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Dimas [21]
2 years ago
14

Solve for x Need help with this last question

Mathematics
1 answer:
Serhud [2]2 years ago
6 0

Answer:

x = 8

Step-by-step explanation:

2(78°) = 20x - 4

156 = 20x - 4

add 4 to each side of the equation:

160 = 20x

divide both sides by 20:

x = 8

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BRAINLYYYY PLUS 100 PointsThe difference between two numbers is 84 and their sum is 278. What are the numbers? Hint( answer is x
den301095 [7]

Answer:

x = 181 and y = 97

Step-by-step explanation:

let called the first number is x

the second number would be called y

We are given that:

x + y = 278 (1)

x = y + 84 (2)

Let change x in (2) into (1):

y + 84 + y = 278

2y + 84 = 278

Subtract 84 from both side, we got:

2y + 84 - 84 = 278 - 84

2y + 0 = 194

Divide both side by 2, we got:

2y / 2 = 194 / 2

y = 97

Because y = 97 and x + y = 278 so x would equal:

x + 97 = 278

Subtract 97 from both side, we got:

x + 97 - 97 = 278 - 97

x + 0 = 181

x = 181 and y = 97

Hope this helped :3

4 0
2 years ago
GEOMETRY PLEASEEE HELP ASAP?!!!!!!!
maksim [4K]
If I’m not mistaken, the answer should be C.
Let me know if I was correct.
8 0
3 years ago
How much interest is earned in 2 years on an investment of $2000? The interest rate is 3%.
Lelechka [254]

 In this sum we will calculate using the simple  interest.


Simple interest is calculated from the formula :

I  = PRT

where I is the interest, P is the principal, R is interest rate per year and t is time in years.

I = 2000 × 3 % x 2

We have to turn 3% to its decimal fraction which is 0.03, so:

I = 2000 × 0.03 × 2

I = 60 ×  2

I = 120

Therefore the interest earned in two years will amount to 120 $


7 0
3 years ago
Answer any of these on the page
andre [41]
63. it's a cube so all you have to do is find the surface area of one side and multiply it by 6 (or you can use the actual formula)

side length^2= 8^2=64
64*6=384cm^2
5 0
3 years ago
Write the number that is 10 less than 526
Leona [35]
To find the answer all you have to do is subtract 10 from 526.

So, 526 - 10 = 516

Hope this helped :)
6 0
3 years ago
Read 2 more answers
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