Answer:
11
Step-by-step explanation:
7-(-4) is 11. You must make the subtraction symbol in the middle to addition, since you have 2 negatives. Two negatives = postive. So after you do that it would be 7+4=11
Hope this helped!
Answer:
y = 20°
x = 35°
Explanation:
Equation's:
1) 2y + x + 105° = 180°
2) 3x + x + 2y = 180°
Make y subject in equation 2
3x + x + 2y = 180
4x + 2y = 180
2y = 180 - 4x
y = 90 - 2x
Insert this into equation 1
2(90 - 2x) + x + 105° = 180°
180 - 4x + x + 105 = 180
-3x = -105
x = 35°
Find value of y
y = 90 - 2x
y = 90 - 2(35)
y = 20°
Answer:
3x + 12
Step-by-step explanation:
Distribute the 3
Answer:
90$
Step-by-step explanation:
(12 pairs of jeans * $7.50) / 1 pair of jeans = 90$
Answer:
24 1/6 - 19 5/12=
24 1/6÷12- 19 5/12÷12
24 2/2- 19 5/1= 5 3/1
3÷1= 3
5÷3= 3 1/2
Step-by-step explanation:
Step 1: Do the lcd and the number in between what you do is multiply the number next to it.
Step 2: Then subtract the mixed numbers and you get your answer.
Step 3: Divide 3 by 1
Step 4: Divide 3 by 5 and answer is 3 1/2