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lesantik [10]
3 years ago
13

Determine the solution to the system of equations:

Mathematics
1 answer:
Morgarella [4.7K]3 years ago
6 0
  x - 3y = 1   ⇒ 3x - 9y = 3
3x - 5y = 11 ⇒ 3x + 5y = 11
                             -14y = -8
                              -14    -14
                                   y = ⁴/₇
                            x - 3y = 1
                           ⁴/₇ - 3y = 1
                         - ⁴/₇        - ⁴/₇
                                -3y = ³/₇
                                 -3     -3
                                   y = ⁻¹/₇
                             (x, y) = (⁴/₇, ⁻¹/₇)
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Perpendicular to the y axis passes through (-1,2) slope: <br>equation:
icang [17]
Y=-1x+2 I think .................
4 0
3 years ago
Faron wants to paint the four walls in his bedroom. The room measures 12 ft long, 10 ft wide and 8 ft high. There are two doors
Rainbow [258]

Answer:

319 square feet.

Step-by-step explanation:

The walls of the room (the ones on the long side) have an area of 12 x 8 = 96 square feet each one. Thus, their area is 96 x 2= 192 square feet.

The other two walls have an area of 10 x 8 = 80 square feet each one. Thus, their area combined is 80 x 2 = 160 square feet.

Therefore, we have that the total area of the four walls is

192 +160 = 352 square feet

However, we have a door and a window that won't be painted.

The area of the door is: 3 x 7 =21 square feet

The area of the window is 3 x 4 = 12 square feet

Thus, the total amount of area that won't be painted is

21 + 12 = 33 square feet.

So we are going to take the total area minus the area that won't be painted to know the total area that Faron will pain:

352 - 33 = 319 square feet.

Thus, she will paint 319 square feet

4 0
3 years ago
Fwd:The hardware store is having a 15% off sale on lawn mowers this weekend. If x is the original price of a lawn mower, what wi
Sveta_85 [38]

Answer:

<h3>(x - 0.15x) and x(1.00 - 0.15)</h3>

Step-by-step explanation:

Let x be the original price of a lawn mower,

If the hardware store is having a 15% off sale on lawn mowers this weekend, the amount discounted is expressed as;

= 15 % of x

= 0.15 of x

= 0.15x

Final sales price = Original price - discounted price;

Final sales price = x - 0.15x

Factor out x;

x - 0.15x = x(1 - 0.15)

Hence the correct equations are (x - 0.15x)  and x(1.00 - 0.15)

3 0
2 years ago
Solve 5 / 6 ÷ 1 / 12 ?​
Tema [17]

Answer:

10

Step-by-step explanation:

5/6 ÷ 1/12 ➡ 5/6 × 12/1 = 60/6 ➡ 10

5 0
3 years ago
Read 2 more answers
ennifer buys a new typewriter for $590. Jennifer puts 20% down and will pay $70 a month for the next 10 months. What's the total
VMariaS [17]
The total amount paid in monthly payments is found by multiplying $70 by 10.  This is the only information that is needed to find the amount paid over 10 months.

70 x 10 = $700

Ennifer will pay $700 in monthly payments.
8 0
3 years ago
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