Y varies inversely with x. When x = 3 then y = 5. Find the value of x when y = 21

Mathematics

1 answer:

alexgriva [62]2 years ago

7 0

Answer:

y=1/x
y=k/x
k=yx
given x=3,y=5
k=5×3=15
when y=21
x=k/y
x=15/21=0.7143ans

You might be interested in

Which is bigger 1.63m or 1.6m

andrew-mc [135]

Answer:

1.63

HOPE THIS WILL HELP..............!

3 0

3 years ago

Please help... I don't understand this

vlada-n [284]

We know that

the rotation of a solid does not modify the values of the internal angles of the solid
therefore
interior angle after 90° rotation=interior angle before 90° rotation
interior angle after 90° rotation=108°

the answer is the option D 108 °

6 0

3 years ago

Divide the fractions and simplify the answer 60 / 2 2/3

balu736 [363]

2 2/3 as a decimal is 2.66666667. 60 divided by 2.66666667 is 22.5.
As a fraction, the answer will be 22 5/10

Please mark my answer as the brainliest answer, I'd really appreciate it, thanks!

6 0

2 years ago

Read 2 more answers

A 20-ounce bag of potato chips costs $3.80. What is the unit rate of the chips?

melisa1 [442]

To find the unit rate you would need to find the cost per ounce of potato chips. To find this you would simply divide. $3.80/20 = .19

So the unit rate in your question is $0.19

Hope this helps! :)

3 0

3 years ago

PLEASE HELP ITS DUE TODAY URGENT!

vlada-n [284]

Step-by-step explanation:

7. ∆ABC = ∆ILH by SSS

as, AB = IL , BC = LH , CA = HI

8. ∆DEF = ∆AMS by ASA

as , angle D = angle A, EF = MS , angle F = Angle S

9. ∆JKL = ∆HAT by SAS

as, JK = HA , KL = AT , angle L = angle T

10. ∆ABC = ∆KPG by ASA

as , CA = GK, Angle c = angle G and Angle B = angle P

11. ∆ABC = ∆YDE by ASA

as , angle A = angle Y, AB = YD , angle B = angle D

12. ∆MNO = ∆SAK by ASA

as , Angle M = angle S, NO = AK, angle O = angle K

hope this answer helps you dear...and may u have a great day ahead!

7 0

3 years ago