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kkurt [141]
3 years ago
14

Is there a proportional relationship? A salt water solution for and aquarium calls for 35 parts of salt to 1000 parts of water t

areq used a ratio of 7 parts of salt and 200 parts of water
Mathematics
1 answer:
morpeh [17]3 years ago
7 0

Answer:

Yes

Step-by-step explanation:

To check proportionality :

35 α 1000

35 = 1000k

k = constant of proportionality ;

Divide both sides by 1000 to obtain k

35 / 1000 = 1000k / 1000

0.035 = k

For the ratio Given :

Ratio of 7 parts of salt and 200 parts of water

7 : 200

7 / 200

= 0.035

Since,

k = 0.035 ; 7 / 200 = 0.035

Hence, a proportional relationship exists.

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F(t)=-3t+4 f(__)=19
tangare [24]

Answer:

f(-5)=19, so t= -5

Step-by-step explanation:

We begin with the function f(t). To find when it equals 19, we can set the function equal to 19 and then solve for t

f(x)=-3t+4\\-3t+4=19\\\\-3t=15\\\\t=-5

7 0
3 years ago
There were 94,172 people at a football game, which digit is in the thousand place in this number
Simora [160]

Answer: 4

Step-by-step explanation:

94,172

ten thousands, thousands, hundreds, tens, ones

According to the list of places, 4 is the thousand place in 94,172.

Hope this helps!! :)

Please let me know if you have any question

6 0
4 years ago
Read 2 more answers
There are fifty people standing in the concession line at the movies. Two fifths of them, want to purchase popcorn. One half of
trasher [3.6K]

Answer:

C. 10 people

Step-by-step explanation:

2/5 of 50 = 20

1/2 of 20 = 10

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>,</em><em> </em><em>brainliest</em><em> </em><em>plz</em><em>!</em><em>!</em><em> </em>

3 0
3 years ago
There are 2.54 centimeters in 1 inch. There are 100 centimeters in 1 meter.
erastovalidia [21]

Answer:

12.0396 meters

Step-by-step explanation:

Given that in 1 meter, there are 100 cm, we can write:

1 m = 100 cm   (divide both sides by 100)

1/100 m = 1 cm  

re-writing this equation, we get:

1 cm = 1/100 m  or,

1 cm = 0.01 m

2.54 cm = 2.54 x 0.01 = 0.0254 m, or

2.54 cm = 0.0254 m -----> equation 1

Also given that in 1 inch, there are 2.54 cm, we can write

1 inch = 2.54 cm (substitute equation 1 into this equation)

1 inch = 0.0254m

474 inches = 474 x 0.254 = 12.0396 meters (answer)

3 0
3 years ago
$1900 at 9 for 2 years
vekshin1

Answer:

$342

Step-by-step explanation:

Complete question

Find the simple interest on $1900 at 9% for 2 years.

Simple interest PRT/100

Given

Principal P = 1900

Rate R = 9%

Time T = 2years

Substitute

Simple interest = 1900*9*2/100

Simple interest  = 19*18

Simple interest  = $342

Hence the simple interest on $1900 at 9% for 2 years is $342

7 0
3 years ago
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