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3 years ago

Each of the letters of the word ALABAMA are written on a piece of paper and then

Mathematics

1 answer:

Kruka [31]3 years ago

7 0

Answer:

3/7

Step-by-step explanation:

There are 7 letters in ALABAMA. And there are 4 A's in ALABAMA. So if you're trying to not get an A then you would subtract 4 from 7. Which you would get 3/7 of the letters in ALABAMA are not A.

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There are x number of students at helms. If the number of students increases by 7.8% each year, how many students will be there

vodomira [7]

There will be 1.078x students next year and equation is number of students in next year = x + 7.8% of x

<h3><u>Solution:</u></h3>

Given, There are "x" number of students at helms.

The number of students increases by 7.8% each year which means if there "x" number of students in present year, then the number of students in next year will be x + 7.8% of x

Number of students in next year = number of students in present year + increased number of students.

$\begin{array}{l}{\text { Number of students in next year }=x+7.8 \% \text { of } x} \\\\ {\text { Number of students in next year }=x\left(1+\frac{7.8}{100}\right)} \\\\ {\text { Number of students in next year }=x(1+0.078)=1.078 x}\end{array}$

Thus there will be 1.078x students in next year

3 0

4 years ago

Harry earned ₹40,000 for 80 days of work. He was paid an equal amount each day. How much did he earn per day?

Katyanochek1 [597]

Answer: ₹500

Step-by-step explanation:

Harry earned ₹500 every day.

₹40,000 ÷ 80 = ₹500

₹40,000 divided by 80 will turn 80 days to 1 day which answers your question.

4 0

3 years ago

Which are the solutions of x2 = –7x – 8?

vovangra [49]

Answer:

The solutions are:

$x_1=\frac{-7+\sqrt{17}}{2}$ $x_2=\frac{-7-\sqrt{17}}{2}$

Step-by-step explanation:

We have the following quadratic equation

$x^2 = -7x - 8$

We can rewrite the equation as follows

$x^2+7x + 8=0$

Now we use the quadratic formula to solve the equation

For an equation of the form $ax ^ 2 + bx + c = 0$ the quadratic formula is:

$x=\frac{-b\±\sqrt{b^2-4ac}}{2a}$

In this case:

$a=1,\ b=7,\ c=8$

Then:

$x=\frac{-7\±\sqrt{7^2-4(1)(8)}}{2(1)}$

$x=\frac{-7\±\sqrt{49-32}}{2}$

$x=\frac{-7\±\sqrt{17}}{2}$

$x_1=\frac{-7+\sqrt{17}}{2}$

$x_2=\frac{-7-\sqrt{17}}{2}$

7 0

3 years ago

Read 2 more answers

Combining like terms<br><br> simplify the expression<br> n - 10 + 9n - 3

ohaa [14]

N-10+9n-3
n+9n=10n
10-3=7
so the answer is....
-13+10n

5 0

3 years ago

Read 2 more answers

Genise is making cookies. She needs 1 1/2 cups of flour for one batch, but she wants to make 2 1/2 batches. Write an equation th

nikklg [1K]

"She needs 1.5 cups of flour for 1 batch, but she wants to make 2.5 batches."

This means that she needs 7.5 cups of flour for 5 batches.

Hence, she needs 3.75 cups of flour for 2.5 batches.

5 0

3 years ago