Answer: <em>The correct options are.....</em>
<em>A) and</em>
<em>B) </em>
Step-by-step explanation:
Suppose, the number of e-mails Danette had in her inbox before she started reading was .
Percentage of read emails is 80%, so the number of read emails
<u>Thus, the number of unread emails</u> , <u>which is given as</u> .
So, the equation will be........
Thus, the expressions which could represent the number of e-mails Danette had in her inbox before she started reading are: or
The sum of the angles in a triangle is 180°, so the angles do form a triangle. Since two of the three angles are congruent, the triangle is an isosceles triangle. An infinite number of isosceles triangles exist with different side lengths.
Therefore, more than one triangle exists with the given angle measures.
Answer:
21/40
Step-by-step explanation:
We can make the equation: 48/7 * x = 18/5
After simplifying it: x = 3/5 * 7/8
Answer: x = 21/40
Therefore, the answer is 21/40
2x+3y=6
3y=-2x+6
3y/3=-2x+6/3
Y=-2/3x+2
Answer:
Area = 27 cm²
Step-by-step explanation:
let L be the length of the rectangle
w the width
P the perimeter
A the area
<u>Formulas</u> :
P = 2×(L + w)
A = L × w
<u>We are Given</u> :
L = 3w
P = 2×(L + w)
⇔ 24 = 2×(3w + w)
⇔ 24 = 2×4w
⇔ 24 = 8w
⇔ w = 24/8 = 3
Then
L = 3w = 3×3 = 9
We obtain L = 9 and w = 3.
Then
A = L × w
= 9 × 3
= 27