What is nine hundred eighty million in scientific notation

Answers

Answer 1
Answer: nine hundred eighty million in scientific notation is shown as 9.8*10^8.Scientific notation is the way that scientists easily handle very large numbers or very small numbers.

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In 1950, there were 40.3 million cars registered in the United States. In 1990, there were 133.7 million cars registered in the United States. What was the percent increase of registered cars from 1950 to 1990?

Answers

(133.7)/(40.3)*100\%\approx331,76\%

Final answer:

The number of registered cars in the US increased by about 231.76% from 1950 to 1990, calculated by finding the difference between the two given values, then dividing this by the initial value and multiplying by 100 to get the answer as a percentage.

Explanation:

The question is asking for a percent increase in the number of registered cars in the United States from 1950 to 1990. To calculate a percent increase, you first need to determine the amount of the increase, then divide this by the original amount, and multiply by 100 to get the answer in percent form.

The number of registered cars in the United States increased from 40.3 million in 1950 to 133.7 million in 1990. The amount of increase is therefore 133.7 (1990 number) - 40.3 (1950 number) = 93.4 million.

Next, we find the percent increase by dividing the increase by the original (1950) amount and multiplying by 100: (93.4 / 40.3) x 100 = Approximately 231.76%. So, there was roughly a 231.76% increase in the number of registered cars in the United States from 1950 to 1990.

Learn more about Percentage Increase here:

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Find the product. Write your answer in exponential form. 3^9 • 3^7

Answers

Answer:

The product is 3^16

Step-by-step explanation:

When you multiply two numbers with the same base, you simply add the exponents.

9 + 7 = 16

Solve: 3x - 2x + 4 = 5x - 4x - 8

Answers

Answer:

No solution for the given algebraic expression.

Step-by-step explanation:

To solve the algebraic equation we must isolating the variable or rewriting the equation so that the one expression is only the variable with the coefficient 1.

Solve: 3x-2x+4=5x-4x-8

Now put every terms that contains variables on one side of the equation and those terms on the other side which does not contains the variable.

3x-2x-5x+4x=-4-8

Combine like terms:

x-x=-12

0=-12 which is not true.

therefore, the given expression have NO SOLUTION.






The equation 3x-2x+4=5x-4x-8 has \boxed{\text{\bf no solution}}.

Further explanation:

Given:

The equation is 3x-2x+4=5x-4x-8.

Calculation:

The above equation involves only one variable.

To solve a one variable linear equation, arrange all the terms that contain variable on one side and the terms that are free from variable on the other side.

Write the given equation by taking terms that contains variable on left side and the terms which are free from variables on right side.

Subtract (5x-4x) from both the sides of the given equation.

\begin{aligned}3x-2x+4&=5x-4x-8\n3x-2x-5x+4x+4&=5x-4x-8-5x+4x\n7x-7x+4&=-8\end{aligned}

Subtract 4 from both the sides of the above equation,

\begin{aligned}7x-7x+4-4&=-8-4\n0&=-12\end{aligned}  

The above equation shows that the value of 0 is equal to -12.

The statement “0 is equal to -12” is a false statement.

Therefore, the equation 3x-2x+4=5x-4x-8 has no solution.

No solution means there exists no value of x that satisfies the given equation.

Learn more:

1. Solution of linear equation ://brainly.com/question/1682776

2. Equation of line  brainly.com/question/1473992

3. A problem on intercept brainly.com/question/1473992

4. A problem on composite function brainly.com/question/2723982

Answer details:

Grade: Middle school

Subject: Mathematics

Chapter: Linear equation

Keywords: Equation, variable, 3x - 2x + 4 = 5x - 4x – 8, constant, linear equation, no solution, solve, addition, subtraction, isolate, plug, substitute.

The golf club needs to raise $2,620.00 for a trip to play golf at Augusta Country Club. They are selling boxes of personalized golf balls for $25.00 per box. They have already raised $1,225.00 from the fundraiser.The percussion club needs to raise $2,400.00 to pay for a trip to the state capital to participate in a parade. They are selling 3-gallon tubs of caramel popcorn for $18.25 each. They have already raised $1,314.00 from the fundraiser.

If both clubs are going to meet their goals, from this point on the club needs to sell more items from their fundraiser than the club needs to sell from their fundraiser

Answers

OK, here we go. Golf Club first

You subtract the total amount they need to raise, by the amount they already have:
2620 - 1225 = $1395.00 to go

Divide that number by the price of golf balls to find out how many more they need:
1395/25 = 55.8

This means that they need to sell at least 56 golf balls to meet the target.

Now to the Percussion Club...

Do the same thing again:
2400 - 1314 = $1086 to go

1086/18.25 = 59.51

So the percussion club needs to sell at lest 60 more tubs of popcorn to reach their target.

Hope this helps!! :)

Solve the equation below for x
9(x - 5) = 4x - 5

Answers

9(x-5)=4x-5\n\n9\cdot x+9\cdot(-5)=4x-5\n\n9x-45=4x-5\ \ \ \ /+45\n\n9x-45+45=4x-5+45\n\n9x=4x+40\ \ \ \ /-4x\n\n9x-4x=4x-4x+40\n\n5x=40\ \ \ \ /:5\n\n5x:5=40:5\n\nx=8

Is 10 yards less than 360 inches

Answers

1\ yd=3\ ft\ \ \ and\ \ \ 1ft=12\ in\n\n10\ yd=10\cdot3\ ft=30\ ft=30\cdot12\ in=360\ in\n\nAns.\ 10\ yd\ \ \ equals\ \ 360\ in
10 yards= 30 feet (3 feet in 1 yard, so 10x3=30) 30 feet=360 inches (12 inches in 1 foot, so 30x12=360) They are equal