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anygoal [31]
3 years ago
5

Which two ratios form a proportion? A) 3 : 4 and 6 : 12 B) 3 : 4 and 9 : 15 C) 3 : 4 and 12 : 18 D) 3 : 4 and 15 : 20

Mathematics
2 answers:
weqwewe [10]3 years ago
4 0
The answer to this question is D
Andre45 [30]3 years ago
3 0

Answer:

d forms a proportion

Step-by-step explanation:

3x5=15,4×5=20

so they both increase protionally

therefore they are protional

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Make k the subject for 3t = 7k/13 - 17 and 7k = 4k/3t - 11t
Lina20 [59]
A)

3t = 7k/13  - 17

3t + 17 = 7k/13

13*(3t + 17) = 7k

7k =  13*(3t + 17)

7k = 39t + 221

k = (39t + 221) / 7

b)

7k = 4k/3t -  11t

11t = 4k/3t - 7k              LCM = 3t

11t =  (4k - 21kt) / 3t

11t*3t = (4k - 21kt)

33t² = k(4 - 21t)

33t² /(4 - 21t)  = k

k =  33t² /(4 - 21t)

I hope this helps.
3 0
3 years ago
If you like hot weather, would you rahter go to a majorca in august,where the average temperature is 80 f , or to rome where the
zhuklara [117]

Since I like hot weather, I would rather go to Rome with a temperature 27-degree c than to Majorca with an average temperature of 80F.

<h3>How do you Convert from Degree to Farhenhite and Vice versa?</h3>

The temperature is converted from Celsius to Fahrenheit using this formula. Scales of temperature offer a means of determining how warm or frigid a body is. Temperature scales include Celsius and Fahrenheit. The Formula of celsius to Farhenhite is  F= 9/5×C+ 32.

To compare the temperatures of both the places, we will first convert them to similar Units so that the comparison becomes easy. We will Change both the units to the Farhenhite unit as follows.

The temperature of Rome:

F = 9/5×27+32

F= 80.6

Therefore the temperature of Majorca is 80F and that of Rome is 80.6. More temperature means more hot weather. Therefore Roma will be hotter in August than Majorca.

To know more about Temperature Conversion, Visit:

brainly.com/question/13421795

#SPJ4

7 0
2 years ago
How can I delete a question?
faltersainse [42]
Do you still need help?
8 0
3 years ago
Read 2 more answers
2y² - 9y - 2 + 4 (y + 1) =​
Nuetrik [128]

♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️

2 {y}^{2}  - 9y - 2 + 4(y + 1) =

2 {y}^{2}  - 9y - 2 + 4y + 4 =

2 {y}^{2}  - 9y + 4y - 2 + 4 =

Collect like terms

2 {y}^{2}  - 5y + 2 =

(2y  - 1 )(y - 2)

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3 0
3 years ago
Read 2 more answers
Define el concepto de triangulo
MrRissso [65]

Answer:

Un triángulo tiene tres lados, tres vértices y tres ángulos. La suma de los tres ángulos interiores de un triángulo es siempre 180 °. La suma de la longitud de dos lados de un triángulo es siempre mayor que la longitud del tercer lado.

3 0
3 years ago
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