Answer:
4/5
Step-by-step explanation:
20/25
(5*4)/(5*5)
then,will be cancelled
so
4/5
Answer:
x = 5
Step-by-step explanation:
The area (A) of a triangle is calculated as
A = bh ( b is the base and h is height )
Here A = 20, b = (x + 3) and h = (2x - 5) , then
(x + 3)(2x - 5) = 20 ← multiply both sides by 2
(x + 3)(2x - 5) = 40 ← expand left side using FOIL
2x² + x - 15 = 40 ( subtract 40 from both sides )
2x² + x - 55 = 0 ← in standard form
(x - 5)(2x + 11) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 5 = 0 ⇒ x = 5
2x + 11 = 0 ⇒ 2x = - 11 ⇒ x = - 5.5
But x > 0 , so x = 5
Answer:
Slope intercept form is y = mx + b
m is slope
b is y intercept
y = -4/5x + -9
I only know that first one sry
Step-by-step explanation:
Answer:
58.33% or 58%
Step-by-step explanation:
To find this answer you need to find the amount of students in the classroom that are girls, divide that by the total of 24 students, and multiply that by 100. Since we know that 10 of the students are boys, we would subtract that from 24 in order to get how many are girls, giving us 14 girls. We would then divide 14 by 24, giving us roughly 0.5833. Finally, we would multiply that by 100 in order to get 58.33%.
Hello! I would love to help!
Let's first define solve. Solve means to get the variable, or unknown, by itself. So, we know that we've solved the equation if we get our variable, x, by itself.
Let's look at the problem like this: What number, minus 1/2, is equal to 4?
To solve this problem, let's reverse the order.
X-1/2=4
Since it is -1/2, let's add 1/2 to each side to cancel the one half out, since -1/2+1/2=0
X-1/2+1/2=4+1/2
Now, we can simplify!
X=4 1/2
That is your answer! X=4 1/2 or as an improper fraction 9/2.
If you want more help on questions like this, these two websites might be helpful,
https://www.mathplanet.com/education/pre-algebra/introducing-algebra/equations-with-variables
https://learnzillion.com/lesson_plans/6328-solve-equations-in-one-variable/
Hope this helped! Comment if you have questions!