Answer:
$49 hours
Step-by-step explanation:
12*40=$480
642-480= $162
$162/18= 9 hours more than 40
40+9=49 hours
Answer:
B and A
Step-by-step explanation:
The diagonals of a rhombus bisect each other at right angles, thus
(3)
y = x + 3 → (1)
3x + 2 = y + 1 → (2)
Substitute y = x + 3 into (2)
3x + 2 = x + 3 + 1
3x + 2 = x + 4 ( subtract x from both sides )
2x + 2 = 4 ( subtract 2 from both sides )
2x = 2 ( divide both sides by 2 )
x = 1 → B
(4)
Substitute x = 1 into (1)
y = 1 + 3 = 4 → A
Answer:
21 drawings
Step-by-step explanation:
7 divided by 1/3
when dividing fractions multiply by the reciprocal
7/1 x 3/1 = 21/1
Answer: 30 for addition and 2376 for multipaction
Step-by-step explanation: Depending on how what algebraic expression.
Since it's a one-variable equation, it has only one solution:
25 - 4x = 15 - 3x + 10 - x
25 - 4x + x = 15 - 3x + 10
25 - 3x = 15 - 3x + 10
- 3x = 15 - 3x + 10 - 25
- 3x = 15 - 3x - 15
- 3x + 3x = 15 - 15
0 = 15 - 15
0 = 0
Hope it helped,
BioTeacher101