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Phoenix [80]
3 years ago
8

Ques

Mathematics
1 answer:
otez555 [7]3 years ago
6 0
No, because the 9 pounds would cost 22.5, and that is 5 cents more than he has
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A rectangular room is 6.8 meters longer than it is wide, and perimeter is 29.6 meters. Find the dimensions of the room.
GuDViN [60]

Answer:

dimensions = 10.8  X 4

Step-by-step explanation:

Breadth/ width of room = x

Length of room =  6.8 + x

perimeter = 2 ( L + B )

29.6 = 2 ( 6.8 + x + x )

29.6/2 = 6.8 + 2x

14.8 - 6.8 = 2x

8 = 2x

8/2=x

4=x

Length of room =  6.8 + x = 6.8 + 4 = 10.8 m

Breadth/ width of room = x = 4m

8 0
3 years ago
How can I work this problem in adding integers with counters 5 + (-7)
Monica [59]

\huge\mathsf\green{Answer}

5 + ( - 7) \\ 5 - 7 =  - 2

<h3>hope it would be helpful </h3>
4 0
2 years ago
Hello, how can I do this exercise the help is appreciated
Semenov [28]

Answer:

5, 8, 11, 14, 17,....

f(n) = 5+3n where n is the number of steps after the first two. 7 steps is 20 faces.

Step-by-step explanation:

A sequence is a list of numbers that are related. The first number in the sequence is 5 since the first part of the stairs has 5 faces (5 squares, the dark don't count). Every time you add a "stair" you add 2 blocks - one underneath to support and one as the step. This adds 3 faces. So 5 becomes 8. Repeat and 8 becomes 11. You add 3 faces each time. So the sequence is

5, 8, 11, 14, 17,....

This is a constant pattern of adding 3 each time after the initial start. So we can write a rule. We start with 5 + 3(each stair step). So if the cube is 7 stairs high, that is 5 more repetitions of adding blocks after the start (remember the start has 2 steps already). So 5 + 3(5) = 20. 7 steps high will have 20 faces.

7 0
3 years ago
4p – 3 = 13<br><br><br><br> answer pls
Galina-37 [17]
P = 4

13 + 3 = 16
16/4 = 4

These questions require reverse order, you have to work backwards
For example 4 * P you would do 4/P instead
8 0
3 years ago
Read 2 more answers
Which of the following statements is TRUE about the stepwise selection procedure?
Rasek [7]

Answer:

A. The stepwise selection procedure uses Adjusted R-square as the "best" model criterion.

Step-by-step explanation:

Stepwise regression is a model which uses variables in step by step manner. The procedure involves removal or inclusion of independent variables one by one. It adds the most significant independent variable and removes the less significant independent variable. Usually stepwise selection uses R-square or Mallows Cp for picking the best fit.

3 0
3 years ago
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