First, find a common denominator (the bottom number) Then add the tops as usual. Four and five have a common denominator of 20 so: 8/20+5/20=13/20
1/2 / 3 = 1/2 x 1/3 = 1/6
each person will get 1/6 lb of chocolate
The problem deals with fractions comparison, lets do it:
21/30 > 2/3
we begin solving:
21 > (2/3)*30
21 > 2*10
<span>21 > 20
</span>therefore the proposed inequality is true, <span>21/30 > 2/3
You can solve as well getting same denominator for both fractions and comparing directly, in this case we need to get 2/3 to be divided by 30:
2/3 = (10/10)(2/3) = 20/30
So we have:
</span><span>21/30 > 2/3
</span>which is equal to:
<span>21/30 > 20/30
</span>and we compare directly because both fractions are divided by the same number, and we can see that the inequality is true.
X is the amount of weeks.
Equation: 425+25x=875-15x
Solve for x:
25x+15x=875-425
40x=450
x=11.25
The answer is 11.25 weeks.
Answer:
x≥11
Step-by-step explanation:
2(4+x)+2(3x) ≥96
as at least means either greater than or equal to
now simplify as 2 multiplies 4+x
8+2x+6x ≥96
8+8x≥96take 8 on other side
8x≥96-8
8x≥88
x≥88/8
x≥11
