Lori rode her bicycle 19.5 miles in 3 hours. Which gives the best estimate of how far Lori road in 1 hour?

Answers

Answer 1

Answer: Lori rode her bicycle 19.5 miles in 3 hours.
let's estimate how far Lori road in 1 hour.
=> 19.5 miles in 3 hours = 19.5 to be divided by 3 hours
=> 19.5 / 3 = 6.5
Estimate
=> 20 / 3 / = 6.7

Answer 2

Answer:

Answer:

6.7, i am trying to help but i am bad at math so if u get it wrong look at a pro answer

Step-by-step explanation:

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A fair coin is tossed 10 times. The coin lands heads up all 10 times.

What is the probability that it will land heads up on the next toss?

Answers

it would be 50% if it is a fair coin

What is the multiplicative inverse of 6 + 2i?

Answers

The product of a number and it multiplicative inverse is 1. Let the multiplicative inverse of 6 + 2i be x. Then
x(6 + 2i) = 1
x = 1/(6 + 2i) = (6 - 2i)/(6 + 2i)(6 - 2i) = (6 - 2i)/(36 - 12i + 12i + 4) = (6 - 2i)/40

We have to multiply (6 + 2i) with its conjugate:
(6 + 2i) (6 - 2i) = 36-12i+12i-4i^2
As i^2= -1 . So ,
= 36+4
= 40
So 40 +is the correct answer.

Andrew has a new 3 ft wide bookcase with two shelves, each 15 in. in high. he plans to store his CD’s on the shelves, using new CD racks. Each CD rack is 17 in. wide and 7 in. high, and holds three stacks of 12 CDsWill Andrew have enough room for his 250 CD’s in the bookcase if he uses the two shelves inside the book case it doesn’t put any CDs on top of it? how many CDs will he be able to store?

Answers

Answer: He will not have enough room

Step-by-step explanation: To determine if Andrew has enough room for his 250 CDs on the two shelves inside the bookcase, we need to calculate how many CD racks can fit on each shelf and how many CDs each of these racks can hold.

The bookcase is 3 ft wide, which is equivalent to 36 inches. Each shelf is 15 inches high. Therefore, the available space for CD racks on each shelf is 36 inches in width and 15 inches in height.

Each CD rack is 17 inches wide and 7 inches high. To calculate how many racks can fit on each shelf, we can use the following formula:

Number of racks on a shelf = (Width of shelf) / (Width of CD rack)

Number of racks on a shelf = 36 inches / 17 inches ≈ 2.12 (round down to 2, as you can't have a fraction of a rack)

Now, let's calculate how many CDs each of these racks can hold. Each CD rack can hold three stacks of 12 CDs each, for a total of 3 x 12 = 36 CDs.

So, on each shelf, Andrew can fit 2 CD racks, and each rack can hold 36 CDs. Therefore, each shelf can store 2 x 36 = 72 CDs.

Since Andrew has two shelves, he can store a total of 2 x 72 = 144 CDs in the bookcase.

So, he will be able to store 144 CDs in the bookcase, which is less than his 250 CDs. Therefore, he won't have enough room for all his 250 CDs in the bookcase, and he will need additional storage for the remaining CDs.

Larissa rolls to number cubes each with the numbers one through six. Larissa adds the numbers that appear on the role. Which 2 sums have an equal chance of occurring?3 and 11
4 and 7
5 and 8
Or
6 and 9

Answers

Answer:

5 and 8 i think

Step-by-step explanation:

sorry if you get it wrong

Using mapping notation to describe a translation up 8 units

Answers

I really don't understand, can you show any more information?

I need help with this please. I need this to pass.

Answers

1.
consecutive odd intergers are 2 apart from each other
x and x+2
they add up to 108
x+x+2=108
subtract 2
2x=106
divide by 2
x=53
add 2 since larger is x+2
53+2=55
larger=55
larger number is 55

2.
3 consecutive odd integers are 2 apart from each other
so we have
x,x+2,x+4
smallest number would be x so
they add up to -75
x+x+2+x+4=-75
ad like termss
3x+6=-75
subtract 6
3x=-81
divide by 3
x=-27
smallest number is -27 (smaller is to the left of other numbers)

3.
2 consecutive even is 2 away from each other
x and x+2
the add up to 26
x+x+2=26
subtract 2
2x=24
divide by 2
x=12
lareger number is x+2
12+2=14
answer is 14

4.
2 consecutive even is 2 away from each other
x and x+2
the add up to 54
x+x+2=54
subtract 2
x+x=52
divide by 2
x=26
smaller number is 26

5.
3 consecutive even is 2 away from each other
x and x+2 and x+4
the add up to -222
x+x+2+x+4=-222
add like terms
3x+6=-222
subtract 6
3x=-228
divide by 3
x=-76
find the others
x+2 and x+4
-76+2=-74
-76+4=-72
-72 is closses to zero
-72 is answer

ANSWERS:
1. 55
2. -27
3. 14
4. 26
5. -72

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