What is so fragile that if you speak its name, it will break
Is it " silence " ?
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Dana has only nickels in her hand,ajah has exactly the same number of dimes and no other coins.together they have a total of 90 cents how many coins is each person holding ?
5N + 10D = 90
N = D
5N + 10N = 90
15N = 90
N = 6
& D = 6
check answer
Does (6 • 5¢) + (6 • 10¢) = 90¢ ?
30¢ + 60¢ = 90¢
90¢ = 90¢ True
three numbers multiply to give the number 288. two of them are -3 and 12. what's the third number?
x = 288 / (–3 • 12)
x = 288 / –36
x = – 8
1+2−3+4−5+6=7 I have to put one-left and one-right parentheses but I don´t know where
1 + 2 − 3 + 4 − 5 + 6 = 7
1 + 2 − ( 3 + 4 − 5 ) + 6 = 7
1 + 2 − ( 2 ) + 6 = 7
1 + 2 – 2 + 6 = 7
1 + 6 = 7
by how many g is 5 times 250 g less than 2 kg?
2K g = 2000 g
5 • 250 g = 1250 g
subtract –> 750 g
