Area=legnth times width
(3x+5)(2x+8)=360
first expand
6x²+34x+40=360
minus 360 both sides
6x²+34x-320=0
factor out 2
2(3x²+17x-160)=0
factor inner by trial and error
(2)(x-5)(3x+32)=0
set to zero
x-5=0
x=5
3x+32=0
3x=-32
x=-32/3
false, a dimention can't be negative
x=5
(3x+5)
(3(5)+5)
(15+5)
20
length is 20miiles
(2x+8)
(2(5)+8)
(10+8)
18
width is 18 miles
it is 20 miles by 18 miles
Answer:
x=6
Step-by-step explanation:
Because these lines are parallel, that means these angles are congruent, so you can set up an equation because they are equal to each other.
110=19x-4
add 4 to both sides
114=19x
and divide by 19
6=x
or
x=6
Answer:
$7.45
Step-by-step explanation:
If it's constant , divide the amount he earns by the amount of hours. It should be the same every time.
44.70 divided by 6=7.45
and so on
Answer:
5/6
Step-by-step explanation:
3 hours= 2 1/2 miles
1 hour= 2 1/2 divided by 3
It would take him 5/6 of an hour
Hop this helps!
Remember you can do anything to an equaiton as long asyou do it to both sides
4v+18≥6v+10
minus 4v both sides
4v-4v+18≥6v-4v+10
0+18≥2v+10
18≥2v+10
minus 10 both sides
18-10≥2v+10-10
8≥2v+0
8≥2v
divide both sides by 2
8/2=(2v)/2
4≥(2/2)v
4≥1v
4≥v
v≤4