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Elena-2011 [213]
3 years ago
9

Which equation is true when the value of x is 3.5?

Mathematics
2 answers:
MAVERICK [17]3 years ago
7 0
G

•••••••••••••••••••••
Vanyuwa [196]3 years ago
4 0

Answer:

I'll answer it soon brb

Step-by-step explanation:

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HELP!! Giving points: In the system of equations shown, a is the coefficient of x. The system has infinitely many solutions. Wha
olga2289 [7]

Answer:

a=3

Step-by-step explanation:

x – 2y = 4

ax– 6y = 12

To have infinitely many solutions, the two equations have to be equal

Multiply the first equation by 3

3x -6y = 12

ax -6y = 12

a = 3

6 0
3 years ago
Find the
irinina [24]

Answer:

x = 32 degrees

Angle ABC (left one): 153 degrees

Angle CBD (right one): 27 degrees

Step-by-step explanation:

We know that the total angle will be 180 degrees, as it's a continuous straight line.

We can set the sum of our 2 angles equal to 180 degrees and solve for x.

(4x + 25) + (x - 5) = 180

4x + 25 + x - 5 = 180

4x + x + 25 - 5 = 180

5x + 20 = 180

5x = 160

x = 160/5 = 32

x = 32

Angle ABC:

4x + 25 = 4 * 32 + 25 = 128 + 25 = 153

153 degrees

Angle CBD:

x - 5 = 32 - 5 = 27

27 degrees

We can confirm this by adding the 2 angles together. We should get 180 degrees.

153 + 27 = 180

Checks out!

6 0
3 years ago
Read 2 more answers
NEED HELP WITH 13 a-b!!!! PLEASE HELP!!!!!!!
sergij07 [2.7K]

Answer:

a - 6%

b - $7.50

Step-by-step explanation:

The answer for a

the only items that had sales tax were $3.00 and $0.50. The total tax for the both was $0.21 so you can find what percent 0.21 is of 3.00 + 0.50 o 3.50. Do this by dividing the percent you are looking for, 0.21, by what it is the percent of 3.50. 0.21 / 3.50 = 0.06. then you multiply the number you got, in this case 0.06 by 100 to find the percentage so it is 6%

The answer for b

Here you can just take the subtotal, $13.00, and subtract all the other prices and you will be left with the price of the top. 13.00 - 3.00 - 2.00 - 0.50 = 7.50. So the answer is $7.50

8 0
2 years ago
Instructions: Type the correct answer in each box. If necessary, use / for the fraction bar.
Alinara [238K]
The slope of diagonal <em>AB</em> is 0 and its equation is y=2.
7 0
3 years ago
If your smart please help me answer this question .
diamong [38]

Answer:

it should be 30 or something I'm pretty sure that's the answer

8 0
3 years ago
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