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expeople1 [14]
3 years ago
14

I need to u substitution method to solve -5x-8y=17 , 2x-7y=-17

Mathematics
1 answer:
harina [27]3 years ago
8 0

Answer:

Alright well solve for the variable in one of the equation's. then substitute the result of the other equation

Point form: - 175/51, 1/51

Equation form:

x = - 175/51          y = 1/51 Hope this help's :)


Step-by-step explanation:


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Dominic invested $9,400 in an account paying an interest rate of 4 % compounded
valentina_108 [34]

Answer:

1648

Step-by-step explanation:

8 0
3 years ago
A store bought a tent for $230 andmarked it up 65%. The store sells thetent with an 8% tax, what is the totalcost of the tent?
Len [333]

The cost for buying the tent is $230.

65% was increasesd for selling. Then the rate is

\begin{gathered} 230\times\frac{65}{100}=14.95 \\ So,\text{ the marked price=230+14.95=}244.95 \end{gathered}

The tax is 8%. So this is from the marked price.

\begin{gathered} \frac{8}{100}\times244.95=19.56 \\ 244.95-19.56=225.39 \end{gathered}

Therefore the total cost of the tent is $225.39.

3 0
1 year ago
What is the answer to 2(3x-4)-5=-7
kozerog [31]

Answer: x = 1

Step-by-step explanation:

1) Reorder the terms:

2(-4 + 3x) + -5 = -7

(-4 * 2 + 3x * 2) + -5 = -7

(-8 + 6x) + -5 = -7

2) Reorder the terms:

-8 + -5 + 6x = -7

3) Combine like terms: -8 + -5 = -13

-13 + 6x = -7

4) Solving

-13 + 6x = -7

5) Solving for variable 'x'.

6) Move all terms containing x to the left, all other terms to the right.

7) Add '13' to each side of the equation.

-13 + 13 + 6x = -7 + 13

8) Combine like terms: -13 + 13 = 0

0 + 6x = -7 + 13

6x = -7 + 13

9) Combine like terms: -7 + 13 = 6

6x = 6

10) Divide each side by '6'.

x = 1

11) Simplifying

x = 1

4 0
3 years ago
For the following right triangle, find the side length x.<br> 15
Iteru [2.4K]
<h3>Answer: <em>17</em></h3>

Step-by-step explanation:

<em>Pythagorean Theorem</em>

<em>a^2+b^2=c^2</em>

<em>8^2+15^2=c^2</em>

<em>64+225=c^2</em>

<em>289=c^2</em>

<em>Now square both sides</em>

<em>x=17</em>

4 0
3 years ago
Read 2 more answers
Solve 3(x + 6) + 8(x – 3) = 27. Show each step of your work.
musickatia [10]
Distribute. 

3(x+6)

3x+18

8(x-3)

8x-24

3x+18+8x-24

Combine like terms. 

11x-6= 27

Add 6 to the other side. 

11x= 33

Divide both sides by 11. 

x=3

I hope this helps!
<em>~cupcake</em>
5 0
3 years ago
Read 2 more answers
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