# Algebra - problems - page 106

1. Find unknown
Find unknown numerator: 4/8 + _/8 = 1
2. Rectangle 45
The perimeter of a rectangle is 60cm. If the length of the rectangle is 20cm. a)find the width b)find the area.
3. The smallest number
What is the smallest number that can be divided by both 5 and 7
4. Given
Given 2x =0.125 find the value of x
5. Math test
Obelix filled a mathematical test in which he answered 25 questions. For every correct answer, he received 5 points, for each bad answer he had 3 points deducted. Obelix gained 36% of all points in the test. How many questions did he solve correctly?
6. Father and daughter
When I was 11 my father was 35 year old. Now, father has three times older then me. How old is she?
7. Number of songs
Write an expression for the number of songs they need for this show. Evan and Peter have a radio show that has 2 parts. They need 4 fewer than 11 songs in the first part. In the second part, they need 5 fewer than 3 times the number of songs in the first p
8. Cincinnati
A map is placed on a coordinate grid. Cincinnati located at (5,4) and San Diego is located at (-10, -3). How far apart is Cincinnati from San Diego on the map? Round to the nearest tenth.
9. What is 3
What is the least common denominator of 11/15 and 12/19?
10. Greg and Bill
Greg is 18 years old. He is 6 less than 4 times Bill's age. How old is Bill?
11. Curiosity factor
A blogger starts a new website, initially the number of the traffic is 293 due to their curiosity factor. The business owner estimated that the traffic will increase by 2,6% per week. What will be the number of it in week 5?.
12. Workers 9
If two workers fix two windows in an hour how many windows can 18 workers fix in the same two windows?
13. Dozen
What is the product of 26 and 5? Write the answer in Arabic numeral. Add up the digits. How many of this is in a dozen? Divide #114 by this
14. Nine books
Nine books are to be bought by a student. Art books cost \$6.00 each and biology books cost \$6.50 each . If the total amount spent was \$56.00, how many of each book was bought?
15. Nineteenth member
Find the nineteenth member of the arithmetic sequence: a1=33 d=5 find a19
16. Powers 3
2 to the power of n divided by 4 to the power of -3 equal 4. What is the vaule of n?
17. The difference
The difference of two numbers is 1375. If their exact quotient is 12. Find the two numbers
18. Ages 2
A man's age is 4 times his son's age. After 5 years he will be just twice his son's age, find their ages.
19. Probability of intersection
Three students have a probability of 0.7,0.5 and 0.4 to graduated from university respectively. What is the probability that at least one of them will be graduated?
20. Tickets 4
Stacey is selling tickets to the school play. The tickets are \$7 for adults and \$5 for children. She sells twice as many adult tickets as children's tickets and brings in a total of \$342. How many of each kind of ticket did she sell?

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