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tangare [24]
1 year ago
5

3х – 8y = -56 -3х – 56 = -8ysolve using system of equations

Mathematics
1 answer:
matrenka [14]1 year ago
7 0
\begin{gathered} 3x-8y=-56 \\ -3x+8y=56 \\ \text{those equations are equivalent, so we only need to solve one},\text{ } \\ 3x-8y=-56\rightarrow3x=-56+8y\rightarrow x=\frac{-56+8y}{3} \\ \text{let y=t} \\ S=\lbrace(\frac{-56+8t}{3},t)^{}\colon t\in R\}^{} \end{gathered}

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2x + 7 &gt; 11<br> Please and thank you
Oxana [17]

Answer:

x = > 2

Step-by-step explanation:

This is the answer because:

1) >2 means x is any number greater than 2

2) For example, 2 x 3 = 6 +  7 = 13

3) 13 is greater than 11

Hope this helps!

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3 years ago
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a_sh-v [17]

Answer:

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3 years ago
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kherson [118]

\sf{\qquad\qquad\huge\underline{{\sf Answer}}}

Here we go ~

  • take value of pi = 3

  • r = radius = 5 cm

  • h = height = 9 cm

Let's calculate volume of Cylinder ~

\qquad \sf  \dashrightarrow \:v =  \pi {r}^{2} h

\qquad \sf  \dashrightarrow \:v = 3 \times  {5}^{2}  \times 9

\qquad \sf  \dashrightarrow \:v =  3\times25 \times 9

\qquad \sf  \dashrightarrow \:v = 75 \times 9

\qquad \sf  \dashrightarrow \:v =67 5 \:  \: cm {}^{3}

That's all, ask me if you have any queries ~

7 0
2 years ago
Quadrilateral PQRS is a rhombus. Find the value of y
White raven [17]

Answer:

3

Step-by-step explanation:

set the two equations equal to each other

2y+3 = 5y-6

add 6 to both sides

subtract 2y from both sides

9=3y

divide both sides by 3

y=3

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kap26 [50]

Answer:

D

Step-by-step explanation:

imagen the inequality sign is a normal equal sign so you would just do it as a normal problem solving for the variable.

so first get n by its self so you start by gettting rid of 8.7, so to cancle it out you minus it by its self and what you do to one side you do to the other.

now you have -2.5n > -3.25

divide it by its self by both sides and you get 1.3

and because you divided by a negative your sign switches to the other side. It’s called the negative division rule

7 0
3 years ago
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