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2 years ago

Is (2,3) a solution of the system

Mathematics

1 answer:

seropon [69]2 years ago

3 0

Answer:

Yes

Step-by-step explanation:

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N/2+5=3<br><br> n/2 (as in fractions )

Rudik [331]

N= -4

-4/2+5=3

-2+5=3 you have to subtract the 5 from three first and then multiply the answer by 2 to get n

3 0

2 years ago

Read 2 more answers

If 10 percent of x is 20 what is 23 percent of x

Zarrin [17]

X = 200 because when finding 10% of s number we divide the number to 10. then you find 23 percent of 200. which is 46, because percentages are found out of 100 and 200 is 100 multiplied by 2. So we have to multiply 23 by 2. the answer is 46.

6 0

3 years ago

Solve the equation to find where the treste ground levelEnter your answers from least to greatest and round to the nearest The m

DaniilM [7]

Answer:

The trestle meets ground level at 0.875 units and 9.125 units

Step-by-step explanation:

Poorly formatted question.

The given equation is:

$y = -x^2 + 10x - 8$

Required

The point where the trestle gets to the ground level

To do this, we set $y = 0$

So, we have:

$-x^2 + 10x - 8 = 0$

Multiply through by -1

$x^2 -10x + 8 = 0$

Solve using quadratic formula:

$x= \frac{-b \± \sqrt{b^2 - 4ac}}{2a}$

Where:

$a = 1; b =-10; c = 8$

So, we have:

$x= \frac{-(-10) \± \sqrt{(-10)^2 - 4*1*8}}{2*1}$

$x= \frac{-(-10) \± \sqrt{68}}{2*1}$

$x= \frac{-(-10) \± 8.25}{2}$

$x= \frac{10 \± 8.25}{2}$

Solve the fraction

$x= 5 \± 4.125$

Split

$x= 5 + 4.125\ or\ x= 5 - 4.125$

$x= 9.125\ or\ x= 0.875$

7 0

2 years ago

There are 60 inches in 5 feet.how many inches are in 8 ft?

Karolina [17]

Answer:

63in

Step-by-step explanation:

7 0

2 years ago

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please.. this is due by midnight and i’m close to tears.. from a point in a straight road, Chris and Elena ride bicycles in the

blondinia [14]

Chris is going 10 mph. After 9 hours, Chris has gone 90 miles. Elena is going 14 mph. After 9 hours, she has gone 126 miles. 126 miles is 36 miles more then 90 miles.

$10 \times 9 = 90 \\ 14 \times 9 = 126 \\ 126 - 90 = 36$

4 0

3 years ago