2 answers:
Answer:
1. y = 7
2. y = 6
3. y = 7/2
4. y = 8
Step-by-step explanation:
I searched it up and found the answer.
<h3>
<u>Solution</u> <u>:</u> </h3>
<em>Let's </em><em>solve </em><em>each </em><em>equation </em><em>one</em><em> </em><em>by </em><em>one </em><em>:</em>
➝ 7y + 7 = 56
➝ 7y = 56 - 7
➝ 7y = 49
➝ y = 49 / 7
➝ y = 7
<u>4</u><u>2</u><u> </u><u>-</u><u> </u><u>6</u><u>y </u><u>=</u><u> </u><u>6</u> ➝ 42 - 6y = 6
➝ - 6y = 6 - 42
➝ - 6y = - 36
➝ y = -36 / - 6
➝ y = 6
<u>(</u><u> </u><u>y </u><u>+</u><u> </u><u>1</u><u> </u><u>)</u><u>²</u><u> </u><u>=</u><u> </u><u>9</u> ➝ ( y + 1 )² = 9
➝ y + 1 = √ 9
➝ y + 1 = 3
➝ y = 3 - 1
➝ y = 2
<u>1</u><u> </u><u>+</u><u> </u><u>7</u><u>2</u><u> </u><u>/</u><u> </u><u>y </u><u>=</u><u> </u><u>1</u><u>0</u> ➝ 1 + 72 / y = 10
➝ 72 / y = 10 - 1
➝ 72 / y = 9
➝ 72 = 9y
➝ 9y = 72
➝ y = 72 / 9
➝ y = 8
You might be interested in
8 more red circles because if you have 9 red circles and 3 blue ones the ratio would be 9:3 and if you simplify that down to 3:1 that’s the answer. So you would need to add 8 more red circles
D) there is not enough information
Answer:
a) b ≈ 100
b) m ≈ 30
Step-by-step explanation:
Answer: 0. 327
Step-by-step explanation:
I just used a demos calculator I suggest using demos scientific calculator.
Step-by-step explanation:
(4x-23)2-3=2
(4x-23)(-1)=2
4x-23= -2
4x= -2+23
=21
x=21/4
=5.2
