replace x = 7 into the equation
f(7) = 7/9 - squared root (7-3)
f(7) = 7/9 - squared root (4)
f(7) = 7/9 - 2
f(7) = -11/9
f(7) = -1.22
Answer:
50 teachers
Step-by-step explanation:
step 1
Find the number of teachers for a ratio of 1:12
1/12=x/2,400
x=2,400/12=200 teachers
step 2
Find the number of teachers for a ratio of 5:48
5/48=x/2,400
x=2,400*5/48=250 teachers
step 3
Find the difference
250-200=50 teachers
So we have 11400 +11400×x=12711
this represents the original price plus some percentage of the original price is equal to the new price. now all we need to do is solve for x
so 11400+11400x=12711
subtract 11400 from each side
11400x=1311 now divide both sides by 11400
x=.115 or about 12%
we can. check by finding 12% of the original price.
11400×.12=1368
now add to 11400
11400+1368=12768 so we are a bit over. this is because it is actually 11.5% just depends on how accurate your answer needs to be
1. 3.0 mL * (1 L )/((1000 mL) = 0.003 L
2. 0.24 dag * (10 g)/(1 dag) * (1000 mg)/(1 g) = 2,400.0 mg
3. 1350.0 mm * (1 m)/(1000 mm) = 1.35 m
4. 20.0 kg * (1000 g)/(1 kg) = 20,000.0 g
5. 0.4 cL * (1 L)/(100 cL) * (1 hL)/(100 L) = 0.00004 hL
6. 310.0 m * (1 km)/(1000 m) = 0.31 km
