1.8(14)+25=50
after 14 months, paulette has 75 DVDs in her collection
Answer: 54-7n
Step-by-step explanation:
When we talk about mathematical language, the <u>difference </u>between two numbers, quantities or terms is the <u>substraction operation.</u>
For example, the <u>difference</u> between a and b is:
a-b
On the other hand, if we read a numer c <u>times</u> a number n, this means both numbers are multiplied.
For example:
c <u>times</u> n is:
(c)(n)
So, according to the explained above, “the difference of fifty-four and seven times a number n” is:
54-7n
Answer:
56 tiles
Step-by-step explanation:
Find the area of the room = 7 x 8 = 56 
To Find the tiles, divide the area of the room with the area of the tiles.
So,
= 56 tiles
Answer:
slope=4root5
Step-by-step explanation:
H^2=b^2+ h^2
(8)^ +(4)^
= 64+16
H^ =80
H= ROOT 80
root(4*4*5)
=4root(5)
Answer:
Step-by-step explanation:
x2-9 = 0
Area of one dimension = x-3= 0
So, x2= 9
Square root on both sides;
x= +3 and -3
x-3 is one side
x+3 is the other dimension