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3 years ago

A swimming class has 20 students. Only 8 students know how to dive off

Mathematics

1 answer:

Allisa [31]3 years ago

6 0

Answer: 40%

Step-by-step explanation:

To write 8/20 as a percent have to remember that 1 equal 100% and that what you need to do is just to multiply the number by 100 and add at the end symbol % . 8/20 * 100 = 0.4 * 100 = 40% And finally we have: 8/20 as a percent equals 40%

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Arks

luda_lava [24]

Answer:

EXPLAIN

Step-by-step explanation:

6 0

2 years ago

Katie can swim 3 laps in the pool on 6 minutes. How many minutes will it take her to swim 10 laps?

storchak [24]

3 laps : 6 minuets

6/3 = 2

3/3 = 1

1 lap : 2 minuets

1 * 10 = 10

2 * 10 = 20

10 laps : 20 minuets

8 0

3 years ago

Which expression is equivalent to 6+4.5(32f-14f)

vichka [17]

Answer:

$6 + 4.5(32f - 14f) = 6 + 81f$

Step-by-step explanation:

Let us apply the distributive property to find an equivalent expression for:

$6 + 4.5(32f - 14f)$

For all real numbers a, b, and c, the distributive property says that:

$a(b + c) = ab + ac$

We apply this property to get:

$6 + 4.5(32f - 14f) = 6 + 4.5 \times 32f + 4.5 \times - 14f$

$6 + 4.5(32f - 14f) = 6 + 144f - 63f$

We simplify the RHS to get:

$6 + 4.5(32f - 14f) = 6 + 81f$

8 0

3 years ago

Please can anyone help me on this question information below.

Delvig [45]

Answer:

a) 0.11

b) 60

Step-by-step explanation:

Total frequency:

12+35+11+23+7+12 = 100

P(3) = 11/100 = 0.11

P(6) = 12/100 = 0.12

Expected no. of sixes:

500 × 0.12 = 60

5 0

2 years ago

A curcular track is 1/4 completing each mile every 1/15 mile

dsp73

Answer:

s = 3.75 miles/hour

Step-by-step explanation:

Distance covered = 1/4 of a mile

Time taken = 1/15 of an hour

We need to find the speed of the track. We know that,

$s=\dfrac{d}{t}\\\\=\dfrac{\dfrac{1}{4}}{\dfrac{1}{15}}\\\\=3.75\ mi/h$

So, the required speed is 3.75 miles/hour.

4 0

2 years ago