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ioda
2 years ago
10

Consider the equation 9 – x = 5. a. Solve the equation by first adding x to both sides. b. Solve the equation by first subtracti

ng 9 from both sides. c. Which approach, (a) or (b), did you prefer? Explain.
Mathematics
1 answer:
WITCHER [35]2 years ago
3 0

Answer:

a.x=4

b.x=4

c.(b)

Step-by-step explanation:

We are given that

9-x=5

a. First we adding x on both sides we get

9-x+x=5+x

9=5+x

Now, subtract 5 on both sides we get

9-5=x

x=4

b.

We are subtracting 9 from both sides we get

9-9-x=5-9

-x=-4

x=4

We can solve equation both approach a and b

But I prefer (b) because in approach (b)

There are only 3 step in which we can get answer but in approach (a) we can get answer in 4 steps .

Hence, I prefer approach (b)

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Please help immediately
EleoNora [17]

Answer:

.90(85.00) would give the same result

Step-by-step explanation:

Rhonda is using the total cost of the item ($85.00) multiplied by the discount (10%) to find the total discount:  85 x 0.10 = 8.50.  Once Rhonda subtracts the discount ($8.50) from the total:  $85 - $8.50 = $76.50.  The other way to look at the problem, is that Rhonda is only paying for 90% of the total cost of the items, instead of 100% since she is receiving the 10% discount.  So, she would get the same final total by multiplying the cost of the items ($85.00) by 90%, or 0.90.  

4 0
3 years ago
What is the average rate of change from 7 minutes to 11 minutes
NeTakaya

Answer:

what do you mean?

Step-by-step explanation:

7 0
2 years ago
Which expression is equivalent to 73•7-5
Morgarella [4.7K]

order of operations

BEMDAS:

B - <em>Brackets</em>

E - <em>Exponents</em>

D - <em>Division</em>

M - <em>Multiplication</em>

A - <em>Addition</em>

S - <em>Subtraction</em>

73 • 7 - 5 = 511 - 5 = 506

3 0
3 years ago
Read 2 more answers
Marylou buys a package of 500 jewels to decorate 4 different pairs of jeans. She uses the same number of jewels on each pair of
patriot [66]
500 divided by 4 = 125 so 
125 jewels on each pair of jeans

4 0
3 years ago
What is the answer to this question
julia-pushkina [17]
I hope this helps you



Formula => I=PRT


900=7500.R.2


R=900/15000


R=0,06



3 0
2 years ago
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