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Ronch [10]
3 years ago
15

If 4x+3y=10 and 2x+7y=20, determine a coefficient for x that makes the equation below true.

Mathematics
1 answer:
pishuonlain [190]3 years ago
8 0
4x + 3y = 10 means 8x + 6y = 20
2x + 7y = 20 as well so
2x + 7y = 8x + 6y
-6x + y = 0

coefficient = -6
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Help it’s homework!!!!
Airida [17]

Answer:

(3x - 3)(x + 2)

Step-by-step explanation:

3x^2 + 3x - 6

(3x^2 + 6x)(-3x - 6)

3x(x + 2) -3(x + 2)

(3x - 3)(x + 2)

3 0
3 years ago
Trình bày ứng dụng của vi phân toàn phần trong việc tính xấp xỉ giá trị của một hàm số hai biến. Cho ví dụ.
Anastaziya [24]
Can you translate this to English
6 0
3 years ago
Can I get help with this please?
sammy [17]
First equation:
5(x+1)=20 —— distribute the 5 to the x and 1
5x+5=20 ——- subtract 5 from 20
5x=15 ———— divide by 5 from both sides
X=3 ————— answer

Second equation:
5x+1=20——— subtract 1 from 20
5x=19 ———— divide by 5 from both sides
X=19/5———— answer in fraction form
X=3.8————- answer in decimal form
8 0
3 years ago
With a beginning balance of $2500 and no additional charges, there is no grace-period, you will just pay the minimum payment eac
valkas [14]

Answer:

a = $31.23 per month

b = $20.83 per month

c = 249.98 = $249.98 interest charges

                   = $624-249.98 = 374.02 profit part decrease 8% inc.                  

d = 35.35%

e = Answer is in the name; basic payment is a contract which means whilst account remains open charges are requested without fail. Should balance be less or on zero, charges are still applied.

Step-by-step explanation:

2500 x 1.2499 = interest only for start month 13 =3124.75

3124.75/ 100 x 1.08   = 8% of this = 249.98 each year.

We only have to divide each by 12 to work out monthly individual charges and subtract to find out payments.

3124.75 - 249.98 = 2874.77 = Total after charges each year.

249.98/12 = 20.83 = monthly charges.

3124.75- 2500 = 624.75 payments each year

624.75/12 = 52.06 month 1 payment before charge

52.06-20.83 =31.23 total minimum payment

2500 + 249.98

Percentage = 200:600 = 1/3 33% + (comparing to ratio 10:25 closer to 40%)

We find ratio 200:600= 33.33 + 49.995/24.75 = 2.02

33+2.02 = 35.35%

7 0
4 years ago
Can someone help me with variable expressions
patriot [66]
(4^8)w This is the answer
4 0
3 years ago
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