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Lubov Fominskaja [6]
3 years ago
9

Plz help asap this is due in one hour

Mathematics
2 answers:
joja [24]3 years ago
8 0

Answer:

A car travels 20km in 15 minutes, what is the average speed that the car travelled at?

the average speed that the car travelled at is 80km per hour

Step-by-step explanation:

ludmilkaskok [199]3 years ago
5 0

Answer:

1. A bus travels 16km in 4 mins. The total time is 4 minutes.

2. A speeding car traveling at 40 km/hr decides to slow down to 30 km/hr after covering half the distance. The total distance the car travels is 34.29 km/h.

3.  A truck goes from Haryana to Bangalore with an average speed of 60 km/hr. The journey takes 30 hours. It returns from Bangalore to Haryana on the same road with an average speed of 40 km/hr. The average speed of the truck during the road trip is 48 km/hr.

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If six is placed at the end of a two digit number the result is 294 greater than the number, what was the number?
solmaris [256]
If 6 is placed at the right end of AB, so the number is AB6. 
the value of the three-digit number formed is 294 more than AB, means that if AB6 - 294 = AB <span>

</span>AB 6 
- 2 9 4 
AB <span>

</span>6 - 4 = B = 2 <span>

</span>If B = 2, then the tens digit is 2 - 9 (which can't be) so 12 - 9 = 3 = A <span>

</span>A = 3, and B = 2 <span>

</span><span>check: 326 - 294 = 32</span>
6 0
3 years ago
Factor this polynomial completely.<br> x2 - 81
Naddik [55]
The first answer is right
(x - 9) (x + 9)
It’s me again lol
6 0
3 years ago
How to solve 2a^b-4ab^​
Maslowich

Simplifying

2ab + 4ab = 0

Combine like terms: 2ab + 4ab = 6ab

6ab = 0

Solving

6ab = 0

Solving for variable 'a'.

Move all terms containing a to the left, all other terms to the right.

Divide each side by '6'.

ab = 0

Simplifying

ab = 0

6 0
3 years ago
A number n is increased by 8. If the cube root of that results equals -0.5, what is the value of n?
jek_recluse [69]

The cube root of (n increased by 8), or  ∛(n+8), is -0.5, or -1/2.

∛(n+8) = -1/2.  To solve this for n, cube both sides, obtaining n+8 = -1/8.

Eliminate the fraction by mult. all three terms by 8:             8n + 64 = -1

Solving for n:  8n = -65, so that n = -65/8.

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%5Csqrt%7Ba%2Bb%7D%20%7D%7B%5Csqrt%7Ba-b%7D%20%7D%20%2B%5Cfrac%7B%5Csqrt%7Ba-b%7D%20
andrezito [222]

Answer:

\frac{(a+b)}{a^{2} -b^{2}  } + \frac{(a-b)}{a^{2} -b^{2}  } = \frac{2a}{a^{2} -b^{2}  }

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
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