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4vir4ik [10]
3 years ago
8

Find the value of 7x+3y when x=12 and y=-6​

Mathematics
2 answers:
miv72 [106K]3 years ago
7 0

Answer:

66

Step-by-step explanation:

To get the values we just have to substitute the number of the value

7x + 3y = 7(12) + 3(-6)

84 - 18 = 66

kenny6666 [7]3 years ago
6 0

Answer:

66

Step-by-step explanation:

7 x + 3 = 7 (12) + 3 (-6)

84 - 18 = 66

Substitute the value of the variable into the expression and simplify.

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Find the slope of the lines through the points (2,-5) and (7,1)
ELEN [110]

Answer:slope=1.2


Step-by-step explanation:

Slope=y-y/x-x

=1-(-5)/7-2

= 6/5

=1.2


7 0
3 years ago
(answer fast please, thanks!)
Pachacha [2.7K]

Answer:

$19 for one package of oatmeal cookie dough and $14 for one package of chocolate chip cookie dough

Step-by-step explanation:

We need to set up two equations: one that shows how much money Mike made and one that shows how much money Shawna made.  

Let's make a = price for one chocolate chip cookie dough and b = price for one oatmeal cookie dough.

First equation for Mike: 12a + 3b = 225

Second equation for Shawna: 6a + 11b = 293

Next we isolate b from Mike's equation: b = 75 - 4a

Then we plug this equation into Shawna's equation and we get:

6a + 11(75 - 4a) = 293

Solving for a would get us 14, or $14 for one chocolate chip cookie dough.

If we plug 14 = a into Mike's original equation and solve for b, we get b = 19, or $19 for one oatmeal cookie dough.

Hope this helped!

5 0
3 years ago
Katie has $6,500 in a saving account if she earns 6% interest every month how much money does Katie have in your bank account af
Dennis_Churaev [7]

Answer:

i believe the answer is 2,340

Step-by-step explanation:

6 0
3 years ago
Someone please help me I’ll give out brainliest please don’t answer if you don’t know
natita [175]

Answer:

$14.77

Step-by-step explanation:

5 0
2 years ago
Determine the value of x.
Mama L [17]

Answer:

9

Step-by-step explanation:

because the shape is equal and 106 minus 97 is 9.

6 0
2 years ago
Read 2 more answers
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