Okay so 0.4 is equal to 4/10 (hopefully you know that!) & anything over 1 is itself so i would but 64 over 1.

so now you hace 2 fractions & when dicing fractions you alwas flip the second fraction upside down & then just multiply across.

so if you have
64 4
---- / ----
1 10

you would switch the 2nd one so the 10 would be on top.

so that would give you 64*10 over 1*4

which equals 640/4

& when you simplify that you get 160

so that's your answer(:

7 0

3 years ago

Please help me i need it in fast please?

skelet666 [1.2K]

You can see that every time you increase x by 2, the correspondent y value is increased by 7.

This is the behaviour of linear function: the ratio between changes in x and y values, the so-called "rise over run" ratio, is constant.

5 0

3 years ago

Read 2 more answers

3.) AI 65 kom hr. Alfred can reach home in 50 minutes. At what speed should he drive his car

Yanka [14]

Answer:

He should drive his car at a speed of 81.25 kilometers per hour.

Step-by-step explanation:

With a velocity of 65 kilometers per hour, he reaches home in 50 minutes. What speed he needs to reach home 10 minutes earlier, that is, in 50 - 10 = 40 minutes?

To solve this, we use the relation between inverse proportion variables(as the velocity increases, time needed decreases), that is, a rule of three with line multiplication, instead of cross. So

65 kilometers per hour - 50 minutes

x kilometers per hour - 40 minutes

$40x = 65*50$

$x = \frac{65*50}{40}$

$x = 81.25$

He should drive his car at a speed of 81.25 kilometers per hour.

8 0

3 years ago