What is the approximate value of x in the equation below? log5(15)=x+3 –2.523 –1.317 2.880 7.485

Option B is correct.

The value of x is -1.371(approximate)

Explanation:

Given equation: =x+3

Using logarithmic rule:

We can write as;

                [using logarithmic rule]

By graphing calculator the value of = 0.682606194486.

then, we have

substitute this value in [1] to solve for x;

Subtract 3 from both sides we have,

Simplify:

-1.31739381 =x or

x =-1.317 (approx.)

Therefore, the approximate value of x is : -1.317

the ratio of grapes to blueberries she should use is 12: 3

step-by-step explanation:

if mandie is making 15 cups of fruit salad, the ratio of grapes to blueberries she should use is 12: 3.

option c) graph of line going through 1, 4 and 3, 10

step-by-step explanation:

let y equal to margo's coin collection

let x equal to number of years

at the begining x=0, y=1 → point=(x,y)→point=(0,1)

she adds 3 coins per year, then y=1+3x

at x=1, y=1+3(1)=1+3→y=4→point=(x,y)→point=(1,4)

at x=3, y=1+3(3)=1+9→y=10→point=(x,y)→point=(3,10)

the graph of line going through (1, 4) and (3, 10), then the option c is the correct.