3 years ago

Which of these ordered pairs is the best estimate of the solution of the system y = 3x + 2 and y = -1/4 x + 1?

1 answer:

6 0

If the solution exists, y=y....

3x+2=-x/4+1 make everything have a common denominator of 4...

(12x+8)/4=(-x+4)/4 now multiply both sides by 4

12x+8=4-x add x to both sides

13x+8=4 subtract 8 from both sides

13x=-4 divide both sides by 13

x=-4/13

x≈-0.31 and the only pair in your choices having an x value close to that is:

(-0.3, 1.1)

You might be interested in

The difference of a number and five divided by 10

Hunter-Best [27]

Answer:

(n-5) ÷ 10

Step-by-step explanation:

7 0

3 years ago

Y = -1/5x + 3 ; (2,8)

Bad White [126]

8=-1/5(2)+3
8=-2/5+3
8=2 3/5
The equation is incorrect

6 0

3 years ago

What was the original price if: after 10% discount it becomes $450?

steposvetlana [31]

100-10=90

450=90% of original find 100%
divide by 9
50=10%
times 10
500=100%
origianl price=$500 (this is the hack way that only works with nice numbers)

7 0

3 years ago

Read 2 more answers

what 2 numbers should be placed in the blanks below so that the difference between consecutive numbers is the same? 17,_,_

Komok [63]

The answer is 25, 33. The difference between each consecutive number is 8.

5 0

3 years ago

Deep's property tax is $690.65 and is due April 15. He does not pay until July 6. The county adds a penalty of 7.3% simple int

bazaltina [42]

$\bf \qquad \textit{Simple Interest Earned}\\\\
I = Prt\qquad 
\begin{cases}
I=\textit{interest earned}\\
P=\textit{original amount deposited}\to& \$690.65\\
r=rate\to 7.3\%\to \frac{7.3}{100}\to &0.073\\
t=years\to &\frac{15+31+30+6}{365}
\end{cases}$

the penalty he'll incurred into, since July 6 is after the deadline of April 15, is I = Prt

now "t" is in years, how many days after April 15 to July 6? well, 15 + 31 + 30 +6, to convert to years, divide by 365

3 0

3 years ago