001 [56]
3 years ago
8

* i will pay you of you can finsih all my work math only* Finish solving the system of equations, y = x – 15 and y = –2x + 3, us

ing the substitution method.
1. Use substitution to create a one-variable linear equation: x – 15 = –2x + 3

2. Solve to determine the unknown variable in the equation: 3x = 18
x = 6

3. Substitute the value of the variable into either original equation to solve for the other variable.

4. Write the solution to the system of equations as an ordered pair.

The solution to the system is
.
Mathematics
2 answers:
vazorg [7]3 years ago
7 0
Ok so 123456678890 square fr liquid meters 11.3 thanks for the points don’t use this as a answer sorry 679910
disa [49]3 years ago
6 0

Answer:

1)x=6

Step-by-step explanation:

step 1: add 2x to both sides.

x−15+2x=−2x+3+2x

3x−15=3

step 2: add 15 to both sides.

3x−15+15=3+15

3x=18

step 3: divide both sides by 3.

3x/3=18/3

x=6

answer:

x=6

good luck :)

hopefully, this helps

i don't really know what it is that you need but **please let me know if this was incorrcect**

have a nice day !!

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SOVA2 [1]

Answer:

4 inches

Step-by-step explanation:

Actual dimensions:

Length = 15 feet

Width = 12 feet

Scale dimensions:

Length = 5 inches

Width = x inches

Write a proportion:

\dfrac{\text{Actual length}}{\text{Scale length}}=\dfrac{\text{Actual width}}{\text{Scale width}}\\ \\ \\\dfrac{15\ feet}{5\ inches}=\dfrac{12\ feet}{x\ inches}\\ \\x=\dfrac{5\ inches\times 12\ feet}{15\ feet}=4\ inches

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3 years ago
Evaluate the power: (−3)^4<br> A. 81<br> B. -81<br> C. 243<br> D. -331
Agata [3.3K]

Answer:

The answer is 81.

Step-by-step explanation:

Since the power of 4 is even, the result will be positive.

{3}^{4}

Simplify.

81

<u>hence</u><u>,</u><u> </u><u>the</u><u> </u><u>answer</u><u> </u><u>is</u><u> </u><u>Option</u><u> </u><u>A</u><u>)</u><u> </u><u>81</u><u>.</u>

7 0
3 years ago
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When a person is breathing normally the amount of air in their lawns varies sinusoidally. When full Karen’s lungs hold 2.8 L of
makkiz [27]

Answer:

A(t) = 2.2\sin \frac{(t - 2)\pi }{6} + 0.6

Step-by-step explanation:

Let the function of quantity in the lung of air be A(t)

So A(t) \alpha \sin (\frac{t - \alpha }{k} )

so, A(t) = Amax sin t + b

A(t) = 2.8t⇒ max

A(t) = 0.6t ⇒ min

max value of A(t) occur when sin(t) = 1

and min value of A(t) = 0

So b = 0.6

and A(max) = 2.2

A(t) = 2.2\sin \frac{(t)}{k} + 0.6

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So function reduce to

A(t) = 2.2\sin \frac{(t - 2)}{k} + 0.6

and t = 5 max value of volume is represent

so,

\sin \frac{t - \alpha }{k} = 1

\frac{t - 2}{k} = \frac{\pi }{2} when t = 5

\frac{6}{\pi } = k

so the equation becomes

A(t) = 2.2\sin \frac{(t - 2)\pi }{6} + 0.6

7 0
3 years ago
S is a subset within a universal set, U
nataly862011 [7]
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4 0
1 year ago
A merchant bought 30 dozen pairs of gloves. How many individual gloves did the merchant buy?
gtnhenbr [62]
In this question there are several information's of immense importance already given.
The number of pair of gloves that the merchant bought = 30 dozens
1 dozen = 12 gloves
Also
1 pair = 2 gloves
Then
The total numberof individual gloves bought
by the merchant = 30 * 12 * 2
                             = 720
The correct option among all the options given in the question is option "C" and it can be checked via the above solution.
3 0
3 years ago
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