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2 years ago

Michael: (a)(b)(c)

Mathematics

1 answer:

irinina [24]2 years ago

7 0

Answer:

Ladonna: a + c + b

Step-by-step explanation:

-The commutative property in addition states that the order of arrangement of the integers to be added has no effect on their sum such that:

$x+y=y+x$

-Since the alphabet follows the order a,b, c....

Only Ladonna rearranged to change this order to show the commutative property.

-Hence, Ladonna wrote the expression correctly.

*The commutative property should not be confused with the associative property.

-The latter allows you to change the order and terms within the closed parentheses while retaining the answer.

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Please answer me bis two fifths of c. 4a = 30 Work out the ratio a:b:c Give your ans

irina [24]

b is two fifths of c, so we make this a ratio with c = 1.

The ratio of b:c is 2/5 : 1

We also have 4a = 3c, rewrite this ratio so c is 1 by dividing both sides by 4,

so we get the ratio of a to c as 3/4 : 1

Now we get the a:b:c ratio of 3/4 : 2/5 : 1 now we can change the fractions to whole numbers, first by multiplying the 3 numbers by 4 to get get rid of the denominator of 4 in a:

3 : 8/5 : 4

Now multiply the 3 numbers by 5 to remove the denominator of 5 in b:

15 : 8 : 20

Now we can check using the equations:

b is 2/5 of c: 20 x 2/5 = 40/5 = 8 This is true.

4a = 3c: 4(15) = 3(20) = 60 = 60, this is also true.

The ratios is 15 : 8: 20

7 0

2 years ago

Solve the following equation. log(3x)=log(2x-4) *

Irina18 [472]

log(3x) = log(2x-4)

taking antilog of both sides:

3x = 2x - 4

3x - 2x = -4 [subtracting 2x from both sides]

x = -4

and we're done already!

5 0

3 years ago

Una persona toma 7/8 de medicina cuánto toma en tres veces al día

Olenka [21]

Fraction = 21/8

decimal = 2.625

mixed number form = 2 5/8

5 0

2 years ago

Find area of a quadrant of a circle whose radius is 3.5 cm.

kati45 [8]

Area of full circle= πr^2

Area of a quadrant= πr^2/4

=(3.5)^2π/4

=12.25π/4

=3.06πcm squared.

4 0

3 years ago

0.4 divided by 0.08=

NISA [10]

Answer:

The answer is five (5)

Step-by-step explanation:

3 0

3 years ago