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Leokris [45]
3 years ago
10

Solve using substitution. y = 9 5x – 3y = -12

Mathematics
2 answers:
Irina-Kira [14]3 years ago
8 0

Answer:

5x-3(9)=-12

5x-27=-12

+27. +27

5x = 15

÷5. ÷5

x= 3

frosja888 [35]3 years ago
8 0

Answer:

Let's solve for x.

y=95x−3y

Step 1: Flip the equation.

95x−3y=y

Step 2: Add 3y to both sides.

95x−3y+3y=y+3y

95x=4y

Step 3: Divide both sides by 95.

95x

95

=

4y

95

x=

4

95

y

Step-by-step explanation:

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If s is 1/4 and A is 12s square units what is the value of A​
Makovka662 [10]

Answer:

A would be 3 square units.

Step-by-step explanation:

12 × 1/4 = A

12 × 1/4 = 3

A = 3 square units , acknowledging that the value of s is 1/4.

4 0
3 years ago
Please explain the steps on how to solve it! (Answer is selected)
LenKa [72]

Answer:

5x - 2y = -10 (B.) This should be right so if its not let me know I am stumped on what else it would be

Step-by-step explanation:

Parallelism: Same slope but different y-intercept

1 - Get into slope formula

 5x - 2y = 7

<u>- 5x           -5x                </u>

       -2y = -5x + 7

  -2y/-2 = -5x/-2 +7/-2

    y = (5/2)x - 7/2

2 - Plug x and y from (0, 5) into y = mx + b however note the - 7/2 is extranneous and wont be used for b

    y = (5/2)x + b

   5 = (5/2)0 + b

   5 = 0 + b

   5 = b

Therefore

y = 5/2x + 5 is your slope formula.

Now to get x to the other side.

3 - Get it back to standard form.

        y = 5/2x + 5

- 5/2x    -5/2x

- 5/2x + y = 5

(Multiply 2 into everything to get rid of the fraction)

   -5x + 2y = 10

3 0
3 years ago
S=a+b+c/2 solve for c
xenn [34]

Answer:

ggfghfjchd

Step-by-step explanation:

3 0
3 years ago
What times what equals 6 but when added equals 5
ArbitrLikvidat [17]
2 & 3
2+3=5
2x3=6
Hope this helps
6 0
4 years ago
Read 2 more answers
Which mathematical symbol would best fill in the blank to compare the two real numbers? 7.6 repeating blank square root 55
avanturin [10]
The square root of 55 is <span>7.4161984871. which is less than 7.6

So:

</span><span>√55 < 7.6</span>
8 0
3 years ago
Read 2 more answers
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