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Natalija [7]
3 years ago
11

Sydney and Tom each count the number of steps it takes for them to walk to school. They each count a 4 digit number of steps. To

tal number of steps is also 4 digit. What is the greatest possible digit in the thousands place for Sydney's or Tom's steps?
Mathematics
1 answer:
lesantik [10]3 years ago
7 0

Answer:

8

Step-by-step explanation:

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Please help with this question!! I need serious help!!
asambeis [7]

Answer:

<h2>The circumference is multipled by 4.</h2>

Step-by-step explanation:

The formula of an area of a circle"

A=\pi r^2

The formula of a circumference of a circle:

C=2\pi r

The area multipled by 16:

16A=16\pi r^2\\\\16A=\pi(4^2r^2)\\\\16A=\pi(4r)^2

The radius has increased fourfold, therefore:

C'=2\pi(4r)=4(2\pi r)=4C

The circumference is multipled by 4.

You can calculate the area and check the circumference:

r=11.6\ in\\\\A=\pi(11.6)^2=132.56\pi\\\\16A=(16)(134.56\pi)=2152.96\pi\ in^2

Calculate the radius:

\pi r^2=2152.96\pi             <em>divide both sides by π</em>

r^2=2152.96\to r=\sqrt{2152.96}\\\\r=46.4\ in

Calculate the circumference of both circles:

r=11.6\ in\\\\C=2\pi(11.6)=23.2\pi\ in

r=46.4\ in\\\\C'=2\pi(46.4)=92.8\pi\ in

\dfrac{C'}{C}=\dfrac{92.8\pi}{23.2\pi}=4\to C'=4C

5 0
3 years ago
In a shortage caused by a hurricane gas prices rose 15% it is now $2.80/gallon what was the price before
mash [69]

2.80*.15=.42

2.80-.42= 2.38

the answer is $2.38 (this was the price before)

8 0
3 years ago
Can the sides of a triangle have lengths 1, 3, and 10?
Troyanec [42]

Answer:

yes the sides of a triangle can have all those sides

3 0
3 years ago
6. Dina is moving and he is going to rent a moving van. She will need it for one day. The cost of renting the van $145 for the d
Marat540 [252]

Answer:

403.75

Step-by-step explanation:

we can write the following equation

.75m+145=price

we just need to plug in 345 for m

.75*345+145=price

put this into a calculator and get 403.75

6 0
3 years ago
Solve.
jekas [21]
<span>A. {+8) is the answer
</span>
6 0
3 years ago
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