Mary's 3 hamsters each eat three-eighths of cup of grain a day, if she has 6 and 3/4 cups of grain, how many days will the grain last?

6 days

Step-by-step explanation:

Each hamster eat of a cup of grain a day.

So in one day, the three hamsters eat:

cups

And since we know that Mary has 6 cups of grain.

We need to convert this quantity into a fraction:

she has cups of grain.

To find how many days the grain will last, we need to divide the total amount of grain she has ( cups) by the amount that the three hamsters eat together in one day ( cups):

÷

and we use the rule to divide fractions:

÷

this way we get:

÷

the grain will last 6 days

d) 30 units^2

area of rectangle = l × b

we know,

length = 10 unit

breadth = 3 unit

applying the formula,

= l × b

= 10 × 3

= 30 unit^2

happy to

pls mark as brainliest

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

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