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Doss [256]
2 years ago
5

A proportional relationship is graphed on the coordinate plane. The line that represents the relationship passes through points

(0,0) and (5,10). What is the unit rate of the proportional relationship?
Mathematics
1 answer:
Stels [109]2 years ago
4 0

Answer:

Step-by-step explanation:

HELLPPPP

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There are 33 of them altogether and pay £311 in total. How many kids are in the family? Adults pay £15 and kids pay £7
Marrrta [24]

Answer:

Step-by-step explanation

  1. Let x be the number of adults and y the number of kids

We can then write this two equations :

          x+y= 33

          15x+7y= 311

  • let's solve the two eaquations

to do that we should combine them both in a way that help us get rid of one of the variables.

             Let's multiply the first equation by -7 to get rid of y by adding it to thr second equation

             -7x-7y= -231

        now add both equations .

              15x+7y-7x-7y=311-231

    we get :  8x = 80

as you notice y is gone and we get a classic easy equation to solve

                x= 80/8

                   = 10

so the number of adults is 10

let's go back to the first equation ( x+y= 33) and replace x with 10

                10+y= 33

                  y= 33-10

                     =23

let's check using the second equation :

            (10*15)+(23*7) = 311

that is true

so :

  •  the number of adults is 10
  • the number of kids is 23
4 0
3 years ago
What is the value of x?<br> sin(4x-10)°=cos(40-x)°
ohaa [14]

Answer:

If sin(4x–10)° = cos(40-x)°, then  x = 20

Step-by-step explanation:

7 0
2 years ago
How does 4/3y = 36??????????
omeli [17]

Answer:

i think 27

Step-by-step explanation:

27 X 4/3y=36y

6 0
3 years ago
Read 2 more answers
5(12-4)=5(12)-5(4) what is this property
kherson [118]

Answer:

distributive property

Step-by-step explanation:

The distributive property is described as

a(b + c) = ab + ac

5(12 - 4) = 5(12) - 5(4) ← is obtained using the distributive property

6 0
2 years ago
Which of the following statements demonstrates the associative property of multiplication? 4 ∙ (3 ∙ 6) = (4 ∙ 3) ∙ 6 6 ∙ 4 = 4 ∙
torisob [31]

Answer:

4 ∙ (3 ∙ 6) = (4 ∙ 3) ∙ 6

Step-by-step explanation:

The associative property of multiplication states that rearranging the parentheses in an expression will not change the result, as shown.

6 0
2 years ago
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