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3 years ago

Kelly shows all the ways to make 49 as tens and ones. What ways does she show?

Mathematics

2 answers:

Tcecarenko [31]3 years ago

7 0

4 tens and 9 ones 3 tens and 19 ones 2 tens and 29 ones 1 ten and 39 ones HOPE THIS HELPS

ahrayia [7]3 years ago

5 0

There are a bunch of ways to do it but a couple would be 4 tens and 9 ones, or 49 ones. I hope this was helpful.

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2x - 3y = -5 5x - 22 = -4y Solve In Multiplication Method

Nimfa-mama [501]

Answer:

(2, 3 )

Step-by-step explanation:

Given the 2 equations

2x - 3y = - 5 → (1)

5x + 4y = 22 → (2) [ rearranged equation ]

Multiplying (1) by 4 and (2) by 3 and adding will eliminate the term in y

8x - 12y = - 20 → (3)

15x + 12y = 66 → (4)

Add (3) and (4) term by term to eliminate y, that is

23x = 46 ( divide both sides by 23 )

x = 2

Substitute x = 2 in either of the 2 equations and evaluate for y

Substituting into (2)

5)2) + 4y = 22

10 + 4y = 22 ( subtract 10 from both sides )

4y = 12 ( divide both sides by 4 )

y = 3

Solution is (2, 3 )

4 0

3 years ago

Part 1: How's the weather? A. Investigate the weather forecast in your city. Record the high and low temperatures that are forec

victus00 [196]

Using the mean concept, it is found that:

1. The mean change in the forecasted high temperatures is of -0.33ºC.

2. The mean change in the forecasted low temperatures is of 0.5ºC.

-----------------------------

The mean of data-set is given by the sum of all observations divided by the number of observations.

Item 1:

The changes in the high temperature are: 2, 1, -1, -1, -1, -2

Thus:

$M = \frac{2 + 1 - 1 - 1 - 1 - 2}{6} = -0.33$

The mean change in the forecasted high temperatures is of -0.33ºC.

Item 2:

The changes in the low temperature are: 2, -2, 2, 1, 0, 0.

$M = \frac{2 - 2 + 2 + 1 + 0 + 0}{6} = 0.5$

The mean change in the forecasted low temperatures is of 0.5ºC.

A similar problem is given at brainly.com/question/24754716

3 0

2 years ago

Mary wants to fill in a cylinder vase.At the flower store they told her that the vase should be filled 3/4 for the flowers to la

borishaifa [10]

Answer:

Approximately 377 cubic inches of water.

Step-by-step explanation:

We know that Mary wants to fill in a cylinder vase and she was told that the vase should be filled 3/4 for the flowers to last the longest. We are to find how much water should she pour into the vase.

So first, we will find the height of the water:

$=\frac{3}{4} *10=7.5$ inches

Then, find the volume of the water of this height:

$Volume = \pi *4^2*7.5 = 376.9$

Therefore, Marry should pour approximately 377 cubic inches of water.

6 0

3 years ago

28=-4 (2x+7) what does x equal

Alecsey [184]

Well first lets do the distributive property so the left side is already done 28, now the right side -4 (2x+7) when you do that you get -8x-28. So now we have 28=-8x-28. So now I would move the -28 to the left side and when you move stuff to the other side you change the sign so the sign will be positive 28+28 which is 56. Now you have 56=-8x. Now divide both side by -8 to have -7=x

Your Answer: x = -7

5 0

3 years ago

What is the sum? StartFraction 3 Over x squared minus 9 EndFraction + StartFraction 5 Over x + 3 EndFraction

Karolina [17]

Answer:

The answer is:

$\frac{5 x - 12}{(x + 3)(x - 3)}$