QUICKLY PLEASE HELP!!!!!!!!!!!!!!

Mathematics

2 answers:

marishachu [46]3 years ago

8 0

D you only need that much

vladimir2022 [97]3 years ago

4 0

#1

First step is to divide the cookies by the required cups of sugar to find out how many cookies 1 cup could make:

48/3 = 16

Now, that we know that 1 cup can make 16 cookies, multiply 16 by the 5 cups of sugar she has:

16 x 5 = 80

That makes #1 B.)

#2
With number two, divide the original amount by the new amount of fudge:

192/64 = 3

Now multiply 1.5 by 3

1.5 x 3 = 4.5

That makes #2 A.)

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3x2=7 5x4=23 7x6=47 9x8=79 10x9=?

Mashcka [7]

$(a\times b) = (a\times b) +(b -1) = c \\ \\ 3 \times 2 = (3\times 2) +(2-1) = 6 +1=7 \\ \\ 5 \times 4 = (5\times 4) +(4-1) = 20 +3=23 \\ \\ 7 \times 6 = (7\times 6) +(6-1) = 42 +5=47 \\ \\ 9 \times 8= (9\times 8) +(8-1) = 72 +7=79 \\ \\ \\ \\ 10 \times 9 = (10\times 9) +(9-1) = 90 +8=\boxed {\bf{98}}\\\sf {10\times 9 = \boxed{\bf {98}}}$