What is -5 5/8 + 3 1/2? Answer now for 25 points and a -3 1/8

-2 1/2

-2 1/8

- 7/8

Work Shown:

5 & 5/8 = 5 + 5/8

-5 & 5/8 = -(5 & 5/8) = -(5 + 5/8) = -5 - 5/8

So,

( -5 & 5/8 ) + ( 3 & 1/2 )

( -5 - 5/8 ) + ( 3 + 4/8 )

( -5+3 ) + ( -5/8+4/8 )

-2 + (-1/8)

-(2 + 1/8)

-(2 & 1/8)

-2 & 1/8

Alternative Method

We could convert each mixed number to decimal form

-5 & 5/8 = -5-5/8 = -5.625

3 & 1/2 = 3+1/2 = 3.5

( -5 & 5/8 ) + ( 3 & 1/2 ) = -5.625+3.5 = -2.125

Then convert back to mixed number form

-2.125 = -2 & 125/1000

-2.125 = -2 & (1*125)/(8*125)

-2.125 = -2 & 1/8

answer set (b) 0.5, 3/4 80% is in order from least to greatest.  

step-by-step explanation:

in order to compare rational numbers to each other, it is much easier if they are in the same form.   typically, the best form in which to evaluate rational numbers is in decimals.   in order to convert a percent to a decimal, you would divide the given percentage by 100.   you can also accomplish the conversion by moving the decimal point over two places to the left.   for example, the decimal value of 80% is 80/100, or 0.8.   in order to convert a fraction to a decimal, you need to divide the numerator by the denominator.   for example, 3/4 is 0.75.   so, for choice (b) 0.5 3/4 (0.75), 80% (0.8) is the only choice in which the numbers are in order from least to greatest.  

c = 0.429t

step-by-step explanation:

the constant rate at which carlos harvests cassava is 35 minutes per 15 cassavas 15/35 = 0.429 cassava per minute

therefore, an equation that models the number of cassava (c) that harvest carlos in a time (t) is the following:

where t is the time in minutes.

this means that when 35 minutes have elapsed 15 cassava have been harvested, at 70 minutes 30 cassava have been harvested and so on.