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3 years ago

At 12:45 Jimmy left his home in Pinetrees and cycled to visit his grandmother in Oakville. On his

Mathematics

1 answer:

olchik [2.2K]3 years ago

8 0

t=45min
d=4km

45min/60min = 0.75 hours

v=d/t
v=4km/0.75hours
v=5.33km/hour. So the answer is B. 45 minutes.

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Steve has 12 guppies. their population decreases by 3% each year .how many guppies will there be in one year?

Lubov Fominskaja [6]

Answer:

11 guppies

Step-by-step explanation:

6 0

3 years ago

Use the net to find the surface area of the prism

swat32

If we were to fold this into a prism, the rectangle on the left would be the base. The short sides of the triangles would fold to meet up with the 5 inch sides of the base. Then the rectangle on the right would fold down and fit between the two triangles, meeting up with the base. Visualizing the shape in 3 dimensions allows us to figure out the lengths of some sides. For example, the short sides of the triangles both equal 5 inches. Also, the long sides of the triangles equal 13 inches and the long side of the base is 8 inches.

The surface area is the area of all the surfaces.

8*5=40
8*12=96
2*(0.5*5*12)=60
13*8=104

Add these up..

40+96+60+104=300 in^2

4 0

4 years ago

I need help to do this dont know how to do!

Artyom0805 [142]

Answer:

Step-by-step explanation:

Even I need help with that

3 0

3 years ago

Use the results of exercises 18 and 19 to prove that given any two rational numbers r and s with r , s, there is another rationa

777dan777 [17]

Answer:

Step-by-step explanation:

Let r and s be two rational numbers

Without loss of generality assume that r<s, because one number has to be necessarily less than the other otherwise two would be equal.

Then find mid value of r and s as

$\frac{r+s}{2} =t$

So we have atleast one rational number between r and s. Note that t is rational because it is sum of two rational numbers r/2 and s/2

Now using r and t we find one rational number say u between r and t.

Again with r and u we find another rational number between them

This process can be repeated infinitely

Thus we conclude there are infinitely many rational numbers in between any two distinct rational numbers.

5 0

3 years ago

PLEASE HELP!<br><br> 0.8 + 0.3m + 0.6- 0.5m = 0.4<br><br> Show work! <3

Kruka [31]

0.8+0.3m+0.6-0.5m = 0.4

or, 1.4-0.2m=0.4

or, -0.2m = 0.4 - 1.4

or, -0.2m = -1

or, m = -1/-0.2 = 10/2 = 5

The answer is 5.

Please do mark me Brainliest.

3 0

3 years ago