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2 years ago

A three-digit lottery ticket using the numbers 0 to 9 has how many possible combinations?

Mathematics

2 answers:

aleksley [76]2 years ago

8 0

Answer:

there are 720 possible answers

Step-by-step explanation:

(10 choices) on the first, then the second (9 choices) then the third (8 choices). So there would be 10 x 9 x 8 = 720 possible choices.

igor_vitrenko [27]2 years ago

7 0

Answer:

720

Step-by-step explanation:

If order mattered, we would say select the first number (10 choices), then the second (9 choices) then the third (8 choices). So there would be 10 x 9 x 8 = 720 possible choices.

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Alina spent no more than $45 on gas for a road trip. The first gas station she used charged $3.50 per gallon and the second gas

Paraphin [41]

Answer: 3.50x + 4.00y ≤ 45

0 < y < 11.25

<u>Step-by-step explanation:</u>

$3.50x + 4.00y \leq 45\\\\\\\text{Subtract 3.50x from both sides:}\\4.00y\leq -3.50x+45\\\\\\\text{Divide everything by 4.00 (to isolate y):}\\\dfrac{4.00y}{4.00}\leq \dfrac{-3.50x}{4.00}+\dfrac{45}{4.00}\\\\\\y\leq-0.875x+11.25\\\\\\\text{Both x and y must be greater than zero, so:}\\0$

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3 years ago

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A building contractor is to dig a foundation 30 feet long, 12 feet wide, and 6 feet deep. The contractor pays $20 per load fo

kogti [31]

Answer:

$1800

Step-by-step explanation:

Volume of the foundation: 30*12*6 = 2160 cubic feet

we need to convert this into yards because a truckload is 8 cubic yards, 2160/3 = 720 cubic yd

One truckload is 8 cubic yards

# of truckloads needed: 720/8 = 90 truckloads

Cost: $20*90 = $1800

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2 years ago

The ____ are two straight dotted lines, one horizontal and one vertical.

Airida [17]

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3 years ago

Please help me!!!!! Show your work 45-45-90 method <3

aivan3 [116]

Answer:

hope it helps and u understand

check the steps in picture attached

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Jose earns $400 during the summer. He deposits it in an account that pays simple interest at a rate of 3% per year. Which equati

a_sh-v [17]

Answer:

Step-by-step explanation:

Since this is simple interest the equation will be P*T*R=I T=time which is 1 year. P=money invested or borrowed (aka princable) which is 400$. R=Annual rate is 3% per year and I= Interest after the number of years (aka answer) Hope this helps :)

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3 years ago

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