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BARSIC [14]
3 years ago
5

Complete the solution of the equation Find the value of y when x equals 11. 7x-9y=23

Mathematics
1 answer:
Setler79 [48]3 years ago
8 0
Replace the variable x with it's value in the equation and solve for y.

7(11) - 9y = 23

77 - 9y = 23

Subtract both sides by 77.

77 - 9y - 77 = 23 - 77

-9y = -54

Divide both sides by -9.

-9y / -9 = -54 / -9

y = 6

So, 6 is the answer.
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The solution for 7(5x+9)=12-(x+9) and simplified​
Charra [1.4K]

Answer:

x= -5/3

Step-by-step explanation:

Step 1: Simplify both sides of the equation.

7(5x+9)=12−(x+9)

7(5x+9)=12+−1(x+9)(Distribute the Negative Sign)

7(5x+9)=12+−1x+(−1)(9)

7(5x+9)=12+−x+−9

(7)(5x)+(7)(9)=12+−x+−9(Distribute)

35x+63=12+−x+−9

35x+63=(−x)+(12+−9)(Combine Like Terms)

35x+63=−x+3

35x+63=−x+3

Step 2: Add x to both sides.

35x+63+x=−x+3+x

36x+63=3

Step 3: Subtract 63 from both sides.

36x+63−63=3−63

36x=−60

Step 4: Divide both sides by 36.

36x/36 and -60/36

x= -5/3

4 0
3 years ago
What is the product? 2 1/3 × 3 1/4
asambeis [7]

Answer:

7.583333 / 7 7/12

Step-by-step explanation:

2 1/3 × 3 1/4

2 1/3=7/3

3 1/4= 13/4

7/3 * 13/4

=91/12

=7 7/12

4 0
3 years ago
How much did it cost summer to to buy 2.6 pounds of granola at the old price
coldgirl [10]
It was $6.00 per pound.  So 2 pounds would be $12.  But there is still that .6 of a pound left.  If we know 1 pound costs $6, then we know 1/10th of a pound will cost $0.60.  So 6 x .60 = 3.60.  Add 12 and 3.60, and you get 15.60 for 2.6 pounds of granola at the old price.
6 0
3 years ago
Read 2 more answers
Find the measure of angle JCA if J is the incenter of the triangle ABC
melamori03 [73]
It would be two times the angle ABC


7 0
3 years ago
Help with number 5 thx
Temka [501]

First, we find the area of the circle.

A = pi * r^2

A = pi * (1 cm)^2

A = pi cm^2

The area of the circle is pi cm^2.

The area of the triangle is also pi cm^2.

Now we use the area of a triangle.

A = (1/2)bh

(1/2)bh = A

(1/2)(3 cm)h = pi cm^2

(3 cm)h = 2pi cm^2

h = (2/3)pi cm

The exact height is \dfrac{2\pi}{3} ~cm

If you want an approximate height, then it is 2.09 cm.

3 0
3 years ago
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