Answer:
b=15
Step-by-step explanation:
2/3b=10
3×2/3b=10×3
2b=30
÷2. ÷2
b=15
Answer:
$90000
Step-by-step explanation:
From the pie chart,
Let the total annual income = $y
The percentage of housing = 28 %
The percentage of clothing = 14 %
The combined percentage of housing and clothing = 28+14 = 42 %
If the amount spent on both housing and clothing combined = $ 37800
Therefore,
y(42/100) = 37800
Solve for y
42y = 37800×100
42y = 3780000
y = 3780000/42
y = $90000
Hence, the total annual income is $90000
Answer:
B
Step-by-step explanation:
Answer: she would be having $64 on the sixth day
Step-by-step explanation:
Each day,she doubles the number of dollars she saved on the previous day. This amount of money that she saves each day is increasing in a geometric progression. The formula for the nth term of a geometric progression is
Tn = ar^(n - 1)
Where
a is the first term of the sequence
r is the common ratio
n is the number of terms
To determine how much she saves on the sixth day,
n = 6
a = 2
r = 2
T6 = 2×2^(6 - 1)
T6 = 2 × 2^5
T6 = 64
