3+x? Is that your whole question?
Answer:
x = 2.3202
Step-by-step explanation:
Given equation:

on taking log both sides, we get

now,
using the property of log function
log(aᵇ) = b × log(a)
therefore,
we get
(3x-5)log(10) = xlog(7)
now,
log(10) = 1
and
log(7) = 0.84509
thus,
( 3x - 5 ) × 1 = 0.84509x
or
3x - 0.84509x - 5 = 0
or
2.15491x = 5
or
x = 2.3202
(1) 3x + 2y = 51
(2) 2x + 4y = 54
2*(1) 6x + 4y = 102
2*(1)-(2) 4x + 0y = 48
Divide by 4: x = 12
y = 7.5
Answer:
y =
x - 8
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = -
x - 1 ← is in slope- intercept form
with slope m = - 
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= 
The equation of a line in point- slope form is
y - b = m(x - a)
where m is the slope and (a, b) a point on the line
Here m =
and (a, b) = (9, - 2), thus
y - (- 2) =
(x - 9), that is
y + 2 =
(x - 9) ← in point- slope form
Distribute right side and rearrange
y + 2 =
x - 6 ( subtract 2 from both sides )
y =
x - 8 ← in slope- intercept form
Answer:
4 4/7
Step-by-step explanation:
8 * 4/7
32/7
7 goes into 32 4 times
4*7 =28
32-28 = 4 There are 4 left over. This goes over the denominator
4 4/7