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mina [271]
3 years ago
8

If i bike travels 15m in 2 sec, what is its speen in km/h?

Mathematics
2 answers:
Alla [95]3 years ago
5 0

9514 1404 393

Answer:

  27 km/h

Step-by-step explanation:

(15 m)/(2 s) = (15 m)/(2 s)×(1 km)/(1000 m)×(3600 s)/(1 h)

  = (15×1×3600)/(2×1000×1) km/h = 15×1.8 km/h = 27 km/h

shutvik [7]3 years ago
3 0

Answer:

x=27 km

Step-by-step explanation:

Make an equation 2/.015=3600/x

Multiply 3600 by .015 to get 54

Divide 54 by 2 to get 27.

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There is a jar of jellybeans on Mr. Schidrich's desk. 40% of the jellybeans are red. If
pantera1 [17]

Answer:

22 Red Jellybeans

Step-by-step explanation:

Out of the 55 jellybeans in the jar, 40% of them are red, which means you have to do 40% of 55 to see which ones are red. We know 10% of 55 is 5.5, then multiply 5.5 x 4 to get 22 is 40% of 50 hope this helped :)

5 0
3 years ago
What is the value of f(7)
Lelu [443]

Answer:

7<em><u>f</u></em>

Step-by-step explanation:

You move 7 to the left of <em>f. </em>

This makes the exact value of <em>f</em>(7),  7<em>f</em>.

8 0
3 years ago
Solve the inequality.<br> 5x - 7 &lt; 8x + 8<br> The solution set is x |
timofeeve [1]

Answer:

- 5 < x

Step-by-step explanation:

To solve, we need to isolate the variable: x

5x - 7 < 8x + 8

Subtract 5x from both sides

5x -  5x -7 < 8x -5x + 8

- 7 < 3x + 8

Subtract 8 from both sides

- 7 -8 < 3x + 8 -8

-15< 3x

Divide both sides by 3

- 15/3< 3x/3

- 5 < x

5 0
3 years ago
Read 2 more answers
Simply the expression 7y+4x+4-2x+8
lisabon 2012 [21]
Simplified: 2x+ 7y + 12
3 0
3 years ago
The sum of two and three times the difference of a number and five is equal to four times the difference a number and one.
Andru [333]

Answer:

x=-9

Step-by-step explanation:

We translate the phrase into an equation:

2+3(x-5)=4(x-1)\\

Then we simplify:

2+3(x-5)=4(x-1)\\2+3x-15=4x-4\\-13+3x=4x-4\\-9=x

4 0
2 years ago
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