Andrea deposited 138 dollars into her bank account. Which expression represents Andrea’s bank account? *

Mathematics

2 answers:

valentinak56 [21]3 years ago

7 0

Answer:

A. x+138

Step-by-step explanation:

Deposit into her bank account is adding money to her bank account. So that means she's adding $138 to her bank. Which gives us the expression of x+138.

ANEK [815]3 years ago

5 0

Answer: X+138

Step-by-step explanation: Because, when you deposit money into a bank account you are adding money to your account.

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drek231 [11]

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6 0

3 years ago

Select the correct function that represents this data.

lidiya [134]

Answer:

f(x) = -5x - 2

Step-by-step explanation:

Plug in the first set of values into each possible equation. Whichever equation yields the correct ouputs (y-values) for ALL input (x-values) is the correct answer. For the function f(x) = -5x - 2, f(-2) = 8, f(-1) = 3 and so on... So f(x) = -5x - 2 is the correct answer!

Hope this helps!

5 0

2 years ago

X = -2y + 300 3y = 800 - 4x

devlian [24]

Answer:

Step-by-step explanation:

$\left\{\begin{array}{ccc}x=-2y+300&(1)\\3y=800-4x&(2)\end{array}\right\\\\\text{Substitute (1) to (2):}\\\\3y=800-4(-2y+300)\qquad\text{use the distributive property:}\ a(b+c)=ab+ac\\\\3y=800+(-4)(-2y)+(-4)(300)\\\\3y=800+8y-1200\\\\3y=8y-400\qquad\text{subtract}\ 8y\ \text{from both sides}\\\\-5y=-400\qquad\text{divide both sides by (-5)}\\\\y=80\\\\\text{Put it to (1):}\\\\x=-2(80)+300\\\\x=-160+300\\\\x=140$