All categories

4 years ago

Solve following equation 3+x+1 =2

Mathematics

2 answers:

Rufina [12.5K]4 years ago

5 0

Answer:

x = -2

Step-by-step explanation:

4 + x = 2

-4 -4

x = -2

Hope this helps!!

puteri [66]4 years ago

3 0

Answer:

x = -2

Step-by-step explanation:

first we have to get the variable and the numbers separated

3 + x + 1 - 3 = x + 1

2 - 3 = -1

x + 1 - 1 = x

-1 - 1 = -2

now you have the variable and the number(s) on opposite sides

x = -2

You might be interested in

3 years ago a father was 4 times as old as his daughter is now. The product of their present ages is 430. calculate the present

iren [92.7K]

If the product of the present age of father and his daughter is 430 and the age of father was 4 times as old as his daughter is now, then the present age of father is 43 and the present age of daughter is 10.

Given that the product of the present age of father and his daughter is 430 and the age of father was 4 times as old as his daughter is now.

We are required to find the present age of the father and daughter.

Suppose the present age of the father is x.

Suppose the present age of his daughter is y.

We are given product of present ages be 430.

xy=430----------1

y=430/x

According to question,

x-3=4y

Put the value of y=430/x.

x-3=4*430/x

$x^{2}$ -3x=1720

$x^{2} -3x-1720=0$

x=(3± $\sqrt{3^{2}-4*1*(-1720) }$ )/2*1

x=3± $\sqrt{6889}$ )/2

x=(3±83)/2

x=(3+83)/2

(Ignoring the negative value because the age cannot be negative as it is coming before the greater number)

x=43

y=430/x

y=430/43

y=10

Hence if the product of the present age of father and his daughter is 430 and the age of father was 4 times as old as his daughter is now, then the present age of father is 43 and the present age of daughter is 10.

Learn more about product at brainly.com/question/10873737

#SPJ9

5 0

2 years ago

On a stopwatch, the tip of the second hand moves 2 cm in 15 seconds. How long is the second hand (to the nearest tenth)?

Komok [63]

The 'seconds' hand on the watch goes all the way around in 1 minute. 15 seconds is 1/4 of a complete 1-minute revolution. So, the 2 cm is 1/4 of the way around the circle that the tip makes. This makes the full circumference of the circle 8cm.

The length of the second hand will be the radius of the circle. Use the following equation: 

2 pi radius = circumference

Since we know the circumference, plug that in, and solve for the radius:

2 pi radius = 8 cm
radius = 8cm / 2 pi = 1.27 cm

4 0

4 years ago

Read 2 more answers

Plz help I need help

Gre4nikov [31]

Answer:

The first one: -1 1/4

Step-by-step explanation"

3 0

3 years ago

The graph to the right is called a circle graph or pie chart. The

irga5000 [103]