From the list, the only region that has a population with seven as the power of ten is Oceania.
<h3>What is the meaning of "the power of ten"?</h3>
In mathematics, large numbers are often expressed as the power of ten. For example 6500 can be expressed as 65 x 10^2 as the exponent (2) indicates the number of zeros.
<h3>What region has a population with seven as the power of ten?</h3>
From the options, the only region that has as a exponent the number seven is Oceania.
Note: This question is incomplete; here is the missing information:
- In the introduction, we looked at the human populations of different geographic groups. There are about 1 x 10^9 people in Africa, 4.2 x 10^9 in Asia, 7.4 x 10^8 in Northern America, 3.7 x 10^7 in Oceania, and 6 x 10^8 in Latin America and the Caribbean.
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Answer:
48
Step-by-step explanation:
100/50 = 2
This means each question was worth 2%
96% / 2% = 48
She got 48 questions right
The answer can be readily calculated using a single variable, x:
Let x = the amount being invested at an annual rate of 10%
Let (8000 - x) = the amount being invested at an annual rate of 12%
The problem is then stated as:
(x * 0.10) + ((8000 - x) * 0.12) = 900
0.10(x) + ((8000 * 0.12) - 0.12(x)) = 900
0.10(x) + 960 - 0.12(x) = 900
0.10(x) - 0.12(x) = 900 - 960
-0.02(x) = -60
-0.02(x) * -100/2 = -60 * -100/2
x = 6000 / 2
x = 3000
Thus, $3,000 is invested at 10% = $300 annually; and $8,000 - $3,000 = $5,000 invested at 12% = $600 annually, which sum to $900 annual investment.
Think of debt to GDP as a fraction. Debt / GDP
<span>So the two ways the ratio can decrease is if the nominator decreases (for example 2/3 goes to 1/3), or the denominator increases (1/3 goes to 1/4).
Dose this help?</span>
