joe correctly answered 70% of the questions on a test. there were 50 questions. how many questions did joe answer correctly?

Answers

Answer 1
Answer: your answer is 35 because you do 35 divided by 50 which equals 0.7 starting from the decimal, move two spaces to the right and you will get 70%
Answer 2
Answer:                     .70 *50 =35 .......


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How do you change 36/10 to a decimal?
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Dinesh thinks that the point (1,3) is on the line y = 4x - 2.State whether Dinesh is correct and give a reason to justify your answer.pls help me thanks​
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What is the quotient of 4/7 divided by 6

Is 3y=4x an example of direct variation?

Answers

Answer:

NO

Step-by-step explanation:

Answer:

NO

Step-by-step explanation:

A direct variation is defined as when two numbers change but one is always a multiple of the other or if they always have a constant ratio.

Which of the following is equivalent to 3/4a-6=1/4

Answers

(3)/(4)x-6=(1)/(4)\ \ \ \ |\cdot4\n\n3x-24=1\ \ \ |+24\n\n3x=25\ \ \ \ |:3\n\nx=(25)/(3)\n\nx=8(1)/(3)

36 is 0.9% of what number w?

Answers

We set up an equation: 36/?= 0.9/100

Cross multiply: 0.9*?= 36*100
⇒ ?= 36*100/0.9= 4000

36 is 0.9% of 4000.
36 x 0.9 = answer
you can use a calculator

If $535 is invested at an interest rate of 6% per year and is compounded continuously, how much will the investment be worth in 10 years?$1307.12
$974.83
$973.38
$403.43

Answers

A = Pe^rt , e = 2.718

A = 535 * (2.718)^(10 * 0.06)
A = 974.83

answer is $974.83

Compound Interest can be defined as the interest that is accumulated on a particular sum of money or investment after a given period of time.

The investment will be worth $974.83 in 10 years.

The formula to solve for the amount an investment will be worth if it is compounded continuously is given as:

A = Pe^rt

P = Principal = $535

R = Interest rate = 10%

T = Time in years = 10 years

First, convert R as a percent to r as a decimal

r = R/100

r = 6/100

r = 0.06 rate per year,

Then solve the equation for A

A = Pe^rt

A = 535(2.71828)^(0.06 x10)

A = $974.83

Therefore, the investment will be worth $974.83 in 10 years.

To learn more, visit the link below:

brainly.com/question/24793452

Joann invested $43,000 at 6% to be compounded annually. What will be the value of Joann's investment in 2 years? Round your answer to the nearest cent. Note: 365 days in a year and 30 days in a month.

Answers

Answer:

The total amount after 2 years of Joann's investment at a rate of 6% compounded annually is US$ 48.314.80 (rounded to the nearest cent)

Step-by-step explanation:

1. Let's review the data given to us for answering the question:

Investment amount = US$ 43,000

Duration of the investment = 2 years

Annual interest rate = 6% compounded annually

2. Let's find the future value of this investment after 2 years, using the following formula:

FV = PV * (1 + r) ⁿ

PV = Investment = US$ 43,000

number of periods (n) = 2 (2 years compounded annually)

rate (r) = 6% = 0.06

Replacing with the real values, we have:

FV = 43,000 * (1 + 0.06) ²

FV = 43,000 * (1.06) ²

FV = 43,000 * 1.1236

FV = US$ 48.314.80

Plz i need help asap

Answers

1. x = 4

2. x = 3

3. x = 2 and x = -3

Step-by-step explanation:

solution 1

√(3x+4) = 4

or, 3x+4 = 16 ( by squaring both sides)

or, 3x = 16 - 4

or, 3x = 12

or, x = 12/3

=4

solution 2

(x+5)^(2/3) = 4

or, (x+5) = 4^(3/2) ( by the rule of index)

or, x+5 = 2^3

or, x + 5 = 8

or, x = 8 - 5 = 3

solution 3

√(x+7) - x = 1

or, √(x+7) = x+1

or, x + 7 = (x+1)^2 (squaring both sides)

or, x + 7 = x^(2) + 2x +1

or, x^(2) + x - 6 = 0

or, x^(2) + 3x - 2x - 6 = 0 ( by middle term factor method)

or, (x+3) (x -2) = 0

or, x= -3 and x = 2