Solve for y:-

78 + y = 523

y = ?

Thank you so much! :)

Answers

Answer 1
Answer: 78 + y = 523

Now, first lets start out by applying the inverse operation to isolate the variable.

78 + y = 523
-78         -78           ⇒  Inverse operation

523 - 78 = 445      

y = 445                   ⇒ We have our value for y

CHECK OUR WORK:-

78 + 445 = 523
523 = 523

Our answer is correct. 
Answer 2
Answer: To solve for y we need to use d INVERSE OPERATION of addition which is subtraction. Then we will check our work:-
 
Lets do it:-
 
78 + y = 523
523 - 78 = 445
y = 445
 
CHECK OUR WORK:-
 
78 + y = 523
y = 445
78 + 445 = 523
We were RIGHT!!
 
So, y = 445
 
Hope I helped ya!! xD

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a box of 10 markers weighs 105 grams. if the empty box weights 15 grams, how much does each marker weigh?

Answers

first, ,how much do all the markers weight? the box with the markers weights 105, so without the box all the markers weigh 105-15=90 grams.


so 90 grams is the weight of 10 markers together, and each of them will weigh one tenth of this: 90/10=9

so each marker weights 9 grams.

Final answer:

The weight of each marker can be found by first subtracting the weight of the empty box from the total weight to get the weight of all markers, then dividing by the number of markers. Each marker weighs 9 grams.

Explanation:

Firstly, we can find the total weight of the markers by subtracting the weight of the empty box from the total weight of the box with the markers. Doing this calculation (105 grams - 15 grams) gives us the total weight of the markers, which is 90 grams. As there are 10 markers, we can find the weight of each marker by dividing the total weight of the markers by the number of markers. This calculation (90 grams / 10) results in each marker weighing 9 grams.

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What ratio is not equivalent to the othe three 2/3, 12/15, 18/27 .6/9

Answers

12/15 simplifies to 4/5, whereas all the others simplify to 2/3.  Therefore, 12/15 is not equivalent to the rest.

PercentsSuppose that an individual has a body fat percentage of
and weighs
pounds. How many pounds of her weight is made up of fat? Round your answer to the nearest tenth.

Answers

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The NYC Parks Department is designing a rectangular athletic field for a new park in Brooklyn. The width of the field needs to be 10 feet shorter than the length, and the perimeter of the field needs to be 80 feet. What is the length of the new field?

Answers

Answer:

Length = 25feets

Step-by-step explanation:

Let the length l = x

Width w = x - 10

Perimeter = 80

And Perimeter = 2(l + w)

:- 80 = 2{x + (x - 10)}

80 = 2{x + x - 10}

80 = 2(2x - 10)

80 = 4x - 20

4x = 80 + 20

4x = 100

x = 100/4

x = 25ft

What's the square root of 0.4 repeating

Answers

The square root of 0.4 repeating is 0.6 repeating.

What is square root?

A value that, when multiplied by itself, yields the number is the square root of a number.

How to find the square root of 0.4 repeating?

Given number 0.4 repeating

We have to find the square root of it

Let x= 0.444 ..(1)

Multiply 10 both sides.

10x = 4.444  ..(2)

Subtract equ(1) from equ(2)

9x=4

 x=4/9

Take square root both sides

√x=2/3

   = 0.6 repeating

Hence the square root of 0.4 repeating is 0.6 repeating

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The answer depends on knowing that 0.4444.... is equal to 4/9; 
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In the number 222, what is the relationship between the 2s? Think about the place value of each

Answers

Answer:

2, 20 , 200.

Step-by-step explanation:

Given:In the number 222 .

To find: what is the relationship between the 2s.

Solution: We have given that  number 222 .

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First 2 from right is at ones place = 2.

Second 2 from right is at tens place = 20

Third 2 from right is at the hundred place = 200.

Therefore,  2, 20 , 200.

The first 2 on the left means that there are 2 hundreds the next is 2 tens ans 2 ones. Hope this helps