3 years ago

How can you isolate the variable in x-3 = 7

Mathematics

1 answer:

anzhelika [568]3 years ago

3 0

Answer:

x = 10

Step-by-step explanation:

To isolate the variable (x) you would first write out x - 3 = 7. Now to make x on its own we have to get rid of the -3 so to do that we would add the reciprocal of -3 (or the opposite) which is +3. x - 3 + 3 = 7 + 3 or x = 10.

You might be interested in

What is 6 times 2/3 (two thirds)?

r-ruslan [8.4K]

The answer would be four

7 0

3 years ago

Read 2 more answers

Darius takes his family on an afternoon boat ride. Going through york canal, he drives 5 miles in 15 minutes. Later on as he cro

Arisa [49]

C- the distance traveled in York canal is one half the distance traveled on strover lake

-HOPE IT HELPS

3 0

3 years ago

James had $200 he wanted to buy a pen which cost $5 how many pens can he buy?

liq [111]

200/5=40
He can buy 40 pens!!
Hope this helps!!

3 0

3 years ago

I a, very confused on what the answer is to blank- 3/10=1/5

Yuri [45]

Answer:

a = 1/2

Step-by-step explanation:

a - 3/10 = 1/5

Add 3/10 to each side

a - 3/10 +3/10 = 1/5+3/10

a = 1/5+3/10

Get a common denominator

a= 1/5*2/2 +3/10

a = 2/10 +3/10

a = 5/10

Divide the top and bottom by 5

a = 1/2

4 0

3 years ago

Question 12 (1 point) Given P(A) 0.34, P(A and B) 0.27, P(A or B) 0.44, what is P(B)? Answer in decimal form. Round to 2 decimal

Tema [17]

Answer: The required probability of event B is P(B) = 0.37.

Step-by-step explanation: For two events A and B, we are given the following probabilities :

P(A) = 0.34, P(A ∩ B) = 0.27 and P(A ∪ B) = 0.44.

We are to find the probability of event B, P(B) = ?

From the laws of probability, we have

$P(A\cup B)=P(A)+P(B)-P(A\cap B)\\\\\Rightarrow 0.44=0.34+P(B)-0.27\\\\\Rightarrow 0.44=0.07+P(B)\\\\\Rightarrow P(B)=0.44-0.07\\\\\Rightarrow P(B)=0.37.$

Thus, the required probability of event B is P(B) = 0.37.

6 0

3 years ago