First move the -8 on the left to the right. this makes the inequality become 8x≤-64. Then you want to isolate the x by dividing 8x by 8, and make sure to do the same to -64. This makes it become x<span>≤-8, which is your final answer! Hope this helped :)</span>
This is the concept of proportionality, given that z is directly proportional to x and inversely proportional to y then:
zαx/y
z=(kx)/y
where;
k is the constant of proportionality given by:
k=zy/x
but when x=3 and =6 then z=9.5
therefore:
k=(9.5*6)/3
k=19
hence the formula for z will be:
z=(19x)/y
the value of z when x=8 and y=12 will be:
z=(19*8)/12
z=12 2/3
Answer:
17 <u>1</u>
3
Step-by-step explanation:
= <u>67</u><u>5</u>+ <u>3</u> x = <u>53</u>
100 8 4
------------------------- × 1000
6,750+ 375x = 13,250
375x = 6,500
x = <u>6</u><u>,</u><u>5</u><u>0</u><u>0</u> = <u>2</u><u>6</u><u>0</u> = <u>5</u><u>2</u> = 17 <u>1</u>
375 15 3 3
Answer:
It will be less than 2 hours because in total that would be an hour and 30 minutes.
Step-by-step explanation:
We know it takes 18 minutes for him to walk to school, and we also know there is 5 days of a school week, so 18x5= 90 minutes, which equals to an hour and 30 minutes, less than 2 hours in one week.