Ratio equal to the ratio given 12:7

Answers

Answer 1

Answer: To find an equal ratio, just multiply both sides of the ratio by the same number.

12:7
12(2):7(2)
24:14

12:7 = 24:14

Answer 2

Answer: as 12:7 = 12/7
therefore to get equivalents of a fraction we multiply the nominator and the denominator with a same no
let us take 2
then, 12x2/7x2 =24/14
your ans is 24/14

Jill needs 8 yards of fabric to make a cape.

Step-by-step explanation:

Givens

Jill needs 4 1/3 yards of blue fabric for the outside of teh cape.
Also she needs 3 2/3 yards of purple fabric for the lining.

In order to know the total number of yards Jill needs to make a cape, we first need to transform each mixed number into fraction. We do that multiplying the whole part with the denominator and then adding it to the numerator, as follows

$4(1)/(3)=(13)/(3) \n3(2)/(3)=(11)/(3)$

Then, we sum both fractions

$(13)/(3) +(11)/(3)=(13+11)/(3)=(24)/(3) =8$

Therefore, Jill needs 8 yards of fabric to make a cape.

Hey there, just subtract 4 1/3 from 3 2/3 to get your answer. 4 1/3=13/3 and 3 2/3=11/3, 13*3-11*3/3*3=39-33/9=6/9, 6/9 simplified is 2/3

-24<2x-4<10
This is for Algebra 1 Please help me!

Answers

Answer:

-12<x<14

Step-by-step explanation:

-24<2x -4<10

-12<x 0<14

-12<x<14

Find the surface area of a sphere with volume 288 pi m^3. Give your answer in terms of Pi.

Answers

Answer:

144 π cubic meters

Step-by-step explanation:

Formula for surface area of sphere is :

S = 4*π* r^2

We know the volume V = 288*π cubic meters.

V = (4/3)*π*r^3

288*π = (4/3)π*r^3

Solve for r.

(3/4)*288 = r^3

r = 6 meters

S = 4 *π*6^2 = 4*36 * π = 144 π cubic meters

From the Great MysticChaCha :-) ...:-)

A lumberman stacks planks of wood, starting with 30 planks in a row. Each row he stacks has one less plank than the row below it. The last row he stacks has 15 planks. How many rows of planks has he stacked?12

15

16

18

Answers

I would say 15. If i am wrong i take full credit.

The minimum ﬁne for driving in excess of the speed limit is $25. An additional $6 is added to the minimum ﬁne for each mile per hour (mph) in excess of the speedlimit. Rachel was issued a $103 ﬁne for speeding in a 55-mph speed limit zone. For driving at what speed, inmph, was Rachel ﬁned?

Answers

Let the excess speed limit be y.

According to your question,

25 + 6y = 103

6y = 103 - 25 = 78

y = 78/6 = 13

Thus, the excess speed was 13 mph.

Thus, speed of Rachel = 55 + 13 = 68mph

Thus, Rachel was driving at 68 mph.

K(n)=2n-2. find k(-4)