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4 years ago

Please help I can't figure it out

Mathematics

1 answer:

Andru [333]4 years ago

3 0

1) the scale factor is 1:2. The length of the actual trail is 16 km
i cant figure out B though

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A cyclist rides her bike at a rate of 12 meters per second. What is this rate in kilometers per hour? How many kilometers will t

IgorLugansk [536]

Answer:

Part 1) The rate is $43.2\frac{km}{h}$

Part 2) $129.6\ km$

Step-by-step explanation:

Part 1)

we know that

A cyclist rides her bike at a rate of 12 meters per second

Remember that

1 hour=3,600 seconds

1 kilometer=1,000 meters

therefore

$12\frac{m}{sec} =\frac{(12/1,000)}{(1/3,600)}=\frac{12*3,600}{1,000}=43.2\frac{km}{h}$

Part 2) How many kilometers will the cyclist travel in 3 hours?

using proportion

$\frac{43.2}{1}\frac{km}{h}=\frac{x}{3}\frac{km}{h}\\ \\x=43.2*3\\ \\x=129.6\ km$

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3 years ago

Steven has 24 stickers 2/6 of them are star stickers how many of the stickers are not star stickers?

AURORKA [14]

4/6 of them are not star stickers because out of them 24 is right now =6/6 so 6/6-2/6star stickers=4/6 are not star stickers

7 0

3 years ago

Read 2 more answers

Como lo puedo resolver?? <br><br> √64 =

ELEN [110]

Answer:

Step-by-step explanation:

7 0

3 years ago

Which of the following statements must be true, given that ABC XYZ and AB = 10 cm?

Jobisdone [24]

Answer:

Option D is correct.

XY = 10 cm

Step-by-step explanation:

Complete Question

Which of the following statements must be true, given that ABC = XYZ and AB = 10 cm?

The diagram for the question is missing.

Solution

The diagram for the question isn't attached.

But from the condition, ABC = XYZ, it is evident that the two triangles are similar according to the SSS congruent theorem.

If all three pairs of corresponding sides of two triangles are proportional, then the two triangles are similar. And from the condition given, we can predict, without seeing the diagram for the question, that

(AB/XY) = (BC/YZ) = (CA/ZX)

We can also predict that the triangles are exactly the same and the proportionality bbetween is 1.

AB = XY

BC = YZ

CA = ZX

Hence, AB = XY = 10 cm.

Hope this Helps!!!

6 0

4 years ago

A company sells 100 - 0.5x shirts

xeze [42]

Answer:

$100

Step-by-step explanation:

We are given that

Company sells shirts=100-0.5x

Charge per shirt=x

We have to find the charge per shirt in order to make $5000 on shirt sales.

According to question

$x(100-0.5x)=5000$

$100x-0.5x^2=5000$

$0.5x^2-100x+5000=0$

$5x^2-1000x+50000=0$

$x^2-200x+10000=0$

$x^2-2\times x\times 100+(100)^2=0$

$(x-100)^2=0$

$x=100,100$

Hence, charge per shirt=$100

6 0

3 years ago