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Mars2501 [29]
3 years ago
7

You need to find three numbers that come in quick succession in the order of numbers (ex. 1, 2 and 3) and which

Mathematics
1 answer:
eimsori [14]3 years ago
4 0

Answer:

set middle number=x

then left side number=x-1

and right side number=x+1

(x-1)+x+(x+1)=30

3x=30

x=10

x-1=9

x+1=11

numbers are 9,10,11

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In the 1996 presidential election, Bill Clinton and Bob Dole together received 538 electoral votes. Clinton received 220 more vo
Korvikt [17]

Answer:


Step-by-step explanation:

Bill + 220

Total is 538 so subtract 220 which gives you 318.

318/2 = 159

159+220 for Bill = 379

Bob has 159

Add 159 + 220 for Bill and 159 for bob = 538

So Bill has 379

and Bob has 159

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3 years ago
Robert wants to use all the ingredients listed in the table at the right to make trail mix. How many ½ -lb packages can he make?
lara31 [8.8K]

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16 half packages.

Step-by-step explanation:

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3 years ago
The sum of two numbers is 18 and their difference is 8
Volgvan

Answer:

13 and 5

Step-by-step explanation:

x+y=18

x-y=8

_____

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x=13

So the first number must be 13

13+y=18

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8 0
3 years ago
Read 2 more answers
Help me and you get 100 points and Brainliest
OlgaM077 [116]

hey someone else has already answered this!

a. To find the least squares regression equation for a group of (x,y) points:

Step 1: For each point(x,y), we need to calculate x² and xy first.

Step 2: Sum all x, y, x² and xy, which gives us Σx, Σy, Σx² and Σxy

Step 3: Calculate Slope m: m = (NΣxy − Σx Σy)/ N(Σx²) − (Σx)² , here N is the number of data.

Step 4: Calculate Intercept b: b = Σy − m(Σx)/ N

Step 5: Assemble the equation as y= mx+b

Here, we have ∑x = 120, ∑y= 1379, ∑x²= 919.5, ∑xy= 10466 and N= 16

So, m= (NΣxy − Σx Σy)/ N(Σx²) − (Σx)²

=

=

=  

= 6.33

and b = Σy − m(Σx)/ N

=

=

=

= 38.71

So, the least squares regression equation is : y= mx+b ⇒ y= 6.33x +38.71

b. When x= 8, then y= (6.33×8)+38.71 = 50.64 + 38.71 =89.35

The approximate test score of a student who sleeps an average of 8 h a night is 89.35%

EVERYTHING IS FROM sicista on brainly!

8 0
3 years ago
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A sequence of numbers is formed by the iterative process Xn+1 = (Xn )2 – Xn
xeze [42]

Step-by-step explanation:

X1 = 1

X2 = (X1) 2 - X1

X2 = 2 - 1

X2 = 1. implies that the second term of the sequence is 1.

3 0
2 years ago
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