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Math quiz 7.B Nicolas Ortiz Martinez

1. Simplify the following expression x + x + x
4
4x
3x
3
2. Expand 4(5x+3)
20x+7
20x-1
20x+1
20x+12
3. Expand the expression 7(-9c+2)
-63c+14
-63c+11
-2c-14
-9c+15
4. How much is 2,456 plus 4,758 minus 3,289 minus 1,000 plus 5,873?
9,245
7,635
8,798
6,578
5.Simplify the following expression: 2y + 3y + y
Y
5y+y
6y
7y
6. What is the numerical coefficient of 61ab?
61
A
B
Ab
7. Expand the expression -6(5z+3)
-30z-18
30z+18
18z+8
-18+5z
8. By solving equation a=2-9a, value of a will be?
1/5
2/5
2/3
1/2
9. By solving equation 2a2=20, value of "a" will be
12
14
11
13
10. Expansion of -8(3a + 5b) yields
-24a - 40b
-22a + 80b
20a - 30b
-24a - 41b
11. Expansion and simplification of 8(3h - 4) + 5(h - 2) gives
24h - 37
36 - 4h
29h - 42
38 + 42h
12. A number increased by eight is 16, find the number.
8
O
7
9
13. Four more than a number is 13, what is the number?
0
8
9
7
14. Three-fourths of a number is 6, what is the number?
12
8
7
14
15. Simplify the following equation: (4x-3y+8xy) (4x+4xy-9x).
-1x-3y+12xy
5y+2x+12xy
1+3y-12xy
-1x-3y+13xy
16. A number increased by two is 9, find the number.
4
7
8
18
17. A number diminished by 10 is 4, find the number.
15
3
14
18
18. If x = 5, y = 3 and z = 2 then xz (4y - 2z) is
10
80
8
116
19.On simplifying algebraic expression 2{4a + [-b -5(c + a -b)]}, answer will be
3b + 10c
7a - 3b + 11c
4a + 6b + 12c
ˆ’2a + 8b - 10c
20.Algebraic form of statement "sum of product of 2a and 2b and product of 12x and 2y" is
4ab + 24xy
24ab + 4xy
4ab + 12x + 2y
2a + 2b +24xy
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