Homework Help: Algebra1

Posted by y912f on Thursday, June 10, 2010 at 2:41pm.

Please check these

15. Simplify the product using FOIL: (4x+3)(2x+5)

6x^2 + 26x + 15

16. Given the set of data 2, 6, 3, 8, 5, 4, 2, what is the mean?

4.28

41. Find 60.5% of 8,125.

4,915.625

54. Find 45% of 125
56.25

68. Evaluate: (5.0 x 10^3) x (4.0 x 10^7)

I need help in this.

69. Find 700% of 100.
700

75. Find the missing side of the right triangle if the hypotenuse is 26 and one of the legs is 24

13

76. Seven is 10% of what number?

70

85. Find: 40 out of 85 in percentage
47.05%

86. Find: 25 out of 75 in percentage
33.33%

87. Find 68 out of 17 in percentage
??

88. Find 21% of 60
12.6

98. If a coat was 25% off of the marked price of $68.00, how much would it cost?

51

Algebra1 - Reiny, Thursday, June 10, 2010 at 4:15pm
good job, all correct except 3

68.
(5.0 x 10^3) x (4.0 x 10^7)
= 20 x 10^10
= 2.0 x 10^11

75.
x^2 + 24^2 = 26^2
x^2 + 576 = 676
x^2 = 100
x = √100 = 10

87.
68/17
= 4
= 400%

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