Answer:
d=![\frac{-9}{13}](https://tex.z-dn.net/?f=%5Cfrac%7B-9%7D%7B13%7D)
Step-by-step explanation:
Original equation: 13d+8=-1
1. Subtract 8 from both sides of the equation to get:
13d=-9
2. Divide both sides by 13 to get:
d=![\frac{-9}{13}](https://tex.z-dn.net/?f=%5Cfrac%7B-9%7D%7B13%7D)
1% of $40 = $0.4
8% of $40 = $0.4 x 8 = $3.2
Total = $43.20
The ratio is 7
If u want to check it just multiply 8x7=56x7= 392 and so on
Answer: option B is the correct answer
Step-by-step explanation:
On her math test, Heidi correctly
answered 35 of the 40 questions. This means the total number of questions in the math test is 40. If she was able to answer 35 correctly, that means the number of questions that she failed is total number of questions - the number of questions that she answered correctly. This becomes 40-35 = 5
This means that she failed 5 questions.
To find the percentage of questions that Heidi answered correctly, we will divide the number of questions that Heidi answered correctly by the total number of questions and multiply by 100%. It becomes
35/40 × 100 = 0.875 × 100
= 87.5%
Heidi answered 87.5% of the total questions correctly
Answer:
Let x rep the lenght of the shorter one
Then the longer one is 2x+1
Therefore
(2x+1) + x = 16
We now solve for x
2x + 1 + x = 16
Group and evaluate like terms
3x +1 = 16
3x = 16 -1
× = 15/3
x = 5
So the shorter one is 5 ft
The longer one is 2(5)+1= 11