Answer:
y = 8
General Formulas and Concepts:
<u>Pre-Algebra</u>
- Order of Operations: BPEMDAS
- Equality Properties
Step-by-step explanation:
<u>Step 1: Define equation</u>
48 = y + 5y
<u>Step 2: Solve for </u><em><u>y</u></em>
- Combine like terms: 48 = 6y
- Divide 6 on both sides: 8 = y
- Rewrite: y = 8
<u>Step 3: Check</u>
<em>Plug in y into the original equation to verify it is a solution.</em>
- Substitute in <em>y</em>: 48 = 8 + 5(8)
- Multiply: 48 = 8 + 40
- Add: 48 = 48
Here we see that 48 does indeed equal 48.
∴ y = 8 is a solution of the equation.
Answer:
(D) Blocks: the three age groups. Treatments: using the standard tablet or the reduced blue light tablet before bed. Response variable: Time it takes to fall asleep.
Step-by-step explanation:
So PEMDAS
the order of simplification/operation is
parenthaseese
exponents
multiplication or division whichever comes first
addition or subtraction whichever comes first
so we work the parenthasees inside to out
inside parenthaseese=(10-4/2)
so no exponents so skip
there's division so we do that
4/2=2/1=2
then we have
(10-2)
subtraction
10-2=8
(8)
next parenthaseese/bracket
[5 times (8)+15]
multiplication
5 times 8=40
[40]
other brackets
{390-[40]+15}
subtraction
390-40=350
{350+15}
350+15=365
outside
2 times {365} times 2
multiplication
2 times 365=730
730 times 2=1460
Every answer to number 1 is detailed and is highly based on substitution... please kindly follow me.. I'll try my best to provide the next answer before I fall asleep.. and click on the thanks button..