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BabaBlast [244]

2 years ago

15

Loretta deposits $350 every quarter into a savings account that earns 4.5% interest compounded quarterly. What is the balance af

ter 7 years?
A. $10,312.63
B. $11,344.18
C. $11,444.27
D. $12,477.74

1 answer:

Ann [662]2 years ago

8 0

I am thinking the answer is C

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The scale factor of a room for a scale drawing is 2.3. The actual length of a wall in the room is 46 feet and the actual width o

dimaraw [331]

Answer:

There's two ways to solve this.

Step-by-step explanation:

First way:

Let's divide the width and length by 2.3.

46÷2.3=20

69÷2.3=30

20×30

600 ft²

Second Way:

Let's find the area of the actual room.

46×69

3,174 ft²

Let's find the scale drawing squared.

2.3²=5.29

3,174÷5.29

600 ft²

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2 years ago

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A gym is considering changing its operating hours at multiple locations in a city. The gym management wants to know what percent

Marrrta [24]

You don't need the names since there is 4367, and that would only be about 1/9th of the whole amount of members, so b is out of the question. you need average people to make it, so d is out of the question, and picking a random letter out of the alphabet is as arbitrary as a, but you are adding the effect of Inconsistency so I would say Let the gym management decide which members should be surveyed is the right answer

5 0

2 years ago

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19% of a certain population of students at Hardy-Weinberg equilibrium is affected by an autosomal dominant condition called ‘laz

bazaltina [42]

Answer:

81%

Step-by-step explanation:

Let 'L' be the dominant and 'l' e the recessive allele for ‘lazybuttness’.

Since ‘lazybuttness’ is an autosomal dominant condition, the 19% of students affected by the condition correspond to the homozygous dominant (LL) and heterozygous (Ll) genotypes. Therefore, the rest of the population has the homozygous recessive genotype (ll) and is not affected. The frequency of students not affected is:

F = 100% - 19% = 81%

3 0

2 years ago

A marine biologist is setting up a net 6 feet below the surface of the water. Each foot of the water screens out 40% of the ligh

rosijanka [135]

Answer:

<u>The correct answer is C. 4.7%</u>

Correct statement and question:

A marine biologist is setting up a net 6 feet below the surface of the water. Each foot of the water screens out 40% of the light coming from the surface. Which of the following is the approximate percentage of light remaining after passing through 6 feet of water, to the nearest tenth of a percent?

0.4%

1.0%

4.7%

7.8%

Source: brainly.com/question/4136163

Step-by-step explanation:

1. Let's review all the information given to us to answer the question correctly:

Depth of the net = 6 feet below the surface of the water

Each foot of the water screens out 40% of the light coming from the surface.

2. Which is the approximate percentage of light remaining after passing through 6 feet of water, to the nearest tenth of a percent?

After one feet: 100 - 40 = 60%

After two feet = 60 - 0.4 * 60 = 60 - 24 = 36

After three feet = 36 - 0.4 * 36 = 36 - 14.4 = 21.6

After four feet = 21.6 - 0.4 * 21.6 = 21.6 - 8.64 = 12.96

After five feet = 12.96 - 0.4 * 12.96 = 12.96 - 5.18 = 7.78

<u>After six feet = 7.78 - 0.4 * 7.78 = 7.78 - 3.11 = 4.67 = 4.7 (Rounding to the nearest tenth)</u>

<u>The correct answer is C. 4.7%</u>

5 0

2 years ago

Aa if #2 wasn't confusing enough, laura is now trying to come up with a number where three less than 8 times the number is equal

umka21 [38]

Answer: Laura cannot find the number, as explained below.

Explanation:

1) The question is aimed to determine the number that Laura is trying to come up with.

Such question is solved by stating an algebraic equation from the word statement, which is done step by step.

2) Using the name x for the unknown, the expression "three less than 8 times the number" is translated to: 8x - 3

3) The expression "half of 16 times the number after it was increased by 1" is translated to: (1/2) (16x + 1)

4) Finally, since they are equal, you can set the equation:

8x - 3 = (1/2) (16x + 1)

5) And solve for x in this way:

i) Distributive property:

8x - 3 = 8x + 1/2

ii) At this stage you can see that the both 8x terms (on the left and on the right) cancel each other, which leads to the impossibility to determine the value of the unknown:

-3 = 1/2 which is alwasy false, meaning that the equation has no solution.

4 0

2 years ago