2/3 times 15 and explained

Mathematics

1 answer:

IgorC [24]3 years ago

8 0

Answer:

Step-by-step explanation:

2/3 * 15/1 = 30/3 = 10

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Which table shows a proportional relationship between x and y?

Semenov [28]

Answer:

Step-by-step explanation:

A proportional relationship is a relationship which crosses through the origin (0,0) and which has a proportional constant. We can determine this either by finding (0,0) where x=0 and y=0 in the table or by dividing y/x. None of the tables contain (0,0) so we will divide y by x. We are looking for a table which when each y is divided by its x we have the same constant appearing.

Table A

$\frac{12}{3} \neq \frac{15}{6} \neq \frac{18}{8} \neq \frac{20}{10}$

These fractions are not equal. This is not proportional.

Table B

$\frac{0.5}{1}=\frac{1}{2} =\frac{3.5}{7} =\frac{4}{8}$

These fractions are equal and each shows the numerator to be half of the denominator. This is proportional.

Table C

$\frac{1}{3}\neq \frac{2.5}{7.5} \neq \frac{4}{15} \neq \frac{6}{20}$

These fractions are not equal. This is not proportional.

Table D

$\frac{7}{2} \neq \frac{9}{3}\neq \frac{11}{4} \neq \frac{13}{5}$

These fractions are not equal. This is not proportional.

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3 years ago

Find the fifth term in the sequence that is defined as follows an=n2+2

Angelina_Jolie [31]

A(5) = 2 + 5^2 = 2 + 25 = 27
Step-by-step explanation:
This sequence is defined as a(n) = 2 + n^2.
Thus, a(1) = 2 + 1^2 = 2 + 1 = 3
Then a(5) = 2 + 5^2 = 2 + 25 = 27

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3 years ago

Express 5/21 as a decimal...please help !

Rudik [331]

5/21 = 5 ÷ 21 = 0.238

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3 years ago

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The volume of construction work was increased by 60% but the productivity of labor increased by only 25%. By what percent must t

ss7ja [257]

The number of workers must be increased by 28%.

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