Ask question

Ask question

All categories

3 years ago

8

74ft to 75ft find each percent change to the nearest percent

1 answer:

mote1985 [20]3 years ago

5 0

(75-74)/75=( 1/75)*100

You might be interested in

Greg has decreased his running time by 1/10 minute each of the last six weeks. Write an expression to represent the total change

Nastasia [14]

x is your starting running time. 1/10 of a minute is 6 seconds, so you can do x - 6(6). 6 times 6 = 36, so your answer is x - 36 seconds. 36 seconds.

7 0

3 years ago

Read 2 more answers

Enter a negative number that is greater than -8

Art [367]

Answer:

-7

Step-by-step explanation:

5 0

3 years ago

Explain how finding 7×20 is similar to finding 7×2000 then find each product

AURORKA [14]

You will get the same answers but with more zeros. For example 7x20 is 140, and 7x2000 is 14,000 but with more zero's

6 0

4 years ago

If the area of a rhombus is 120, and d1 is 4 cm more than twice the length of the shorter one, d2. What are the lengths of the d

melomori [17]

The formula for the diagonal of a rhombus is derived using the area of the rhombus. In other words, if the area and one of the diagonals is given, then the other diagonal can be calculated using the formula, p = (2 × Area)/q, where 'p' and 'q' are the two diagonals of the rhombus.

5 0

2 years ago

11. Find the solutions of x^2-x-30 = 0.

asambeis [7]

To find the solutions of quadratic equation, there are two ways to do which are:

Factorize
Quadratic Formula

<u>S</u><u>t</u><u>e</u><u>p</u><u> </u><u>1</u>

- Factor the expression.

To factor the expression, refer below:

$\displaystyle \large{ (x - a)(x - b) = {x}^{2} - bx - ax + ab}$

For bx and ax, both can be common-factored. Therefore

$\displaystyle \large{ (x - a)(x - b) = {x}^{2} - (b + a)x + ab}$

From the above, we conclude that:

The middle term is b+a
The last term is a×b
Thus, we have to find two numbers that satisfy a+b and a×b

From the expression, 30 comes from 5×6 and when 5-6 = -1. Therefore, a can be 5 and b can be 6.

$\displaystyle \large{{x}^{2} - x - 30 = (x + 5)(x - 6)}$

Because in the middle term, it is -x which is negative, we have to let the highest number become negative.

From the factored expression:

The middle term = 5x + (-6x) = -x
The last term = 5 × (-6) = -30

Then we replace the standard equation with factored form.

$\displaystyle \large{ (x + 5)(x - 6) = 0}$

For this part, we solve like a linear equation where we isolate x. Just think you are solving two linear equations!

Hence

$\displaystyle \large{ x = - 5, 6}$

Therefore, the solutions are x = -5, 6.

7 0

3 years ago