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alina1380 [7]
3 years ago
13

Is 5 a solution to the equation x + 3 = 8

Mathematics
2 answers:
Yuki888 [10]3 years ago
6 0
Yes because when you replace x with 5 you get the equation 5+3=8 and 5+3 is in fact 8 so 8=8
brilliants [131]3 years ago
3 0
<h2><u>Answer: </u></h2><h2>  \boxed{x=5}</h2><h2 /><h2><u>Solution Steps: </u></h2>

______________________________

<u />

<h3>1.) <u>Subtract 3 from both sides:</u></h3>
  • 3-3= Cancels Out
  • 8-3=5

 - When solving problems like these (One-Step Equations,) to get x alone you must do the opposite of what you see.

- In this situation we have a positive 3. So to get rid of both numbers you do the opposite: Opposite of +3 is -3. So you subtract 3 from each number.

______________________________

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Evaluate the<br> expression below when<br> a= -5 and b= 2<br> 0.5a - 2b
mario62 [17]

Answer:

Step-by-step explanation:

0.5(-5) - 2(2)

= -0.25 - 4

= -4.25

8 0
3 years ago
If f(x) = 5x, what is f-1x
Georgia [21]

Answer:

The inverse function is 1/5x

Step-by-step explanation:

f(x) = 5x

We want to find the inverse

y = 5x

Exchange x and y

x = 5y

Solve for y

Divide by 5

1/5x = y

The inverse function is 1/5x

7 0
4 years ago
Brass contains copper and zinc in the ratio 2:1. How much ZINC is there in 750 g of brass?
BaLLatris [955]

Answer:

250

Step-by-step explanation:

copper: zinc : total

2              1      2+1 =3

We have 750 brass

750/3 = 250

Multiply each by 250

copper: zinc : total

2*250     250  3*250

500        250       750

4 0
4 years ago
If x = 2 and y = -3, what is the value of 2x^2−3xy−2y^2<br> HELPPP
oksano4ka [1.4K]

Answer:

8

Step-by-step explanation:

2(2)^2‒3(2*‒3)‒2(‒3)^2

2*4‒3(‒6)‒2(9)

8‒(‒18)‒18

8+18‒18

26‒18

8

i think it is easy to understand &i hope it will helps you

8 0
3 years ago
Which expression is equivalent to 4(n + 5)?<br> 4n<br> 24n<br> 4n + 9<br> 4n + 20
Tasya [4]
The answer is : 4n+20
5 0
3 years ago
Read 2 more answers
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