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lys-0071 [83]
3 years ago
12

Can somone help me pls

Mathematics
1 answer:
Nastasia [14]3 years ago
4 0

Answer:

x = 9

Step-by-step explanation:

First equation = 4x - 8

Second equation = 7x - 35

Seperate the equation with an equal sign to make it an equality equation and solve for X so :

4x - 8 = 7x - 35 (Given)

-3x - 8 = -35 (Subtraction property of equality)

-3x = -27 (Addition property of equality)

x = 9 (Division property of equality)

Solution:

x = 9

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Variables y and x have proportional relationship and y=21 when x=14 what is the value of x when y=12
Lilit [14]

The value of x is 8 when y = 12 if variables x and y have proportional relationship.

According to the given question.

Variables y and x have proportional relationship.

⇒ y ∝ x

Let k be the constant of proportionality.

⇒ y = kx

Also, it is given that

y = 21 when x = 14

Substitute the value of y = 21 and x = 14 in y = kx to find the value of k.

21 = k(14)

⇒  k = 21/14

⇒ k = 3/2

Therefore, the value of x when y = 12

y = kx

⇒ 12 = (3/2)x

⇒ 12 × 2 = 3x

⇒ 24 = 3x

⇒ x = 24/3

⇒ x = 8

Hence, the value of x is 8 when y = 12.

Find out more information about proportional relationship here:

brainly.com/question/12917806

#SPJ4

8 0
2 years ago
Read 2 more answers
What is the volume of the cylinder?
alexdok [17]
150 if I'm not wrong
8 0
3 years ago
City A has an elevation of 3447 feet above sea level while city B has an elevation of 86 feet below sea level. How much higher i
Rainbow [258]
Add both distances to find the total distance between them: 3447+86=3533 ft.
7 0
3 years ago
Rachel traveled to five different areas (A, B, C, D, and E) to study the number of buckeye butterflies and the number of monarch
Ivenika [448]

Answer:

As we can see our our ration in Area B and Area D gives the same answer, so they are in proportion

Step-by-step explanation:

Given that

Rachel traveled to 5 areas to find  number of Buckeye and Monarch butterflies.

Areas Rachel Traveled to = A, B, C, D, E

The table given below shows her findings.

Area            Buckeye          Monarch

A                     15              16  

B                      27              36  

C                     12              25  

D                      24              32  

E                      44              33

Now lets find the ratio of Buckeye and Monarch Butterflies in these areas

Area A

Buckeye : Monarch = 15:16 = 0.9375

Area B

Buckeye : Monarch = 27:36 = 0.75

Area C

Buckeye : Monarch = 12:25= 0.48

Area D

Buckeye : Monarch = 24:32 = 0.75

Area E

Buckeye : Monarch = 44:33 = 1.334

As we know that if two ratios give same answer after solving the fraction then these ratios are in proportion.

As we can see our our ration in Area B and Area D gives the same answer, so they are in proportion.


4 0
3 years ago
Read 2 more answers
(06.01 LC)
mariarad [96]
3 outliers. because there are 3 points that are outside of the strong correlation. basically, the points that are hanging outside of all the other points.
4 0
4 years ago
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