Glenn needs to cut pieces of ribbon that are each 1 meter long to make ribbon key chains. If he has 3 pieces of ribbon that are each 1 dekameter long, how many 1−meter pieces of ribbon can he cut?

Glenn can cut 30 pieces

Step-by-step explanation:

I dekameter =10 metres

If she has 3 pieces that are 1 dekameter long each,

The total length in metres of the ribbons=3X10 metres

If the pieces needed to make the ribbon chains are 1 metre long each

Number of ribbons Glenn can cut =Total Length of ribbon/Length needed for each ribbon key chain

=30/1 = 30 pieces

-7/8

step-by-step explanation:

instead of subtracting you add the -6/8 and -1/8

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!