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izzyisawesome5232
23.07.2019 •
Mathematics
20 pts + brainliest solve 4-7 with question and answer. example: 4a. 7a + 2a + 3b solve the first column only!
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Ответ:
Part A
a) 7a+2a+3b> (7a+2a)+3b> 9a+3b
b) 8p+2p-7q> (8p+2p)-7q> 10p-7q
c) 9a²+2a²+5a> (9a²+2a²)+5a---> 11a²+5a
d) 5ab+2ab-7a> (5ab+2ab)-7a---> 7ab-7a
e) 7+2a-a> 7+(2a-a)> 7+a
f) 2a+3b+5a+2b---> (2a+5a)+(3b+2b)> 7a+5b
g) 6p+2q-4p+4q---> (6p-4p)+(2q+4q)> 2p+6q
h) 9m²+7m²+5m-3m> (9m²+7m²)+(5m-3m)> 16m²+2m
i) 7a²+4a-2a²+7> (7a²-2a²)+4a+7> 5a²+4a+7
j) 10p-3q+p-7p> (10p+p-7p)-3q> 4p-3q
k) 3x²+2x-2x²+3x+x²---> (3x²-2x²+x²)+(2x+3x)> 2x²+5x
N 5
a) If Julie buys 4 boxes and Michelle buys 7 boxes
in total
(4+7)*n> 7*n
the answer Part 5 a) is 7*n
b) (5kg+3kg)*b> 8*b
the answer Part 5 b) is 8*b
c) (3+4+6)*x> 13*x
the answer Part 5 c) is 13*x
N 6
a) L+B+L+B> (L+L)+(B+B)> 2*L+2*B> 2*(L+B)
b)
1) L+L+L> 3*L
2) 5+5+5+5> 5*4
3) x+x+y> 2*x+y
4) a+b+c+c> a+b+2*c
N 7
a) s+s+s+s+s+s+s+s> 8*s
b) t+t+t+t> 4*t
c) t+t+t+t+t+t> 6*t
d) t+t+t+s+s> 3*t+2*s
e) t+t+t+s+s+s> 3*t+3*s
f) 12*t+6*s
g) 10 squares+12 triangles> 10*s+12*t
h) n squares+m triangles> n*s+m*t
Ответ:
Step-by-step explanation: