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3 years ago

Jimmy runs 2 miles monday 1.2 miles tuesday and 4.75 miles on friday.what is the total number of miles jimmy ran for three days?

Mathematics

1 answer:

ad-work [718]3 years ago

6 0

Sent a picture of the solution to the problem (s).

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Plzzzzzzzz! A suitcase lock has a code 4 symbols long. The symbols on the lock are a star, a square, a circle, a triangle, a lin

34kurt

Answer:

$\dfrac{1}{30}$

Step-by-step explanation:

6 symbols and 4-symbol code so number of combinations wich doesn't contain the same symbol twice would be:

6•5•4•3 = 360

If code starts with a star followed by triangle that means only one posibility for first two symbols and code doesn't containing the same symbol twice means that left 4 symbols for next two.

So number of combinations of code starting with a star followed by triangle and doesn't containing the same symbol twice will be:

1•1•4•3 = 12

The probability that a randomly chosen code starts with a star followed by triangle and doesn't contain the same symbol twice:

$\dfrac{1\cdot1\cdot4\cdot3}{6\cdot5\cdot4\cdot3}=\dfrac{1\cdot1}{6\cdot5}=\dfrac{1}{30}$

7 0

3 years ago

Penny and Kenny have the same number of football cards.

Pachacha [2.7K]

Hello,
Penny==>a*10 (a is an integer)
Kenny==>b*18 (b is an integer)

a*10=b*18==>a=9*b/5 ==>b=5+n*5
a=9*(5+5*n)/5=9*(1+n)=9+9n
If n=0 then a=9 and b=5 :Number od cards: 9*10=10, 5*18=90
if n=1 then a=19 and b=10: Number of cards: 19*10=190>100 to exclude.

So number of cards=90

7 0

2 years ago

Please help with solving this

gizmo_the_mogwai [7]

Answer:

x=-7

Step-by-step explanation:

5x-2x+1=3x-6-x first combine like terms

3x+1=2x-6 combine like terms by subtracting 2x from both sides

x+1=-6 subtract 1 from both sides

x=-7

4 0

2 years ago

Is this number prime or composite 70

liraira [26]

70 is a composite number because it can be divided by numbers other than one and itself.

6 0

2 years ago

What are the two solutions of the equation? x = StartRoot 5 EndRoot and x = negative StartRoot 5 EndRoot x = 3 + StartRoot 5 End

valentinak56 [21]

Answer:

x = 3 + StartRoot 5 EndRoot and x = 3 – StartRoot 5 EndRoot

Step-by-step explanation:

8 0

2 years ago

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