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nikdorinn [45]
4 years ago
14

  Classify the system and determine the number of solutions. Check all that apply. {7x + y = 13 28x + 4y = -12 A) inconsistent B

)consistent C)infinitely  many solution D) no solution
Mathematics
1 answer:
Ostrovityanka [42]4 years ago
4 0
\left\{\begin{array}{ccc}7x+y=13&|multiply\ both\ sides\ by\ (-4)\\28x+4y=-12\end{array}\right\\+\left\{\begin{array}{ccc}-28x-4y=-52\\28x+4y=-12\end{array}\right\ \ \ |add\ the\ sides\ of\ the\ equations\\------------\\.\ \ \ \ \ \ \ \ 0=-64-FALSE\\\\Answer:A)\ inconsistent\ and\ D)\ no\ solution.
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7 0
3 years ago
Havel and Petra are married and will file a joint tax return. Havel has W-2 income of $40,000, and Petra has W-2 income of $41,6
STatiana [176]

Answer:

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Step-by-step explanation:

7 0
3 years ago
a bicycle tire is 28 inches in diameter. approximately how far does the bicycle move forward each time the wheel goes around? (u
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ANSWER

88 \: inches

EXPLANATION

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8 0
3 years ago
Read 2 more answers
A baseball team played 25 games and won 10 of them. What percent of the games did they win?
GalinKa [24]

Answer: 40%

Step-by-step explanation:

Setting up an equation to solve,

25 as the denominator representing the total number of baseball games played to represent the "whole."

10 as the numerator representing the number of games the baseball games won to represent the "part" you want to calculate as a percentage.

The equation, looking like this,

10/25 = ___

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3 0
3 years ago
PPPPPPPLLLLLEEEEAAASSEEE HHHEEELLLPPPPP!!!!!
VARVARA [1.3K]

Answer:

the answer is a

Step-by-step explanation:

2x +2(x-4)=87

2x+2x-8=87

4x-8=87

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8 0
3 years ago
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