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3 years ago

Is this mapping a function or not a function? Explain.

Mathematics

2 answers:

Maru [420]3 years ago

4 0

Answer:

for every x there is just one y

Step-by-step explanation:

i just learned about this

:) ;)

lorasvet [3.4K]3 years ago

3 0

Answer:

a relation in which for every input there is exactly one output (for every x there is just one y)

Step-by-step explanation:

since you didn't give what was supposed to be a mapping function or not thats the best i can do

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Solve x - 3 1/8 = 5/12

Anna007 [38]

Answer:

$\large\boxed{x=\dfrac{85}{24}=3\dfrac{13}{24}}$

Step-by-step explanation:

Convert the mixed number to the fraction:

$3\dfrac{1}{8}=\dfrac{3\cdot8+1}{8}=\dfrac{25}{8}$

METHOD 1:

$x-3\dfrac{1}{8}=\dfrac{5}{12}\\\\x-\dfrac{25}{8}=\dfrac{5}{12}\\\\\text{the common denominator is 24}\\\\x-\dfrac{25}{8}=\dfrac{5}{12}\qquad\text{multiply both sides by 24}\\\\24x-(3)(25)=(2)(5)\\\\24x-75=10\qquad\text{add 75 to both sides}\\\\24x=85\qquad\text{divide both sides by 24}\\\\\boxed{x=\dfrac{85}{24}}$

METHOD 2:

$x-3\dfrac{1}{8}=\dfrac{5}{12}\qquad\text{add}\ 3\dfrac{1}{8}\ \text{to oboth sides}\\\\x=\dfrac{5}{12}+3\dfrac{1}{8}\\\\x=\dfrac{5\cdot2}{12\cdot2}+3\dfrac{1\cdot3}{8\cdot3}\\\\x=\dfrac{10}{24}+3\dfrac{3}{24}\\\\x=3\dfrac{10+3}{24}\\\\\boxed{x=3\dfrac{13}{24}}$

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4 years ago

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nikdorinn [45]

Answer:

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Step-by-step explanation:

8 0

3 years ago

Read 2 more answers

There are 33 times as many boys as girls in a room. If 4 boys and 4 girls leave the room, then there will be 5 times as many boy

KATRIN_1 [288]

Answer:

here are 3 times as many boys as girls in a room. If 4 boys and four girls leave the room, then there will be 5 times as many boys as girls in the room. In total, how many boys and girls were in the room originally?

8 girls

24 boys

7 0

3 years ago

A grocery store polls every twentieth customer to determine if they are satisfied with the cleanliness of the store. Forty custo

Helga [31]

26/40=65% of customers
65% of 800 customers=520 who think the store is clean enough

4 0

2 years ago

Help! Please show work. -2k+10=8(8k-7)

Burka [1]

Answer:

k=1

Step-by-step explanation:

-2k+10=64k-56

66=66k

k=1

7 0

3 years ago