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2 years ago

Do the ratios 4/3 and 16/12 form a proportion

Mathematics

2 answers:

mihalych1998 [28]2 years ago

7 0

Answer:

Yes, 4/3 and 16/12 form a proportion

Step-by-step explanation:

$\frac{4}{3} = \frac{16}{12}$

Cross Multiply

$4*12=48$ and $16*3=48$

Therefore, $48=48$

Hence, The ratios 4/3 and 16/12 form a proportion.

[RevyBreeze]

tatiyna2 years ago

3 0

Answer:

yes

Step-by-step explanation:

if the cross-products are equal then the two fractions form a proportion:

is 4(12) = 3(16) ?

yes, 48=48

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Priya drew a circle whose area is 25 cm. Dan drew a circle whose diameter is 4 times the radius of Priya's circle. How many time

Vitek1552 [10]

Answer:

400

Step-by-step explanation:

first work out the radius of priya's circle with the equation a = $\pi r^{2}$

$25 = \pi r^{2}$

$\frac{25}{\pi } = r^{2}$

$r = \sqrt{\frac{25}{\pi } }$

we know the diameter of a circle is 2 times the radius so the diameter of priya's circle is 2x $\sqrt{\frac{25}{\pi } }$

this means that if the diameter of dan's circle is 4 times bigger it must be

8x $\sqrt{\frac{25}{\pi } }$

to find the radius of dan's circle we divide the diameter by to 2 to give

4x $\sqrt{\frac{25}{\pi } }$

then use the a= $\pi r^{2}$ equation again

$a= (4 \sqrt{\frac{25}{\pi } })^{2} \pi$

which equals 400

hope that helped

6 0

3 years ago

Solution to the system<br> y=-x2-3x+2<br> y=x+6

worty [1.4K]

Answer:

$x=-2,y=4$

Step-by-step explanation:

$y=-x^2-3x+2$

$y=x+6$

$x+6=-x^2-3x+2$

$x^2+x+6=-3x+2$

$x^2+4x+6=2$

$x^2+4x+4=0$

$(x+2)(x+2)=0$

$x=-2$

$y=(-2)+6=4$

8 0

3 years ago

Help!! Ill give 100 points!

Volgvan

Answer:

It will take about half an hour more for maria to finish his/her project than Juan.

Step-by-step explanation:

9/10 > 2/6

=> 54/60 > 20/60

=> 34/60

Therefore, it will take about half an hour more for maria to finish his/her project than Juan.

Hoped this helped.

5 0

3 years ago

Read 2 more answers

What is the answer please?

docker41 [41]

Answer: D (bottom option)

Not Congruent

Step-by-step explanation:

Assuming the trapezoids are to scale, they are not the same shape. This means that they could not be congruent even if they were centered on top of each other.

3 0

2 years ago

QUICK! 10 points!

zysi [14]

Answer:

Yes.

Step-by-step explanation:

I had this same question.

4 0

4 years ago