The difference of three times a number and five is four. Then the number is 3
<u>Solution:</u>
Given that,
Difference of three times a number and five is four
We have to find the number
Let us frame a equation using the given information and solve the sum
Let the number be "n"
Difference of three times a number and five = 4
Three times n - 5 = 4
3n - 5 = 4
3n = 9
On dividing 9 by 3 we get 3
n = 3
Thus the required number is 3
We can draw this as:
We can use the Pythagorean theorem to find the length of the cable, as it is the hypotenuse of a right triangle:
![\begin{gathered} c^2=7^2+8^2 \\ c^2=49+64 \\ c^2=113 \\ c=\sqrt[]{113} \\ c\approx10.63 \end{gathered}](https://tex.z-dn.net/?f=%5Cbegin%7Bgathered%7D%20c%5E2%3D7%5E2%2B8%5E2%20%5C%5C%20c%5E2%3D49%2B64%20%5C%5C%20c%5E2%3D113%20%5C%5C%20c%3D%5Csqrt%5B%5D%7B113%7D%20%5C%5C%20c%5Capprox10.63%20%5Cend%7Bgathered%7D)
Answer: the cable length is 10.63 m.
Answer:
the answer is 84
Step-by-step explanation:
(4(1) +10)+8(5)-10(-3)
4+10+40+30
=84
6x +5 = 8x after make the common denominator on both sides
5 = 2x
x = 5/2
hope this will help you