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Gnoma [55]
4 years ago
7

Think about using decimal models to show 6.84. If you only used tents, what place would you not be able to model? How many tenth

s would you use to model the other two places?
Mathematics
2 answers:
bija089 [108]4 years ago
5 0
You would only model 8 tents

dlinn [17]4 years ago
4 0

Answer:

If we only use tenths, then we wont be able to model the hundredths place value that is the value of 4 in the given decimal.

Step-by-step explanation:

We are given the number 6.84

The place value chart for this number can be written as:

Place value:        Ones  .  Tenths  Hundredths

          6.84:             6     .       8               4

The decimal expansion can be written as:

6.84 = 6\times 1 + 8\times \displaystyle\frac{1}{10} + 4\times \displaystyle\frac{1}{100}

If we only use tenths, then we wont be able to model the hundredths place value that is the value of 4 in the given decimal.

To model 4 that is 0.04, we need

\displaystyle\frac{1}{10}\times \displaystyle\frac{1}{10}\times 4 = 0.04

To model 6, we need

10\times \displaystyle\frac{1}{10}\times 6 = 6

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184.73

Step-by-step explanation:

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3 0
2 years ago
One number is larger than another by 9. If the greater number is increased by 10, and the lesser number is tripled, the sum of t
kkurt [141]

Answer:

The larger number is -6, the smaller number is -15

Step-by-step explanation:

We have two numbers, a and b.

We know that one number is larger than another by 9.

Then we can write:

a = b + 9

then a is larger than b by 9 units.

If the greater number is increased by 10 (a + 10) and the lesser number is tripled (3*b), the sum of the two would be -41:

(a + 10) + 3*b = -41

So we got two equations:

a = b + 9

(a + 10) + 3*b = -41

This is a system of equations.

One way to solve this is first isolate one variable in one of the two equations:

But we can see that the variable "a" is already isolated in the first equation, so we have:

a = b + 9

now we can replace that in the other equation:

(a + 10) + 3*b = -41

(b + 9) + 10 + 3*b = -41

now we can solve this for b.

9 + b + 10 + 3b = -41

(9 + 10) + (3b + b) = -41

19 + 4b = -41

4b = -41 -19 = -60

b = -60/4 = -15

b = -15

then:

a = b + 9

a = -15 + 9 = -6

a = -6

7 0
2 years ago
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Answer:

No

Step-by-step explanation:

She worked at an average of 9.6 pages per hour. 47-23=24 pages 24 pg/2.5 hours= 9.6 pages per hour.

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For the first question: The equation would be set up as 30=1/2(12x) Then solve for x. (Or just plug that formula into Desmos)

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If Rob Stone had 2 phones and He gave 1 away how many phones he got left
Neporo4naja [7]

Answer:

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Step-by-step explanation:

4 0
3 years ago
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