Answer:
<u>The answer is 4√5</u>
Step-by-step explanation:
Simplify 2√5 + 3√5 - √5
We can simplify this operation this way:
√5 (2 + 3 - 1) or (2 + 3 - 1)√5
Now, we resolve the operations inside the parenthesis:
√5 (5 - 1) = √5 (4) = 4√5 or (5 - 1) √5 = (4) √5 = 4√5
<u>So, the result of the simplification of this operation is 4√5.</u>
Answer:
26
Step-by-step explanation:
Let x represent the missing number
![8\frac{11}{15} = 7\frac{x}{15}](https://tex.z-dn.net/?f=%208%5Cfrac%7B11%7D%7B15%7D%20%3D%207%5Cfrac%7Bx%7D%7B15%7D%20)
Convert both fractions to improper fractions
![\frac{131}{15} = \frac{105 + x}{15}](https://tex.z-dn.net/?f=%20%5Cfrac%7B131%7D%7B15%7D%20%3D%20%5Cfrac%7B105%20%2B%20x%7D%7B15%7D%20)
Cross multiply
![15(105 + x) = 15(131)](https://tex.z-dn.net/?f=%2015%28105%20%2B%20x%29%20%3D%2015%28131%29%20)
![1,575 + 15x = 1,965](https://tex.z-dn.net/?f=%201%2C575%20%2B%2015x%20%3D%201%2C965%20)
Subtract both sides by 1,575
![15x = 1,965 - 1,575](https://tex.z-dn.net/?f=%2015x%20%3D%201%2C965%20-%201%2C575%20)
![15x = 390](https://tex.z-dn.net/?f=%2015x%20%3D%20390%20)
Divide both sides by 15
![x = \frac{390}{15}](https://tex.z-dn.net/?f=%20x%20%3D%20%5Cfrac%7B390%7D%7B15%7D%20)
x = 26
Answer:
30
Step-by-step explanation:
4t^2-6 when t is 3
Since we know t=3, we can substitute that in
4(3^2) - 6
Simplify.
3^2 = 9
= 4(9) - 6
= 36 - 6
= 30
Answer:
she would have to pay 42 dollars for 14 rides
so $3 for each ride 3* 14 is 42 or just add 3, 14 times