Answer:
n=2
Step-by-step explanation:
7+14 = 7+7*2
7*2=14
1,617 -7 =1,610
1,610: 14 = 115
Al numero 7 se le suma 115 veces el numero 14(que es lo mismo que 7*2)
115*14 = 1,610
7+1,610 = 1,617
I think the answer is x=-1
Option A
<u>Answer:
</u>
The value of x in the equation 2(x - 3) + 5x = 5(2x + 6) is -12
<u>Solution:
</u>
From question given that
2(x - 3) + 5x = 5(2x + 6)
Open the brackets,
2x – 6 + 5x = 10x + 30
Rewrite the above equation,
2x + 5x – 6 = 10x + 30
On simplifying the above equation, we get
7x – 6 = 10x + 30
Now adding 6 on both sides,
7x – 6 + 6 =10x + 30 + 6
7x = 10x + 36
On subtracting 10x on both sides,
7x - 10x = 10x + 36 - 10x
-3x = 36
On dividing -3 on both sides,
x = -12
Hence on simplifying 2(x - 3) + 5x = 5(2x + 6) we get value of x is -12. Hence Option (A) is correct.
Answer:
BC = 33.9
Step-by-step explanation:
here,
AB = 17, BC = ?, AC = 38
By Pythagoras Theorem
AB² + BC² = AC²
BC² = AC² - AB²
BC² = 38² - 17²
BC² = 1444 - 289
BC² = 1155
BC = √1155
BC = 33.9
