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stiks02 [169]
4 years ago
10

There are 20 people competing in a contest, first place earns $100, second place earns $50 and third place earns $25. how many w

ays can the three winners be selected?
Mathematics
1 answer:
Tresset [83]4 years ago
7 0
20*19*18, or 6840 ways
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Write 21/4 as a decimal. Round to three decimal places
Nadusha1986 [10]

5.250

To change a fraction to a decimal fraction divide the numerator by the denominator.

that is 21 ÷ 4 = 5.250 ( to 3 decimal places )


5 0
3 years ago
Read 2 more answers
Can someone please help me
Bad White [126]

Answer:

<h2>L.A. = 384 cm²</h2><h2>S.A. = 640 cm²</h2>

Step-by-step explanation:

Lateral Area:

We have four congruent triangles with base b = 16cm and height h = 12cm.

The formula of an area of a traingle:

A_\triangle=\dfrac{bh}{2}

Substitute:

A_\triangle=\dfrac{(16)(12)}{2}=(8)(12)=96\ cm^2

L.A.=4A_\triangle=4(96)=384\ cm^2

Surface Area:

S.A.=B+L.A.

In the base we have the square with side s = 16cm. The formula of an area of a square:

A_\square=s^2

Substitute:

B=16^2=256\ cm^2

S.A.=256\ cm^2+384\ cm^2=640\ cm^2

4 0
3 years ago
PLEASE HELP ME !!!!!!
Jet001 [13]
It is the first graph. the equation can be estimated out to be close to 48,000 but still more than it. the line starts up above 48,000 so that is the most logical answer

6 0
3 years ago
How many yards are in 2 ½ miles if there are 5280 feet in one mile?
Alisiya [41]
A yard is equal to 3 feet. So knowing this we multiply 5280 which is how many feet are in a mile by 2.5 that is the miles we will take into consideration.
5280 x 2.5= 13,200
Now this value we divide it by 3 which is how long a yard is in terms of ft measurement.
\frac{13200}{3}  = 4400 \: yards
4 0
3 years ago
David records the number of visitors to the snake exhibit each day's for 6 days . His data are shown in the table . If admission
harkovskaia [24]
6-7+66:&$$+&$;$&+_#+&__9+#--$_
5 0
3 years ago
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