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Kipish [7]
3 years ago
15

Express the ratio 7/30: 1/4 in the form of r:s in lowest terms, where r and s are integers

Mathematics
2 answers:
dimulka [17.4K]3 years ago
8 0

Answer:

14:15

Step-by-step explanation:

7:30:1/4  = 7/30* 4/1 =  28/30 = 14/15  = 14:15

Murrr4er [49]3 years ago
6 0

Answer:

14 : 15

Step-by-step explanation:

Given the ratio in fractional form

\frac{7}{30} : \frac{1}{4}

To clear the fractions multiply both by the lowest common multiple of 30 and 4, that is 60

60 × \frac{7}{30} : 60 × \frac{1}{4}

= 2 × 7 : 15 × 1

= 14 : 15

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A chemist is using 336 milliliters of a solution of acid and water. If 19.4 % of the solution is acid, how many milliliters of a
denpristay [2]

Answer:

65.2 milliliters

Step-by-step explanation:

The quantity 336 milliliters is the 100% of the solution. We can represent this information on a table:

Milliliters        Percentage of solution

     336        ⇔            100%

we are told that 19.4% of this solution is acid, and we need to know how many milliliters represents this percentage. I will call the number of milliliters of acid on the solution 'x', and updating the last table:

Milliliters        Percentage of solution

     336        ⇔            100

     x             ⇔            19.4%

We can solve this problem for 'x' using the<u> rule of three</u> which is to multiply the cross quantities on the table (336 by 19.4) and then divide by the remaining amount (100):

x = 336(19.4)/100

x = 6,518.4/100

x = 65.184

which rounding to the nearest tenth is: 65.2 milliliters

8 0
3 years ago
Who is in 6th grade or 7th? <br> cause I swear hrw.com is horrible
LiRa [457]

Answer:

Not me

Step-by-step explanation:

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8 0
2 years ago
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15 qt/h =  gal/min plz I need help
Savatey [412]

1 gallon = 4 quarts.

15 quarts/ 4 = 3.75 gallons

1 hour = 60 minutes

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7 0
3 years ago
Can anybody help this question?
Oxana [17]

Answer:

the first option

Step-by-step explanation:

really, just look at the table.

is the mean value (10.4) larger than the median (13.4) ?

I hope you can see right away that it is not.

and you can see they are not the same either.

so, all the answer options mentioning mean larger than median or equal to median can be ruled out right away.

so, it is between the first two options.

now think ! how do we draw number lines ? a coordinate axis ?

the smaller numbers left, the larger numbers right. the numbers grow from left to right.

the mean value is simply the sum of all measurements divided by the number of measurements (how many median were done). if that is smaller that the median (so, the Mean is left of the Median), it means that the majority of measurements had a result smaller (to the left) than the Median. so, it is skewed-left.

6 0
3 years ago
Who can answer this ??<br> Win BRAINLEST !<br><br> HELP <br> Thank You In Advance !
kirill [66]

ANSWER

( {x - 11)}^{2}  + ( {y - 5)}^{2}  = 16

EXPLANATION

The given circle has center:

(11,5)

and

radius: 4

The equation of a circle with center (h,k) and radius , r is given in standard form as;

( {x - h)}^{2}  + ( {y - k)}^{2}  =  {r}^{2}

We substitute the values into the formula to obtain,

( {x - 11)}^{2}  + ( {y - 5)}^{2}  =  {4}^{2}

( {x - 11)}^{2}  + ( {y - 5)}^{2}  = 16

5 0
3 years ago
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