Answer:
a. x = 12
b. x = 4
Step-by-step explanation:
a. RECTANGLE
ABCD is a rectangle, AC and BD are its diagonals.
Diagonals of a rectangle are congruent.
Therefore,
AC = BD
10x + 8 = 9x + 20
10x - 9x = 20 - 8
x = 12
b. RHOMBUS
Diagonal of a rectangle bisect opposite angles.
Therefore,
(5x + 3)° = (2x + 15)°
5x + 3 = 2x + 15
5x - 2x = 15 - 3
3x = 12
x = 12/3
x = 4
Answer:
The constant of proportionality is 1.25 and its meaning is the soup price per can
Step-by-step explanation:
The diagram below shows a proportional relationship between the number of cans of soup and the price.
<u>1st:</u>
$3.75 for 3 cans
per can
<u>2nd:</u>
$6.25 for 5 cans
per can
If x is the number of cans and y is the price of x cans, then

This means the constant of proportionality is 1.25 and its meaning is the soup price per can
Answer:
$3.15
Step-by-step explanation:
At $2.10 for 70 slices, the rate is apparently 3¢ per slice. That rate multiplied by 105 slices gives $3.15.
The larger number is 31 because _ - 15 which gets you to that.
Answer:
x > 0
Step-by-step explanation:
It shows on the number line.