Answer:
2 hrs and 32 mins
Step-by-step explanation:
Step 1. Because Inez worked more we are going to start by subtracting the the minutes. 23-51= -28.
Step 2. Now we move on to the hours. 7-4= 3. Know we know that the hour time is going to be three. But wait!
Step 3. Because we can't have negative numbers, we need to subtract some more. 60-28= 32. Now I know that my minutes will be 32.
Step 4. But because we used a negative number we have to subtract another hour from our time.
Answer: 2 hrs and 32 mins
Hope this helps!
Answer: 21/40
Step-by-step explanation:
25+18=?The fractions have unlike denominators. First, find the Least Common Denominator and rewrite the fractions with the common denominator.
LCD(2/5, 1/8) = 40
Multiply both the numerator and denominator of each fraction by the number that makes its denominator equal the LCD. This is basically multiplying each fraction by 1.
(25×88)+(18×55)=?
Complete the multiplication and the equation becomes
1640+540=?
The two fractions now have like denominators so you can add the numerators.
Then:
16+540=2140
This fraction cannot be reduced.
Therefore:
25+18=2140
Answer:
The total cost charged by the two companies will be the same for 10 square yards of carpeting .
Step-by-step explanation:
Let us assume that the number of square yards for carpeting used be x.
Let us assume that the total cost of the charged by the companies be y.
As given
Country Carpets charges $22 per square yard for carpeting, and an additional installation fee of $100.
Than the equation becomes
y = 22x + 100
As given
City Carpets charges $25 per square yard for the same carpeting, and an additional installation fee of $70.
Than the equation becomes
y = 25x + 70
Than the two equations are
y = 22x + 100 and y = 25x + 70
Than compare the two equations are
22x + 100 = 25x + 70
25x - 22x = 100 - 70
3x = 30
x = 10 square yards .
Therefore the total cost charged by the two companies will be the same for 10 square yards of carpeting .
1)
answer is B) second choice
2
----------------------- =
x^2 + 6x + 8
2
= -------------------
(x -2)(x - 4)
if x = 2 and x = 4 then results would be undefined
2)
3x - 1
--------------
x^2 - 4x - 45
3x - 1
= -------------
(x - 9)(x+5)
x can't equal 9 and (-5)
so answer are:
A and D (first and last choices)
3)
answer is B, second choice (GCF 6x^3)
18x^5 - 6x^3 6x^3(3x^2 - 1) 3x^2 - 1
----------------- = ------------------------- = -----------------
12x^4 6x^3(2x) 2x
4)
15x^3 - 10x^2 5x^2 (3x - 2) 3x - 2
-------------------- = ------------------------ = -------------------------
25x^3 5x^2(5x) 5x
answer is B( second choice)
i don't see 5 and 6 but 7 and 8 twice
7)
(x- 7)(2x -6) 2(x-3)
= -------------------------- = --------------------
x (x -7)(x+6) x(x + 6)
answer is B)(second choice)
8)
(2x + 3)(x+8) 2x +3
= ------------------------ = ------------------
(x+8)(x - 8) x - 8
answer is C (third choice)
