21/3 × 2 5/8 perform the indicated operation

-6 1/8

Step-by-step explanation:

=-7/3 *21/8

=147/24

=-6 3/24

=-6 1/8

-49/8

Step-by-step explanation:

Convert both numbers to improper fractions:

-7/3 times 21/8.                                            (-7)(21)

Now multiply these together, obtaining

                                                                        3(8)

Reducing this, we get:

(-7)(7)       49

= -

    8           8

it should be a and d. lmk if i'm wrong xd

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x