Mathematics, 15.04.2020 22:25 malikvanison

Z varies jointly with x and y. When x=7 and y=2, z=28.
Find z when x=6 and y=4

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 17:00, YwnDerek

Which inequality comparing two of the expressions is true when 0.7 < x < 0.9

Answers: 1

continue

Mathematics, 21.06.2019 19:00, notsosmart249

The focus of parabola is (-4, -5), and its directrix is y= -1. fill in the missing terms and signs in parabolas equation in standard form

Answers: 1

continue

Mathematics, 21.06.2019 19:30, apere655

Ascientist wants to use a model to present the results of his detailed scientific investigation. why would a model be useful? a )because the model makes the concepts easier to understand b) because the model is easy to put together and to use c) because the model prevents other scientists from asking questions d) because the model requires the audience to pay full attention to it i don't know what to choose because between a and d a is much more likely than d because it only wants to get the attention of the audience. i'm confuse.

Answers: 1

continue

Mathematics, 21.06.2019 21:30, xaguilar

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?

Answers: 2

continue

You know the right answer?

Z varies jointly with x and y. When x=7 and y=2, z=28.
Find z when x=6 and y=4...