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Svet_ta [14]
3 years ago
9

Can someone please help me out

Mathematics
1 answer:
Tresset [83]3 years ago
5 0
First substitute the given numbers with variables
7r-15/s = 7(3)-15/5
Then solve
7(3)-15/5 = 21-3= 18
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Find the probability of throwing a sum of 10 at least 9 times in 10 throws of a pair of fair dice.
jekas [21]
So the possible ways of throwing a sum of 10 is 4&6, 5&5, 6&4. All possible ways of throwing a pair of dice equal 36, so divide 3 by 36. Then, divide this number by 9 to get the possibility of it being at least 9 times, because the last throw doesn't affect it.
5 0
4 years ago
A truck can travel 1200 miles on 80 gallons of gasoline. how far can it travel on 240 gallons of gasoline ? Show your work
pogonyaev

Answer:

3600 miles on 240 gal

Step-by-step explanation:

80 gal can go 1200

160 gal can go 2400

240 gal can go 3600

7 0
3 years ago
Read 2 more answers
Guys help plz and I will give brainliest
rewona [7]

Answer:

add 12 for all sides I think

Step-by-step explanation:

but if 12 yd is on both sides you must add 12+12 and the after getting the answer add then with 12+12

4 0
3 years ago
yesterday, Jack drove 40 1/2 miles. he used 1 1/4 gallons of gasoline. What is the unit rate for miles per gallons
Amanda [17]


From the information we have, Jack drove 401/2 miles and used a total of 1 1/4 gallons of gasoline.

We need to find out how many miles he travelled  per each gallon.

40 1/2 miles can be written as 40.5 miles

1 1/4 gallons  can be written as 1.25 gallons.

So now we form an equation.

40.5 = 1.25

   x = 1

Where x is the number of miles per gallon

We cross multiply the equation

40.5 * 1 = 1.25 * x


40.5 = 1.25x

40.5 / 1.25  = x

 32.4 = x

x = 32 .4

So the unit rate for miles per gallons is 32.4 miles per gallon


3 0
4 years ago
Mark sold x pens for $2 each. He received less than $80 from the sale. a. Write an inequality for the number of pens sold.
Ganezh [65]

Answer:

x <40

Step-by-step explanation:

The income from the pens is 2*x

He made less than 80

2x <80

Divide each side by 2

2x/2 < 80/2

x < 40

7 0
3 years ago
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