All categories

3 years ago

Help me plz I will help u rank up marking u as the brainliest (:

Mathematics

2 answers:

Alexeev081 [22]3 years ago

8 0

The first one is 9/16 you have to make 54 and 96 a fraction such as 54/96 then simplify

the second one is 1/5 you have to make 4 and 20 a fraction like this 4/20 then simplify

hope this helps!!

Murljashka [212]3 years ago

3 0

6: 54:96= 9:16

8:4 gallons:20 pints= 1 gallon:5 pints

You might be interested in

What is the standard form equation of an ellipse that has vertices (18,1) and (−10,1) and co-vertices (4,14) and (4,−12)?

viktelen [127]

Answer: $\frac{(x-4)^2}{196} +\frac{(y-1)^1}{169} =1$

Step-by-step explanation:

You first need to determine if the ellipse is horizontal or vertical, which can be found by the length of the major axis.

The vertices are at (18,1) and (-10,1). The distance is 28 units. (horiz)

The co-vertices are at (4,14) and (4,-12) The distance 26 units (vert)

The major axis is horizontal, so the standard form of the ellipse is

$\frac{(x-h)^2}{a^2} +\frac{(y-k)^2}{b^2} =1$ where (h,k) are the coordinates of the center.

To find the center, find the midpoint of the major axis $(\frac{x1+x2}{2} ,\frac{y1+y2}{2} )$

The center is at (4,1)

Since the major axis is 2a, a would be 28 divided by 2=14 squared : 196

The minor axis is 2b, so b would e 26/2=13 squared: 169

Inserting the center and a,b values into the standard form eq:

$\frac{(x-4)^2}{196} +\frac{(y-1)^1}{169} =1$

hope this helps.

6 0

1 year ago

A train leaves at 10.12 and arrives at its destination at 11.18.

nadezda [96]

Answer:

67.3km/h

Step-by-step explanation:

Find the amount of time it took from 10:12 to 11:18.

Which is 66 minutes.

Find the average speed.

Formula of average speed =

Total distance/time

Which is,

74/66 = 1.121 (recurring decimal)

1.121 x 60 = 67.26km/h

= 67.3km/h (Estimated to 1 dp)

6 0

2 years ago

A football is kicked upward from a height of 6 feet with an initial speed of 70 feet per second. Use the formula to find the bal

Eddi Din [679]

70 ft per sec going upward 3 sec from 6 ft high should reach 216 ft, but unfortunately gravity is pulling it and at some point it starts to go backward (at 2.176 second), so to compensate the upward slowing down and distance dropped, use -32.176 times 3 square times 1/2 = -144.792 which is the natural drop distance if the football is released mid air without a initial speed after 3 seconds. 216 - 144.792 = 71.208 ft high.

4 0

3 years ago

Pls help with number one

LenaWriter [7]

A) You can drop hammer and a feather, both will reach ground at the same time ( it was actually done in Apollo mission)

b) i. Yes, it is similar to weightlessness experienced by astronauts

ii. The phenomenon of "weightlessness" occurs when there is no force of support on your body. When your body is effectively in "free fall" in roller coaster, accelerating downward at the acceleration of gravity, then you are not being supported.
Just like astronauts in space feel no force of support that we on earth feel due to gravity.

6 0

3 years ago

The half-life of a radioactive kind of iodine is 60 days. How much will be left after 240 days, if you start with 480 grams of i

exis [7]

Answer:

30 grams

Step-by-step explanation:

half life is 60 days so every 60 days the amount 480 grams will be half

in 240 days will decay 240 /60 = 4 times

once 480 /2 = 240

twice 240 /2 = 120

trice 120 / 2 = 60

four times 60/2 = 30 grams will be left

6 0

2 years ago