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Ierofanga [76]
2 years ago
12

runs 5 laps in 30 minutes, denise runs 4 laps in 20 minutes, paola runs 6 laps in 40 minutes. if they run at a constant rate, wh

o is the fastest runner?
Mathematics
1 answer:
asambeis [7]2 years ago
3 0
Denise is the fastest runner. 40 divided by 6 is 6.666 repeating 30 divided by 5 is 6 and 20 divided by 4 is 5 therefore denise is fastest
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105.25 x 70.75<br><br><br> NO LINKS!!!!!
Anarel [89]

Answer:

7446.4375

Step-by-step explanation:

  105.25

x   70.75

-------------

 52625

First, we will want to start with the hundredths place. multiply 5×5. We get 25. Put the 5 down and carry the 2 above 2 in 105.25. Next, we multiply 2 in 105.25 with 5 in 70.75. 2×5 is 10, then we add the carried 2, and 10+2 is 12. We put the 2 down below, and carry the 1 above 5 in 105.25. Next, we multiply the 5 in 105.25 times 5. 5×5 is 25. We then need to add the carried 1 to 25 to get 26. We put the 6 down and put the 2 over 0 in 105.25. Next, we multiply 0 in 105.25 with 5 in 70.75. 0×5 is 0, plus our carried 2 from before, so 2. We don't need to carry anything since it's only the ones digit, so we put the 0 down. Next, we multiply the 1 in 105.25 with 5 again in 70.75. 1×5=5. Since we have no carries we can put the 5 down without adding anything. If this seemed confusing, let me simplify it for you. You basically start with the bottom number's "digit". For us, that's 70.75, and 5 would be the "digit." (The last digit from the bottom number.) We then multiply this "digit" by every number from the top number's digits. For example, we'd multiply 70.75's 5, with 105.25's 5 first, then continue on going left from there. I hope this helped! If it just confused you more please let me know.  (Also remember to put a 0 when you start multiplying with your second digit on the bottom number)

3 0
2 years ago
Is 1/5 bigger or smaller than 1/6
MAXImum [283]
You can tell if you make the denominators the same easiest one is 30 for 6 and 5
1/5=6/30
1/6=5/30

now you can see which is bigger
4 0
3 years ago
Given you or a person holding a kite string 100 feet long write and draw what the height or altitude the kite is off the ground
Salsk061 [2.6K]

Answer: 75.47\ ft

Step-by-step explanation:

Given

String of the kite is l=100\ ft

Angle of elevation \theta=49^{\circ}

suppose altitude of the kite is h

from the figure, we can write

\Rightarrow \sin 49^{\circ}=\dfrac{h}{100}\\\\\Rightarrow h=100\sin 49^{\circ}\\\\\Rightarrow h=75.47\ ft

Thus, the altitude of the kite is 75.47\ ft

8 0
3 years ago
A triangle with a height of 5cm and a base length of 12cm what is the perimeter
Lisa [10]

Answer: 5+5+12+12

Step-by-step explanation:

7 0
3 years ago
Find the volume of a ball with a radius of 7cm.
vichka [17]

Answer:

Use the formula V = 4/3pi r^3

Substitute r for 7 cm

Step-by-step explanation:

6 0
2 years ago
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