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2 years ago

The blue dot is what value on the number line

Mathematics

2 answers:

Anastaziya [24]2 years ago

5 0

8 and 12 are separated by 1 line, and they have a difference of 4 units, so..

count every two lines and add 4 units

this means that the blue dot is 20

NeTakaya2 years ago

3 0

Answer: ok so i might as well explain why the answer is 20 to me so i put 1 at the start of the number line then the next number was 2 so what i basically did was put 1 2 4 6 8 10 12 14 16 18 20 i am not that good at explaining

Step-by-step explanation:So i didn't really understand the other persons explanation so i put my own

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Answer step by step

enot [183]

Consider, please, this solution/explanation:
1. suppose, that number of cars is 'x', numbers of buses is 'y'.
2. according to the condition 'a total of 32', it means that x+y=32. This is the 1st equation.
3. according to the condition in one car are 3x persons, in one bus are 27y persons, and totaly 3x+27y=408 people. This is the 2d equation.
4. if to solve the system of two equations:
$\left \{ {{x+y=32} \atop {3x+27y=408}} \right. \ =\ \textgreater \ \ \left \{ {{x=19 (cars)} \atop {y=13(buses)}} \right.$

Answer: 13 - b., 19 - c.

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2 years ago

Find the least common multiple of 2, 8 and 20.

charle [14.2K]

Answer:

Step-by-step explanation:

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3 years ago

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Rich in the world Become a youruber

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2 years ago

What is x+2y=6 in point slop form

olasank [31]

Y=x+3 (I did this in my head so I'm not sure)

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3 years ago

It is not possible to prove one pair of triangles congruent and then use their congruent corresponding parts to prove another pa

borishaifa [10]

Answer:

true

The wording does not quite mean anything,

but what I think was meant to ask is

"if we use some parts of two triangles to prove they are congruent,

can we then use that to prove that

a pair of corresponding parts not used before are congruent?"

The answer is

Yes, of course,

Corresponding Parts of Congruent Triangles are Congruent,

which teachers usually abbreviate as CPCTC.

For example, if we find that

side AB is congruent with side DE,

side BC is congruent with side EF, and

angle ABC is congruent with angle DEF,

we can prove that triangles ABC and DEF are congruent

by Side-Angle-Side (SAS) congruence.

We then, by CPCTC, can conclude that other pairs of corresponding parts are congruent:

side AB is congruent with side DE,

angle BCA is congruent with angle EFD, and

angle CAB is congruent with angle FDE.

It was possible (by CPCTC) to prove those last 3 congruence statements,

after proving the triangles congruent.

The expected answer is FALSE.

Step-by-step explanation:

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3 years ago

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