Ineed with multi step inequalities

answer:

522750

step-by-step explanation:

given that for the new lenses which mozart lenses inc. introduced is 246 out of 800

i.e. sample proportion = no of persons who said would purchase/total people surveyed

=

it can be estimated that since this is a random sample, this will give an estimate for the proportion of full lenses users for the year

total people who purchase eyeglasses in a year = 1700000

out of those, persons expected to purchsae new lenses =

annual sales potential for new lenses = 522,750

answer:

a = 8f - 48

a = amount left

f= coworkers

answer:

4/11

step-by-step explanation:

(6-2)/(4+7)

= 4/11

answer:

hypotenuse = 42.5

step-by-step explanation:

let the longer leg be x then the hypotenuse is x + 5 ( 5 more than longer leg )

using pythagoras' identity, then

(x + 5)² = 20² + x² ← expand left side

x² + 10x + 25 = 400 + x² ( subtract x² from both sides )

10x + 25 = 400 ( subtract 25 from both sides )

10x = 375 ( divide both sides by 10 )

x = 37.5 ← longer leg, thus

hypotenuse = 37.5 + 5 = 42.5