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NikAS [45]
3 years ago
13

Find the percent decrease.Round to the nearest percent. From 97 to 75

Mathematics
1 answer:
damaskus [11]3 years ago
4 0

Answer:

Step-by-step explanation:

Decrease = 97 - 75 = 22

Percentage of decrease=

=\frac{22}{97}*100

= 22.68

= 23%

You might be interested in
Mandy used the input and output in this table to write ratios. She concluded that because they are not all equivalent, this is n
Rufina [12.5K]

Answer:

No, she is not correct, this is a proportional relationship.

Step-by-step explanation:

Proportional relationships are relationships with equal ratios

column 1               column 2           column 2/column1

   'x'                            'y'          

    1                             5                               5

    2                            10                              5

    5                            25                             5

    10                           50                             5

As we clearly see that ratio of column 2 and column 1 is same for every row

Therefore, the given relation is proportional.

learn more about proportional relations at  

brainly.com/question/14626971

#SPJ10

6 0
1 year ago
2 + 2 ez badge yeah ok now what do i do
Marrrta [24]

Answer:

4

2 + 2 = 4

took me longer then I expected

6 0
2 years ago
Solve systems of three variable equations - how to do :(​
krek1111 [17]

a= 6-2b-3c

then put that equation inside the first one and then the second one

you get -6*(6-2b-3c)+2b-3c=23

and 5*(6-2b-3c)+4b-3c=-12

14b-15c=59

14b-18c=18/*(-1)

--------------------

3b=41

7 0
2 years ago
Which are NOT true for solving equations? Select ALL that apply.
enot [183]

Answer:

d, To undo addition, you can use multiplication

Step-by-step explanation:

a, To remove a whole number next to the variable, multiply both sides by that number

3 0
3 years ago
Solve the equations by factoring:<br><br>x^2−3x−40=0<br><br>4x^2−81=0
Alja [10]

Answer:

see explanation

Step-by-step explanation:

Given

x² - 3x - 40 = 0

Consider the factors of the constant term (- 40) which sum to give the coefficient of the x- term (- 3)

The factors are - 8 and + 5, since

- 8 × 5 = - 40 and - 8 + 5 = - 3, thus

(x - 8)(x + 5) = 0 ← in factored form

Equate each factor to zero and solve for x

x - 8 = 0 ⇒ x = 8

x + 5 = 0 ⇒ x = 5

------------------------------------------------------

Given

4x² - 81 = 0 ← this is a difference of squares and factors in general as

a² - b² = (a + b)(a - b), thus

4x² - 81

=(2x)² - 9²

= (2x + 9)(2x - 9) = 0 ← in factored form

Equate each factor to zero and solve for x

2x + 9 = 0 ⇒ 2x = - 9 ⇒ x = - \frac{9}{2}

2x - 9 = 0 ⇒ 2x = 9 ⇒ x = \frac{9}{2}

8 0
3 years ago
Read 2 more answers
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