Multiply first example by 3 and subtract by second example, you will get the following:
3*(5x + 2y) = 3*22 => 3*5x + 3*2y = 66 => 15x + 6y = 66
now subtraction:
(15x + 6y) - (-2x + 6y) = 66 - 3
15x + 6y + 2x - 6y = 63
15x + 2x + 6y - 6y = 63
17x = 63
x = 63/17 ≈ 3.705..... and as it says to round to the nearest tenth our answer would be: x = 3.7
Answer:
20mm
Step-by-step explanation:
base=20mm
base x 2 because there are two long lines
20 x 2 = 40
42-40=2
amount needed on either side to balance
height=1mm
20 x 1 = 20mm
area = 20mm
Step-by-step explanation:
8-1/4-7 = 7/-3 this the answer I guess
Answer:
Monthly payment = $908.99
(A) $125,862.32
Step-by-step explanation:
Given:
Present value = $150,000
Duration, n = 30 years = 30 × 12 = 360 months
Interest = 6.1% compounded monthly
or
Monthly interest, r = = 0.5083%
Now,
Monthly payments can be calculated using the formula
thus,
or
Monthly payment = $908.99
(A) unpaid balance after 10 years will be equal to the payment made in 20 years starting from the end of 10th year
thus,
n = 20 × 12 = 240
Unpaid balance =
or
Unpaid balance =
or
Unpaid balance after 10 years = $125,862.32
Answer:
$76
Step-by-step explanation:
10 guests -----> Costs $9.50
80 guests -----> Costs $9.50 x 8 = $76.00 (because 80 is 8 times 10)