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2 years ago

12

Plsssss help !!!!!! At certain traffic light 10% of the cars passed through have four wheel drive what percentage do not have fo

ur wheel drive? Apex

1 answer:

VMariaS [17]2 years ago

6 0

Answer:

90%

Step-by-step explanation:

If you are going to find out the percent of the car that do not have 4 wheel drive, you take the total amount of car that passed though the stoplight which is 100% . You take this 100% and then subtract the 10% to get the final answer 90%. 90% of the cars do not have 4 wheel drive.

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ants have 6 legs. Elena and Andre write equations showing the proportional relationship between the number of ant legs L Elena w

barxatty [35]

Answer:

Neither are correct.

Step-by-step explanation:

The number of legs = the number of ants * 6.

The relationship is L = 6 a so neither are correct.

7 0

2 years ago

Read 2 more answers

Joshua started cycling at 5:15 pm By 8:09 pm, he has covered a distance of 7250 mWhat was Joshua's average speed during that tim

vivado [14]

The average speed of Joshua during that time is 2500 m/h.

Explanation:

It is given that Joshua started cycling at 5:15 pm. By 8:09 pm he has covered a distance of 7250 m.

The total time taken by Joshua from 5:15 pm to 8:09 pm is

$2 { h } 54 \text { min }=2 \mathrm{h}+\frac{54}{60} {h}$

Dividing we get,

$2 { h } 54 \text { min }=2 \mathrm{h}+0.9 {h}$

Adding, we have,

$2 { h } 54 \text { min }=2.9 {h}$

Thus, the total time taken by Joshua is $2.9 {h}$

To determine the average speed we use the formula,

$speed=\frac{distance}{time}$

where $distance=7250$ and $time=2.9$

Hence, substituting the values we have,

$speed=\frac{7250}{2.9}$

Dividing, we get,

$speed=2500$

Thus, the average speed of Joshua during that time is 2500 m/h.

5 0

2 years ago

Lola bought x pencils that cost $0.25 each and y erasers that cost $0.50. She spent less than $3. Which graph represents Lola’s

ValentinkaMS [17]

I thing you forfot to ipload the graphs! I see no graphs to choose from, just the question itself! Please provide to graphs in order to help. Thanks

6 0

2 years ago

Read 2 more answers

Refer to the figure and find the volume V generated by rotating the given region about the specified line. R3 about AB.

mylen [45]

Answer: V = $\frac{34}{45} \pi$

Explanation:

In the given system of coordinates OXY, the region R₃ is bounded by two functions:

y₁ = $2\sqrt[4]{x}$ (green line)

y₂ = 2x (blu line)

in the intervals:

0 ≤ x ≤ 1

0 ≤ y ≤ 2

We need to find the volume of this region rotated about the line AB, which is x = 1. In order to do so, we need to change system of coordinates, such as the rotation is about the y-axis, therefore we need to perform a translation:

$\left \{ {{X=x+1} \atop {Y=y}} \right.$

After the translation R₃ will be bounded by:

y₁ = $2\sqrt[4]{x+1}$

y₂ = 2x + 2

in the intervals:

-1 ≤ x ≤ 0

0 ≤ y ≤ 2

At this point, we can use the washer method (see picture attached). The general formula is:

A = π(R² - r²)

where:

A = area

R = outer radius of a washer

r = inner radius of a washer

Since the radii are x-values which vary with the height, represented by the y-values, we need to write the inverse functions:

$R: x_{1} = \frac{1}{16} y^{4} - 1 \\ r: x_{2} = \frac{1}{2} y - 1$

[Note: I used the curves on the left side of the graph, but you could find the ones representing the right side of the graph and use those]

Now, we can find the function for the area of each washer:

$A(y) = \pi [(\frac{1}{16}y^{4} - 1)^{2} - (\frac{1}{2}y - 1)^{2} ] \\ = \pi [\frac{1}{256}y^{8} - \frac{1}{8} y^{4} - \frac{1}{4} y^{2} + y ]$

Therefore the volume of the region R₃ will be:

$V = \int\limits^{y_{2}}_{y_{1}} {A(y)} \, dy$

$= \int\limits^2_0 {\pi [\frac{1}{256}y^{8} - \frac{1}{8}y^{4} - \frac{1}{4} y^{2} + y] } \, dy$

$= \pi [ \frac{1}{2304}y^{9} - \frac{1}{40}y^{5} - \frac{1}{12} y^{3} + \frac{1}{2} y^{2}]^{2}_{0}$

$= \frac{34}{45} \pi$

5 0

1 year ago

Read 2 more answers

At a deli counter someone bought 1 3/4 pounds of ham for $14.50 someone bought 2 1/2 pounds of turkey for $26.25 someone bought

AleksAgata [21]

Answer:

The roast beef is most expensive per pound

Step-by-step explanation:

First convert mixed number to an improper fraction

case A) Ham

$1\frac{3}{4}\ pounds=\frac{1*4+3}{4}=\frac{7}{4}\ pounds$

Find the unit rate

$\frac{14.50}{(7/4)}= 8.29\frac{\$}{pound}$

case B) Turkey

$2\frac{1}{2}\ pounds=\frac{2*2+1}{2}=\frac{5}{2}\ pounds$

Find the unit rate

$\frac{26.25}{(5/2)}= 10.5\frac{\$}{pound}$

case C) Roast beef

Find the unit rate

$\frac{5.50}{(3/8)}= 14.67\frac{\$}{pound}$

6 0

1 year ago