Answer:
B. -7 + 8n
Step-by-step explanation:
-3.5(2 + -3n) + -2.5n = 0
(2 * -3.5 + -3n * -3.5) + -2.5n = 0
(-7 + 10.5n) + -2.5n = 0
0.5n + -2.5n = 8n
-7 + 8n
Answer:
The length of the missing leg is 12 cm.
Explanation:
a² + b² = c² (Pythagoras theorem)
c is the hypotenuse (longest length) of a triangle.
a and b are the two other side of the triangle excluding the longest one.
Let x cm be the length of the missing leg of the right triangle.
x² + 5² = 13² (Pyth. Thm.)
x² = 13² - 5²
x² = 169 - 25
x² = 144
x = √144
x = 12
Hope it helps! Mark me brainliest if it’s correct.
Answer:
18:42 or 42:18
Step-by-step explanation:
Your question isnt clear but for apples to oranges, you ratio would be 18:42
For oranges to apples, you answer/ratio would be 42:18
Hope that helps you.
Answer:
all work is pictured and shown
Answer:
7%
Step-by-step explanation:
The additional tax is $0.42, we just have to find how much percent the tax ($0.42) is of the original cost ($6.00).
To do this, we can use the following formula:
Where x is the part (in this case, the tax ($0.42)), y is the whole (in this case, the original cost ($6.00)), and p being the percent (the tax rate in this case). We can replace the values in:
We can cross multiply and simplify to find the tax rate:
We're not done yet! We still need to turn it to percent. But we can do this by just multiplying our result by 100:
Place the percent sign and we are done.
Hope this helps.