Use elimination
Multiply first equation by 4
12a - 8b = 56
12a + 9b = 39
Subtract both
-17b = 17
b = -1
Plug in -1 for b
3a - 2(-1) = 14
3a = 12, a = 4
Final answer: a = 4, b = -1
Answer:
Step-by-step explanation:
Girls:Total number of people
89:235
89:47
Answer:
All positive integers less than or equal to 4
Step-by-step explanation:
The domain of the function are all possible values which variable x can take.
Since x is the number of times the root splits, x can take values 1 (1 time splits), 2 (2 times splits), 3 (3 times splits), 4 (4 times splits).
The variable x cannot take negative values because it cannot split -2 times.
The variable x cannot take integer values greater than 4, because this type of plant root splits 4 times while growing in the ground.
Hence, the domain of the function f(x) is all positive integers less than or equal to 4.
Answer:
y = -1/2x - 7
Step-by-step explanation:
y2 - y1 / x2 - x1
-6 - (-5) / -2 - (-4)
-1 / 2
= -1/2
y = -1/2x + b
-5 = -1/2(-4) + b
-5 = 2 + b
-7 = b
Answer:
The cost for making x banjos is c = $ 400 x
Step-by-step explanation:
Given as :
The making cost of each banjos = $ 250
The selling cost of each banjo = $ 400
Let The cost for making x banjos = c
Now,
∵ For making 1 banjos , the making cost = $ 250
∴ For making x banjos , the making cost = $ 250 × x
Again,
∵ The selling price of 1 banjos = $ 400
∴ The selling price of x banjos = = $ 400 × x
Hence The cost for making x banjos is c = $ 400 x . Answer
