Answer:
a) language
b) 2/15
Step-by-step explanation:
For the first part, you can start by making the denominators same
you take the LCM of 3 and 5 which is 15
Language books are now 10/15 since you multiply the nominator and denominator by 5
While science books are 3/15
10/15 : 3/15 making it obvious that language books are more
if the remaining are math books then
total books - (language + science books) = math books
10/15 + 3/15 = 13/15 (non math books)
15/15 - 13/15 are math books making 2/15 of them math books
Answer:
15n
Step-by-step explanation:
Amal has a bookcase with n shelves. There are 15 books on each shelf. Using n, write an expression for the total number of books.
The expression for the total number of books is given as:
Number of shelves × Number of books in each shelf
= n × 15 books
= 15n
Answer:
D
.(w)(2w+7)=85
Step-by-step explanation:
Hi, to answer this question we have to apply the next formula:
Area of a rectangle: width x length
Since the length will be 7 feet longer than twice its width (w).
So, to obtain the length we have to multiply the width by 2 (twice) and add 7.
Mathematically speaking:
Length: 2w+7
Back with the area formula:
Area of a rectangle: length x width
Replacing with the values given:
85 = w (2w+7)
Note: option D correct equation is D
.(w)(2w+7)=85, since we don't have x variables.
Positive. Keyword is 'above' zero meaning positive numbers. Negative would be 'below' zero.
Answer:
45 is a composite number because, it can be multiplied by 1,5,9,15 and 45.
Step-by-step explanation:
