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Volgvan
3 years ago
5

Which ordered pair in the form X Y is a solution of this equation (x+6)y=9​

Mathematics
2 answers:
Ghella [55]3 years ago
8 0

Answer:

The system has infinitely many solutions

Step-by-step explanation:

zimovet [89]3 years ago
6 0

when x=3 then y=1

when x=6 then y=-3

HOPE THIS WILL HELP U

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A baker buys 19 apples of two different varieties to make pies. The total cost of the apples is $5.10. Granny Smith apples cost
Natasha2012 [34]

The baker bought 7 gala apples, and 12 granny smiths apples

<em><u>Solution:</u></em>

Let "x" be the number of gala apples bought

Let "y" be the number of granny smith apples bought

Cost of 1 gala apple = $ 0.30

Cost of 1 granny smith apple = $ 0.25

<em><u>A baker buys 19 apples of two different varieties to make pies</u></em>

Therefore,

number of gala apples bought + number of granny smith apples bought = 19

x + y = 19 --------- eqn 1

<em><u>The total cost of the apples is $5.10</u></em>

Therefore, we can frame a equation as:

number of gala apples bought x Cost of 1 gala apple + number of granny smith apples bought x Cost of 1 granny smith apple = 5.10

x \times 0.30 + y \times 0.25 = 5.10

0.3x + 0.25y = 5.1 -------- eqn 2

<em><u>Let us solve eqn 1 and eqn 2</u></em>

From eqn 1,

x = 19 - y ---------- eqn 3

<em><u>Substitute eqn 3 in eqn 2</u></em>

0.3(19 - y) + 0.25y = 5.1

5.7 - 0.3y + 0.25y = 5.1

5.7 - 0.05y = 5.1

0.05y = 5.7 - 5.1

0.05y = 0.6

y = 12

<em><u>Substitute y = 12 in eqn 3</u></em>

x = 19 - 12

x = 7

Thus the baker bought 7 gala apples, and 12 granny smiths apples

6 0
3 years ago
2 3/4 divided by 4 1/8
DochEvi [55]

Answer:

2/3

Step-by-step explanation:

5 0
4 years ago
Read 2 more answers
6 times a number is 27 less then the square of that number find the positive soloution
ella [17]

Answer:

9

Step-by-step explanation:

n2-27=6n

Than n (exponet) 2 - 27 - 6n = 0

Now factor (n-9)(n+3)=0

5 0
3 years ago
Kate has 10 stickers. One half of them are purple. How many of Kate’s stickers are purple?
stiks02 [169]

Answer:

5

Step-by-step explanation:

Half of ten is five  so Kate’s has five purple stickers

8 0
3 years ago
7. (5 + 4 – 2) х (-2) = ?<br> А. 14<br> В. -22<br> с. -14<br> D.22
Talja [164]
Step 1. (5+4-2)x(-2)
Step 2. (7)x(-2)
Step 3. -14
7 0
3 years ago
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