# INTEGERS

posted by .

Starting at home a salesman drove 20km east, then 9km north, then 4km east. finally, he drove x km south and at that point he was exactly 25 km away from his home. find x.

• INTEGERS -

d = 24km@0o+9km@90o+4km@0o+Nkm@270o.

Find N.
X = 20+4 = 24 km.
Y = (8-N)km

d^2 = X^2 + Y^2 = 35^2.
d^2 = (130^2+(8-N)^2 = 35^2
576+(N^2-16N+64) = 1225
N^2-16N+640-1225 = 0
N^2-16N-585 = 0

• INT EGERS -

Oops! Name is Henry. Not anonymous.

## Similar Questions

1. ### science

A ship sailed 15 km north, then 20km east followed by 10km south. Find its displacement from its starting point
2. ### Story Problem

Ann drove 8 miles east, 4 miles south, 3 miles east, 6 miles north, 7 miles west, and 5 miles south. How many miles, in each of the compass directions, is she now from her starting point?
3. ### math - integers

5. Robert, a real estate agent, drove 170 kms north from his home. The following day, he drove 54 kilometers south. How far and in what direction did he have to drive to get back home?
4. ### INTEGERS

From his house, a man biked 3km east, 4km north, 1km east then 1km south. At that point, how far is he from his house?
5. ### math

Mr. Wong left his house and drove north for 5 blocks, then turned right and drove 6 blocks, then turned south and drove 2 more blocks. Finally, he turned right again and drove one more block to end up at the library. How many blocks …
6. ### Math

My dauther has the following question . She is in 4th Grade. Mr. Wong left his house and drove north for 5 blocks, then turned right and drove 6 blocks, then turned south and drove 2 more blocks. Finally, he turned right again and …
7. ### rajput

a man drove his car northward, then turned left and drove 10 km and again turned left and drove 20km. he found himself 10 km west of his starting point . how far did he drive northward initially
8. ### maths

a man drove his car northward, then turned left and drove 10 km and again turned left and drove 20km. he found himself 10 km west of his starting point . how far did he drive northward initially
9. ### math

salil travels 9km towards east then8km towards north and finally 7km towards east . how far away is he from his original place?
10. ### math

salil travels 9km towards east then8km towards north and finally 7km towards east . how far away is he from his original place?

More Similar Questions