The value of x is -2 and the value of y is -1.
Step-by-step explanation:
Step 1; The given equations are taken as
-3y -9x =21 or -9x -3y = 21, take this as equation 1
-18x +4y =32, take this as equation 2
Step 2; We multiply equation 1 with 2 and equation 2 with 1 so we can cancel out the variable x in both equations. By doing this we get
-18x -6y =42, take this as equation 3
-18x +4y =32, this is the same as equation 2
If we subtract 3 with 2, we cancel out the x variable and can calculate the value of y.
10y = -10 , y = -10/10 = -1
Step 3; Substituting this value of y in any of the previous equations we will get x's value. Here this value of y is substituted in equation 2.
-18x +4(-1) =32, -18x -4 = 32 , -18x = 36, x=-2.
So we have x = -2 and y = -1.
I need help myself lol XD
Using the required arithmetic operations, the number of mowing hours required to meet up with the cost of the Havannian ls 7 hours.
- <em>Cost of Havannian = Php 299</em>
- <em>Amount saved = Php 42 </em>
<u>The amount he'll be given by his parent</u>s = 3(42) = Php 126
<em>Total amount</em> = 42 + 126 = Php 168
Amount left to meet up cost of Havannian = (299 - 168) = Php 131
<u>Lawn cutting rate per hour = Php 20</u>
Number of cutting hours needed = (Php 131 ÷ Php 20) = 6.55 hours
Therefore, in other to meet up with the cost of the Havannian, hell have to mow for atleast 7 hours.
Learn more : brainly.com/question/18112348
Part A: $2.50 * 5 pads = $12.50
$5.75 * 6 pkg markers = $34.50
$12.50 + $34.50 = $47.00 spent on pads and markers
Total spent $65.00 - $47.00 spent on pads and markers = $18.00 left for jars of paint
$18.00 divided by $4.50 = 4 jars of paint that he bought
PART B. The answer is 12 colored pencils.
$18 total spent 3 paint brushes = $9.00
$18 - $9= $9.00 left for color pencils
$9.00 divided by $0.75= 12 colored pencils
the answer is 12 colored pencils
Answer:
successively just watch him adding one
Step-by-step explanation:
y=1+3 y=2+3
y=4 y=5