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lisabon 2012 [21]
3 years ago
7

Three less than two times a number is 55. What is the number ?

Mathematics
2 answers:
vampirchik [111]3 years ago
6 0
2x-3=55
You solve the equation as follows: 
2x-3=55
    -3   -3
2x=52
/2    /2
x= 26
The number is 26
Aloiza [94]3 years ago
5 0
29
2x29=58-3 =55
3-2x (x=29) =55
29x2=58-3
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Move triangle ABC so it lies on top of triangle DEF, triangle GHI, and triangle JKL. How many units do you have to move triangle
dusya [7]

Answer:

See explanation

Step-by-step explanation:

The question is incomplete, as the diagram of coordinates of the three triangles are not given.

A general explanation is as follows:

First, record the coordinates of the corresponding points of the three triangles.

For instance; In triangles ABC, DEF and GHI; A, D and G are corresponding points.

Now, assume the coordinates are:

A = (1,1)

D = (1,5)

G= (-2,1)

Point D is 4 points to the right of A;

i.e.

D =(1,1+4) = (1,5)

Hence, ABC will be moved 4 units right to lie on DEF

Similarly, point G is 3 units down of A

i.e.

G =(1-3,1) = (-2,1)

Hence, ABC will be moved 3 units down to lie on GHI.

5 0
3 years ago
Need help with this....
emmainna [20.7K]
There is no outliers though 102 and 9 are the furthest numbers from the rest, but not a significant outlier
5 0
3 years ago
Chealsea wants to rearrange her room
Llana [10]

Answer:

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3 0
3 years ago
Read 2 more answers
Which equation could be used to solve this problem? The sum of two consecutive odd integers is 24. Let n represent the first int
USPshnik [31]
If n is the first integer, then n+2 is the second one. The equation for the sum can be written as
  n + (n+2) = 24 . . . . . . this equation can be used to solve the problem

  2n = 22 . . . . . . . . . . . simplify, subtract 2
  n = 11

The integers are 11 and 13.

_____
I like to solve problems like this by looking at the average of the integers. Here, it is 24/2 = 12. The consecutive odd integers whose average is 12 are 11 and 13.
6 0
3 years ago
The temperature in anchorage ,Alaska was 4 degrees at 2:00 pm.The temperature dropped 2.5 degrees per hour until 9:00 pm.The tem
puteri [66]

Answer:

It was 26.5 degrees colder at midnight than at 2:00 pm

Step-by-step explanation:

We have that:

At 2:pm, it was 4 degrees.

The temperature dropped 2.5 degrees per hour until 9:00 pm.

From 2pm to 9pm, there are 7 hours. 2.5 per hour, it was 4 degrees at 2 pm.

So at 9 pm the temperature is:

4 - 2.5*7 = -13.5

The temperature dropped another 9 degrees by midnight.

At midnight, the temperature is -13.5 - 9 = -22.5 degrees

How much colder was it at midnight than at 2:00 pm?

2pm: 4 degrees

Midnight: -22.5 degrees

How much coldren

-22.5 - 4 = -26.5

It was 26.5 degrees colder at midnight than at 2:00 pm

6 0
3 years ago
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