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kotykmax [81]
2 years ago
9

A car travels a certain distance at x km/h in 12 hours. If it travels of the way at km/h and the rest at 4x km/h, how many hours

does it take to travel the way all? ​
Mathematics
1 answer:
geniusboy [140]2 years ago
5 0

Answer:

45 km/h

i hope this work for you

and sory if im wrang

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Adam plans to choose a video game from a section of the store where everything is 75% off. He writes the expression −0.75 to fin
Salsk061 [2.6K]

Answer:

Step-by-step explanation:

Adam plans to choose a video game from a section of the store where everything is 75% off.

The expression written by him for this situation is d - 0.75d.

Here, the part d represents the sale price before discount and the part 0.75d is the discount amount.

The expression written by Rena is 0.25d.

Here, the part 0.25d is the price after discount. Since 75% is the discount, the rate after disount is 25% and 25% of d is 0.25d.

6 0
3 years ago
Freddy’s savings account went from $520 to $321 after he purchased a new bike. What was the percent decrease?
Vinil7 [7]

Step-by-step explanation:

The bike cost $199 to get $199 you do a number line then label 520 then at the end label 321 so then you do -20 then -100 then -50 then -20 then -9. so now you add them up 20+100+50+20+9 which equals =199

so bike cost $199

then 520%×199= 1034.8

or 520%×321=1669.2

so the  percentage is 1669.2 or 1034.8 probably 1669.2 but they bot count.

5 0
2 years ago
Write an equatiob of line in slope intercept from passing through (-10,-8) and parallel to y=1/5x-3
IgorC [24]
Parallel = same slope
Y = 1/5x + b
Plug in point
-8 = 1/5(-10) + b
-8 = -2 + b, b = -6
Equation: y = 1/5x - 6
7 0
3 years ago
2x-3y=-1+3x+3y=26 add the equations
cestrela7 [59]
The answer should be X+6y=27
6 0
3 years ago
What is 6x+3y=-15 in y-intercept form
iren2701 [21]

Answer:

3y = -6x - 15

Step-by-step explanation:

To put 6x + 3y = -15 into Slope Intercept Form you need to know the formula (y = mx + b) so we know we need to get y on its own side so we can -6x  from both side giving us 3y = -6x +-15 or 3y = -6x - 15 There are many different slope intercept forms for this equation depending on how you get y by its self!

8 0
3 years ago
Read 2 more answers
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