reasoning: if you know that 9 x 20 = 180, how can you use this to find 9 x 24? explain your strategy.

Answers

Answer 1

Answer: 9 * 20 = 180

24 has 4 more than that, so multiply 9 to 4 and add it to 180.

9 * 4 = 36

180 + 36 = 216

So 9 * 24 = 216

Answer 2

Answer: 9 × 24 = 9 × ( 20 + 4 ) = 9 × 20 + 9 × 4 = 180 + 36 = 216 ;

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Audrey drove 200 miles in 3.5 hours. Which equation can be used to find the rate "r" at which Audrey was traveling? (A) 200=3.5r (B) 200x3.5=r (C) r/3.5=200 (D) 200r=3.5

Choose the kind or kinds of symmetry the following figure

Answers

Answer:

i) Line

ii) point

Step-by-step explanation:

Given is a number 3. We have to find the kind or kinds of symmetry

On seeing 3, we find that no vertical line can divide 3 into exactly two symmetrical figures.

But if we draw a horizontal line in the middle of 3, we get two symmetrical figures up and down the line.

Hence i) symmetric about a line

Next is imaging the middle of 3 end point.

At that point we find that the figure is symmetrical on all sides of the point

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Alex bought twice as many pears as apples. He bought 4 more pears than oranges. He bought 6 apples. How many oranges did Alex buy?

Answers

Alex bought 8 oranges. Since he bought six apples and he bought twice as many pears as apples, he bought 12 pears. since he bought 4 more pears than oranges , you subtract 4 from 12, which gives you 8.

He bought twice as many pears as apples. We can say this as he bought 2 times more pears than Apples. Now that can be said as 2 times # of apples= # of pears. He also bought 4 more pears than oranges. So he bought #of oranges +4=#of pears. If he bought 6 apples he bought 2*6 pears and so he bought 12 pears. Now since he bought 4 more pears than oranges then all we do is the opposite which is 12-4=oranges.
He bought 6 apples, 8 oranges, and 12 pears.

Maggie has 7 tiles with pictures of plants and 2 tiles with pictures of animals. Maggie keeps all the tiles on a mat with the pictures hidden and mixes them up. She then turns one tile face up and finds the picture of a plant on it. She removes this tile from the mat and turns over another tile without looking. What is the probability that the second tile that Maggie turns over has a plant on it?

Answers

Answer:

$(3)/(4)$

Step-by-step explanation:

We are given that Maggie has 7 tiles with pictures of plants and 2 tiles with pictures of animals .

Number of tiles with picture of plants =7

Number of tiles with picture of animals =2

Total number of tiles =7+2=9

We have to find the probability that the second tile that Maggie turns over has plant on it .

When she removes one tile of picture of plant then she has number of tiles of picture of plants =6

Total number of tiles =8

Probability,P(E)= $(Number\;of\;favorable\;cases)/(Total\;number\;of\;cases)$

Using the formula then we get

The probability that she finds tile of picture of plant = $(6)/(8)=(3)/(4)$

Answer:6/8 - - - - simplified 3/4

Step-by-step explanation: removing the tile she just flipped over would be 6 plants and 2 animals so there would be 8 total tiles and you would putt the remaining tiles over it like so 6/8 meaning out of the remaining 8 tiles 6 of them are plants giving her a 6 in 8 chance or a 3 in 4 chance

Determine whether the given point lies on the graph of the inequality. (-1,-3); -x-6y < 19.

in this case, is the point on the graph (yes or no)

Answers

-x - 6y < 19.

Point ( -1, -3) ⇔ x = -1 , y = -3
instead of the variables you need to put the values of x and y ( coordinates of the point )
- (-1) - 6*(-3) < 19

we calculate

1 + 18 < 19 record turns mushy

Proposal
the point does not belong to the graph

Jeff said his city got 11/3 inches of snow Write this fraction as a mixed number

Answers

3 goes into 11 three times, so your whole will be 3. Now to figure out the leftover, you'll have to find out how many thirds is 3 whole. 3*3=9, so 3 whole is 9 thirds. 11-9=2, so the fraction will be 2/3. And you add them together to get
3 2/3. Hope it helped!

david spent 2/5 of his money on a storybook. The storybook cost $20. How much money did he have at first

Answers

If the storybook cost $20, and it was also 2/5 of his money, then 2/5 of his money is $20. In other words:
2x/5 =20.

Multiplying both sides by 5, we get:
2x = 100.

If we divide both sides by 2, then we're left with:
x = 50.

David had $50 at first.

50 dallors hope this help

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