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3 years ago

15

Jessie's bus ride to school is 5 minutes more then 2/3 the time roberts bus ride. if jessie's time riding the bus is y and rober

t's time riding the bus is x write an equation to represent the situation

1 answer:

Rainbow [258]3 years ago

7 0

X=2/3y because you want to know what roberts time is

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arah is keeping up with how many miles her car gets per gallon. She starts with a full tank. After 448 miles, she fills up with

baherus [9]

Since a coordinate is written as (x,y) then the x-value is 14 and the y-value is 448. Therefore, the answer is 448. Hope I helped!

5 0

3 years ago

The radius of the base of a cylinder is decreasing at a rate of 121212 kilometers per second. The height of the cylinder is fixe

WARRIOR [948]

Answer:

7536 $km^3/sec$

Step-by-step explanation:

Given that:

Rate of decreasing of radius = 12 km/sec

Height of cylinder is fixed at = 2.5 km

Radius of cylinder = 40 km

To find:

The rate of change of Volume of the cylinder?

Solution:

First of all, let us have a look at the formula for volume of a cylinder.

$Volume = \pi r^2h$

Where $r$ is the radius and

$h$ is the height of cylinder.

As per question statement:

$r$ = 40 km (variable)

$h$ = 2.5 (constant)

$\dfrac{dV}{dt} = \dfrac{d}{dt}\pi r^2h$

As $\pi, h$ are constant:

$\dfrac{dV}{dt} = \pi h\dfrac{d}{dt} r^2\\\Rightarrow \dfrac{dV}{dt} = \pi h\times 2 r\dfrac{dr}{dt} \\$Putting the values:$\\\Rigghtarrow\dfrac{dV}{dt} = 3.14 \times 2.5\times 2 \times 40\times 12 \\\Rigghtarrow\dfrac{dV}{dt} = 7536\ km^3/sec$

4 0

3 years ago

Round to the nearest tenth 43

bazaltina [42]

40 because the three in the units place is smaller than 5 so you round down.

4 0

3 years ago

Read 2 more answers

Hellllp pleaseeeee !

Ann [662]

The answer is false. I hope this helps love! :)

3 0

3 years ago

Nancy sells handcrafted bracelets at a flea market for $6. If her monthly fixed costs are $625 and each bracelet cost her $1.75

Mandarinka [93]

148, 6-1.75=5.25, then.... 625/5.25& round up.... its 148.

7 0

2 years ago