Answer:
7x+y= -2
Step-by-step explanation:
Add 7x to both sides to get Ax+By=C
Hope this helps ^-^
Answer:
720 pennies
Step-by-step explanation:
Initially the Penny bank is 1/2 full
After removing 120 pennies it is 1/3 full;
Therefore. the fraction equivalent to 120 pennies is;
1/2 -1/3 = 1/6
Thus; Assuming the number of pennies that the penny bank can hold when full is x; then;
1/6 of x = 120
x = 120 × 6
= 720 pennies
Hence, when the penny bank is full it can hold 720 pennies.
Area = 3.14 * (17 sqrt2)^2
= 3.14 * 17^2*2
= 3.14* 289 * 2
= 1814.92 in^2
Answer:
19.26
Step-by-step explanation:
method 1 -
original cost - 12
sell cost - 12×1.5×1.07 =19.26 answer
method 2-
original cost - 12
sell cost increase by 50 % = 12+ 6 = 18
tax 7 % = 18×7/100 = 1.26
total cost = 18+1.26 = 19.26
Answer choice A is incorrect as it is missing the variable 'x' in it.
Let's test answer choice B.
y = mx + b
m is the slope
b is the y-intercept
m = 2/3
b = -5
y = (2/3)x - 5
B is one of the answers.
Let's test answer choice C.
6y = 4x -30
y = (4/6)x - 30/6
y = (2/3)x - 5
Answer choice C is also correct.
Let's test answer choice D now.
y = (2/3)x - 5
Plug in (3,-3)
-3 = (2/3)(3) - 5
-3 = 2 - 5
-3 = -3
This is correct, so therefore D is also one of the answers.
Your answer is B, C and D.
