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Jobisdone [24]
3 years ago
13

Bianca wrote the steps for her solution to the equation 2.3 + 8(1.3x – 4.75) = 629.9. She left out the description for the last

step.
What is the missing step of her solution?

Add 10.4 to both sides.
Add negative 10.4 to both sides.
Multiply both sides of the equation by 10.4.
Divide both sides of the equation by 10.4.
Mathematics
2 answers:
Inessa05 [86]3 years ago
7 0

Answer:

Option 4th is correct  the last step would be divide by 10.4 to get the value of x.

Step-by-step explanation:

We have been given an expression:

2.3+8(1.3x-4.75) =629.9  

We will solve the above equation for x

First distribute the parenthesis  over 8 we get:

2.3+10.4x -38=629.9

Now, subtract 2.3 on right hand side of the above equation we get:

10.4 x -38 =629.9-2.3

10.4 x=627.6+38

10.4 x=665.6

Hence, the last step would be divide by 10.4 to get the value of x

therefore, option 4th is correct.

Virty [35]3 years ago
5 0

I believe dividing is always the last step.


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What does i^16 equal and how do you get the answer​
svp [43]

Answer:

i^16 = 1

Step-by-step explanation:

i = √-1 = i

i^2 = i * i = (√-1)^2 = -1

i^3 = i^2 * i^1 = -1 * √-1 = -√-1 or -i

i^4 = i^2 * i^2 = -1 * -1 = 1

the order keeps following......

i^16 = 1

since i^16 is same thing as i^4 * i^4

and we know i^4 = 1 so 1*1=1

7 0
3 years ago
Please help me complete the blanks!!
DaniilM [7]

Step-by-step explanation:

If half of the tuna sandwiches were on white bread then 21 of them would be white, meaning the other half would be on brown bread.

Then if 25% of ham sandwiches were on brown bread then 25% of 32 would be 8, so the final 75% would be on white bread, which would be 24.

Finally, with 20 more white bread sandwiches sold than brown bread it couldn’t be 80 and 20, it would be 40 brown bread in total and 60 white bread in total adding up to 100, as it says white sells 20 more than brown not only 20.

To finish this question you would add up the tuna and ham for white (21+24=45) then minus that from 60 (60-45=15) so there were 15 cheese sandwiches on white bread. And then for brown (21+8=29) then minus that from 40 (40-29=11) so therefore there are 11 cheese sandwiches on brown bread.

Answer:

Brown:

Tuna-21

Cheese-11

Ham-8

Total-40

White:

Tuna-21

Cheese-15

Ham-24

Total-60

Hope that helps!

7 0
4 years ago
Two neighbors both have rectangular swimming pools in thir backyards. one neighbors pool has dimensions that are twice as great
olga nikolaevna [1]
It would be b) 2:1 (:
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3 years ago
What is one tenth of 0.5
Paraphin [41]
0.5 x 1/10 = 0.05 All you do is multiply 
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Apply the distributive property to factor out the greatest common factor.
ruslelena [56]
80+32=112 so all you do is just add or use a brain .
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3 years ago
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