Answer:
Step-by-step explanation:
Let her brother's age be x
Sarah age = 2x + 4
The various charges add up, so none of the choices that have minus signs will be appropriate.
The initial deposit of 17 is added to the cost for d hours, which is 5d. The appropriate choice is ...
... D. 17 + 5d
Answer:
3b
Step-by-step explanation:
2x + 4 = b
3(2x+4) = 3b
6x + 12 = 3b
Answer:
Step-by-step explanation:
<u>Given</u>
- Rectangle with sides of 20 in and x+2 in and perimeter of 68 in
<u>Perimeter = 2(l + w)</u>
- l = 20 in, w = x + 2 in, P = 68 in
<u>Substitute values in perimeter formula</u>
- 68 = 2(20 + x + 2)
- 34 = x + 22
- x = 34 - 22
- x = 12 in
<u>Then, the value of width is</u>
<u>Area of rectangle</u>
<u>Area of circle</u>
- A = πr² = 3.14*7² = 153.86
<u>Shaded area </u>
- 280 - 153.86 = 126.14 in²
Here is the solution of the given problem above:
Given: appliance A, B and C: 1 7/8 watts x 3 = 45/8 watts
appliance D : 4 3/4 watts
appliance E : 4 3/4 watts
?: total power used by these appliances
In order to know the total, we just have to add the number of watts.
So we add 45/8 watts plus 38/4 watts. The common denominator for these two fractions is 32. Therefore, the final answer would be 15 4/32 or 15 1/8 watts. The correct answer would be the last option. Hope this answer helps.