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3 years ago

I NEED HELP PLEASEAND STEPS

Mathematics

1 answer:

Ratling [72]3 years ago

6 0

Answer:

2 17/20

Step-by-step explanation:

1 7/10+1 1/2=1 7/10+1 10/20=2 17/20

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Write an expression for each phrase

Svetradugi [14.3K]

1. 9 + k - 19

2. 6.7n

3. 37t - 9.85

5. 15 + $\frac{60}{w}$

6. 7 - 3v

7. $5m - \frac{t}{7}$

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2 years ago

what number become double when you divide by itself and become its half when you multiply it by itself

Anastasy [175]

Answer:

1/2

Step-by-step explanation:

1/2 times 1/2 equals .25 (.25 is 1/4 which is half of 1/2)

1/2 divided by 1/2 is 1( 1 is 1/2 plus 1/2)

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3 years ago

Suppose you have the following recursion formula a1 = 1, a2 = 2, and an = a(n - 1)+ a(n - 2) for integers n ≥ 3. How would you d

Firlakuza [10]

$\left\{\begin{array}{ccc}a_1=1\\a_2=2\\a_n=a_{n-1}+a_{n-2}&for\ n\geq3\end{array}\right\\\\a_3=a_{3-1}+a_{3-2}=a_2+a_1\to a_3=2+1=3\\\\a_4=a_{4-1}+a_{4-2}=a_3+a_2\to a_4=3+2=5\\\\a_5=a_{5-1}+a_{5-2}=a_4+a_3\to a_5=5+3=8\\\vdots$

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3 years ago

Slope -4 passing through the point (5,3).

bonufazy [111]

A negative slope means the line would be going downward, so you would go down first (instead of up as with a positive slope), then over right.

Therefore, you would go down 4 (or negative 4 considering you are going down) and right 1.

Rise over run still applies here. Rise over run is a fancy way of saying to put the number (or slope) in fraction form.

-4 as a fraction would be -4/1.

So start at (5,3), go down 4 and over 1, repeatedly and you got it.

**Just remember the rise over run can be confusing with negative slopes.**

5 0

3 years ago

£99 is shared in the ratio 6 : 5 What is the larger share?

nordsb [41]

Answer:

Step-by-step explanation:

6x + 5x = 99

11x = 99

x=99/11

x=9

6x = 6x9 = 54

5x = 5x9 = 45

ans: 54

4 0

3 years ago