the scientist's collection that has granite that weighs 74 26/36 lbs, marble that weighs 63 16/34 lbs, and quartz that weighs 81 9/40 lbs. Approximately each quantity to the nearest 1/4 how much more does the quartz weigh than the granite? a 6 lbs b 6 3/4 lbs c 11 1/4 lbs d 6 1/2 lbs

(D)6 1/2 lbs

Step-by-step explanation:

Difference = 81.25 - 74.75

=6.5 lbs

The correct option is D.

26

step-by-step explanation:

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions