3 years ago

A decreased by 20% and then increased by 20% express using algebra asapppppp

Mathematics

1 answer:

Ket [755]3 years ago

6 0

Answer:

96%

Step-by-step explanation:

assume the whole number is x

the first thing is decreasing by 20 %

x - 20%x = 80% x

then now the 80%x is the whole number

now It's the turn of increasing

80%x + 20% * (80% x) = 80%x + 16%x = 96% x

I hope this is hlepful to you !!!!

Feel free to ask me in the comments

You might be interested in

The function f is defined by f(x)=2.1x−1.7. Use this formula to find the following values of f. f(x+2)

Yuki888 [10]

The value of $f(x+2)=2.1x+2.5$

Step-by-step explanation:

Given: The function $f(x)=2.1x-1.7$

Using this formula, we need to find the value of $f(x+2)$

Hence, we need to substitute $x$ by $x+2$ to find the value of $f(x+2)$

$f(x+2)=2.1(x+2)-1.7$

Multiplying the term $(x+2)$ by $2.1$ , we get,

$f(x+2)=2.1x+4.2-1.7$

Adding the constant term,

$f(x+2)=2.1x+2.5$

Thus, the value of $f(x+2)$ is $f(x+2)=2.1x+2.5$

8 0

3 years ago

A bank exchanges United States currency for British courrency at the rate of 1.60 dollars to the £ .

kompoz [17]

Answer:

Remember that £ has a greater value compared to $ and vice versa.

5 0

3 years ago

Stu counted the lines of a page in his book. Counting by three gave a remainder of 2, counting by fives also gave a remainder of

nirvana33 [79]

47

6*7=42
15*3=45
9*5=45

6 0

3 years ago

20 points NEED HELP

Finger [1]

It would be C, because there are 700,000 people and with A, B, and D there are more people than there are the original population.

8 0

3 years ago

Read 2 more answers

Find cos(β) in the triangle.

denis23 [38]

Answer:

$cos \beta = \frac{adjacent}{hypotenus}$

$cos \beta = \frac{8}{17}$

6 0

3 years ago