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Delicious77 [7]
3 years ago
15

1/3 + a = 5/4 a = ( ) Help plz!

Mathematics
2 answers:
ziro4ka [17]3 years ago
4 0

Answer:

a = 4/3

Step-by-step explanation:

Hope this will help

Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation :

                    1/3+a-(5/4*a)=0

                 5

Simplify   —

                 4

    1                 5

 ( — +  a ) -  ( — • a )  = 0

   3                 4

                 1

Simplify   —

                 3

Solve  :    -3a+4 = 0

Subtract  4  from both sides of the equation :

                     -3a = -4

Multiply both sides of the equation by (-1) :  3a = 4

Divide both sides of the equation by 3:

                    a = 4/3 = 1.333

Veronika [31]3 years ago
3 0

Answer: a=4/3

Step-by-step explanation:

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A quantity with an initial value of 670 decays continuously at a rate of 25% per hour.
AysviL [449]

Answer:

89.43

Step-by-step explanation:

a = 670 * (1 * .25)^7

a = 670 * (.75)^7

a = 89.43

4 0
3 years ago
What is this? I can't figure it out and forgot how to do it
faltersainse [42]

answer

x =21.24

Step-by-step explanation:

180 (n-2)

7 sides

180 * 5 = 900

add up all the sides and = them to 900

25x + 369 = 900

25x = 531

x = 21.24 = answer

3 0
2 years ago
Charlotte earned a grade of 84% on her multiple-choice math final that had a total of 200 problems. How many problems on the fin
xxTIMURxx [149]

Answer:

Wrong problems = 32

Step-by-step explanation:

Total no of problems = 200

Charlotte earned a grade of 84% on her multiple-choice.

Correct problems,

=\dfrac{84}{100}\times 200\\\\=168

Wrong problems = 200 - correct problems

= 200 - 168

= 32

Hence, there are 32 problems on the final exam Charlotte get wrong.

8 0
3 years ago
Use the following information to determine cos(2x). <br><br> cos(x)=3/5 and sin(x) is negative
kari74 [83]

Hey !!!

sinx = 3/5 ( given )

We know a formula of cos2x = ( 1 - 2sin²x)

putting the value of sinx on value of cos2x = ( 1 - 2sin²x)

hence,

we get

cos2x = ( 1 - 2sin²x )

=> [1 - 2 × ( 3/5 )² ]

=> [ 1 - 2 × 9 /25 )

=> [ 25 - 18 /25 ]

=> 7/25 Answer ✔

4 0
2 years ago
When you write answer do this: blank 1 = Blank 2= Blank 3:
Art [367]

Answer:blank 1=12 blank 2=16 blank 3= 48

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
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