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Ilya [14]
3 years ago
12

A boy rides bike at an average speed of 15km/hour, how long will it take him to ride 40km?​

Mathematics
1 answer:
Lorico [155]3 years ago
4 0

Answer:

1 2/3 or 1 hour and 20 mins

Step-by-step explanation:

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Solve for T. B=RT-4/6​
lions [1.4K]
I’m not sure which of these you meant to type so I answered both ways
B=(RT-4)/6 multiply by 6
6B= RT-4. Add 4
6B+4= RT. Divide by R
(6B+4)/R = T


Or B=RT -4/6. Multiply by 6
6B=6RT -4. Add 4
6B+4= 6RT. Divide by 6R
(6B-4)/6R = T. Reduce
(3B-2)/3R = T
8 0
3 years ago
This question has two parts. Be sure to answer both parts of the question. One inequality in a system is shown below. -12x + 3y
fgiga [73]

The inequality is -12x + 3y > 9.

PART A:

The sytem has no solution if inequality does not share a common area. The inequality -12x + 3y > 9 consist the region to left of line -12x + 3y = 9. So for no solution the region to left of equation -12x + 3y = 9 is suitable.

Thus inequality for no solution is, -12x + 3y < 9.

PART B:

For infinite solution the region of both inequality must overlap each other, or the inequality is same with some multiplication of divison factor. So inequality for infinite many solutions is,

\begin{gathered} (-12x+3y>9)\times-1 \\ 12x-3y

Thus inequality for infinite many solution is 12x - 3y < -9.

7 0
1 year ago
This graph shows the function relationship between the number of hours worked and the money earned. Use the information in the g
yaroslaw [1]

Answer:

A) $180

Step-by-step explanation:

7 0
3 years ago
Help please?!?!?!?!?!?!?!?!?!?!?!?!
zubka84 [21]

PEMDAS.

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

Lets apply that here.

72-[(3x2^3)+48]

So first we start with (3x2^3)

2^3=8

3*8=24

now we do 24+48 which equals 72

now we have 72-72 which equals zero.

So

72-[(3x2^3)+48] = 0

3 0
3 years ago
Read 2 more answers
Which equation is equivalent to
konstantin123 [22]
It is the last equation. You square both sides. 
6 0
3 years ago
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