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QveST [7]
3 years ago
6

PLEASE help!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
Luba_88 [7]3 years ago
4 0

Answer: 11

Step-by-step explanation: 5x-15= 3x+7

Combine like terms: 2x= 7+15

Add = 2x= 22

Divide: equals 11

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the set $s = \$ contains the first $50$ positive integers. after the multiples of 2 and the multiples of 3 are removed, how many
Sophie [7]

Clearly, |S| = 50.

Count the multiples of 2 between 1 and 50:

⌊50/2⌋ = ⌊25⌋ = 25

(where ⌊x⌋ denotes the "floor of x", or the largest integer that is smaller than or equal to x; in other words, round <u>down</u> to the nearest integer)

Count the multiples of 3 between 1 and 50:

⌊50/3⌋ ≈ ⌊16.667⌋ = 16

Since LCM(2, 3) = 6, the sets of multiples of 2 and multiples of 3 have some overlap. Count the multiples of 6 between 1 and 50:

⌊50/6⌋ ≈ ⌊8.333⌋ = 8

Then by the inclusion/exclusion principle, we remove from S

25 + 16 - 8 = 33

elements, so that the new set S contains 50 - 33 = 17 elements.

5 0
3 years ago
Which sequence of similar transformations could map △ABC onto △A'B'C'?
nadya68 [22]

Answer:  A sequence of similar transformations of dilation and translation could map △ABC onto △A'B'C'.


Step-by-step explanation:

Similar transformations:  If one figure can be mapped onto the other figure using a dilation and a congruent rigid transformation or a rigid transformation followed by dilation then the two figures are said to be similar.

In the attachment △ABC mapped onto △A'B'C' by a sequence of dilation from origin and scalar factor k followed by translation.

7 0
3 years ago
Read 2 more answers
What does this mean in geometry
Pavlova-9 [17]
Do you mean what are axes?
5 0
4 years ago
Given the scatter plot, choose the function that best fits the data.
igor_vitrenko [27]

Answer:

f(x) = 3x2

Step-by-step explanation:

I think the given the scatter plot is missing and it is my attachment for your question.

My answer:

f(x) = 3x2,  it is a parabolic pathway. a =3 (positive) so the line is going up.

The other options are straight lines so they are wrong.

7 0
3 years ago
Simplify: (2x-2)+(7x+21)
Oduvanchick [21]
Since there is only addition and subtraction between the terms, we can drop the brackets.
= 2x - 2 + 7x + 21
For clarification, we can rearrange the equation. 
= 2x + 7x - 2 + 21
Now we simplify by collecting like terms (the x's must stay together).
= 9x + 19

Hope this helps!
4 0
3 years ago
Read 2 more answers
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