All categories

3 years ago

Math help!

Mathematics

1 answer:

Ronch [10]3 years ago

7 0

Below is the graph for this equation.

You might be interested in

Round 69.625 to the nearest whole<br> number, the nearest tenth, and the<br> nearest hundredth.

muminat

70 to the nearest whole number

69.6 to the nearest tenth

69.63 to the nearest hundredth

BRAINLIEST PLSSS

6 0

1 year ago

Jenna borrowed $5,000 for 3 years and had to pay $1,350 simple interest at the end of that time. What RATE of interest did she p

mote1985 [20]

Answer:

Simple Interest =PRT/100

Rate= I ×100/PT

=1350×100/5000×3

135000/15000

=9%

7 0

2 years ago

Solve by elimination <br> -5x+8y=-27<br> -8x+7y=-20

Anika [276]

Answer:

x = -1 , y = -4

Step-by-step explanation by elimination:

Solve the following system:

{8 y - 5 x = -27 | (equation 1)

7 y - 8 x = -20 | (equation 2)

Swap equation 1 with equation 2:

{-(8 x) + 7 y = -20 | (equation 1)

-(5 x) + 8 y = -27 | (equation 2)

Subtract 5/8 × (equation 1) from equation 2:

{-(8 x) + 7 y = -20 | (equation 1)

0 x+(29 y)/8 = (-29)/2 | (equation 2)

Multiply equation 2 by 8/29:

{-(8 x) + 7 y = -20 | (equation 1)

0 x+y = -4 | (equation 2)

Subtract 7 × (equation 2) from equation 1:

{-(8 x)+0 y = 8 | (equation 1)

0 x+y = -4 | (equation 2)

Divide equation 1 by -8:

{x+0 y = -1 | (equation 1)

0 x+y = -4 | (equation 2)

Collect results:

Answer: {x = -1 , y = -4

7 0

3 years ago

Two cars are 750 miles apart and start moving towards each other. One car moves with the average speed of 40 mph and the other i

____ [38]

They will meet at 10:45 exactly.

5 0

3 years ago

Read 2 more answers

The Magic Dragon has 2013 heads. Leo the Brave is cutting off the Dragon's heads at a speed of 5 heads per minute. The Dragon's

aivan3 [116]

Answer: The answer is 1833 heads and 11 hours, 11 minutes.

Step-by-step explanation: Given that the Magic Dragon has 2013 heads. The brave Leo is cutting off the Dragon's heads at a speed of 5 heads per minute. But, the Dragon's heads are growing back at a speed of 2 heads per minute.

So, the number of heads of Dragon that are decreasing per minute = 3.

Therefore, after 1 hour, i.e., 60 minutes, The number of heads of the Dragon

= 2013 - 60 × 3 = 2013 - 180 = 1833 heads.

Now, the fight will last until all the heads of the Dragon are cut. Let the fight lasts for 'x' minutes, then

$2013-x\times 3=0\\\\\Rightarrow 3x=2013\\\\\Rightarrow x=\dfrac{2013}{3}=671.$

Hence the fight lasts for 671 minutes, i.e., 11 hours and 11 minutes.

Thus, the Dragon will have 1833 heads after 1 hour and the fight will last for 11 hour and 11 minutes.

3 0

3 years ago