Answer:
19 ) B (<2 and <5)
20) A(20)
21 and 22 Don't know sorry
The first way is to cross multiply
4/5 = 28/x
4x = 5*28
4x = 140
4x/4 = 140/4
x = 35 which is the answer
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The second method is to note the denominators 4 and 28, and to ask yourself "what times 4 gets me 28?". The answer being 7, so 7*4 = 28. If you multiply top and bottom of the fraction 4/5 by 7, then you end up with 7*4 = 28 up top and 7*5 = 35 down below. This is another way of seeing how 4/5 = 28/35
Either way, the answer is x = 35
Answer:
y=22/3
x=53/3
Step-by-step explanation:
the first number is x
second number is y
x=2y+3
x+y=25
and solve system of equation
so
x=-y+25
-y+25=2y+3
3y=22
y=22/3
x=53/3
For this case we have a function of the form:
Where,
n0: initial amount (in units of millions)
b: growth rate
t: time in years
Substituting values we have:
Answer:
the number of toys being produced, n (in millions), in t years is:
D. 
