Helpi forgot which one it was

Mathematics

2 answers:

Nikitich [7]2 years ago

6 0

Answer:

Please Excuse My Dear Aunt Sally

Step-by-step explanation:

mamaluj [8]2 years ago

3 0

Answer:

PEMDAS

Step-by-step explanation:

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4/6 + 1/3 please help i need to get my grade up qwq

avanturin [10]

<h3>Answer: 1</h3>

Explanation:

1/3 is the same as 2/6

Imagine cutting a cake into thirds, then cutting each piece in two parts, so you'll have 6 pieces total. If you shade one third of the cake, then this is the same as shading 2/6 of a cake. The diagram shows this below.

Therefore 4/6 + 1/3 is the same as 4/6 + 2/6

At this point, we add the numerators over the common denominator

4/6 + 2/6 = (4+2)/6 = 6/6 = 1

Meaning we get a full cake since 4/6 is four slices and 2/6 is another two slices leading to 4+2 = 6 slices total out of the 6 overall.

4 0

3 years ago

A total of $7000 is invested: part at 8% and the remainder at 12%. How much is invested at each rate if the annual interest is $

Ivahew [28]

We invested $7000 invested in two accounts, we don't know how much exactly is in each account, therefore we will assign variables to these amounts. The amount invested in the "8%" account is "x", while the other one is "y". The sum of these two numbers must be equal to $7000, therefore:

$x+y=7000$

The sum of interest of each account should be equal to 580, therefore:

$0.08\cdot x+0.12\cdot y=580$

We need to solve the system in order to determine the values.

$\begin{gathered} \begin{cases}x+y=7000 \\ 0.08x+0.12y=580\end{cases} \\ \begin{cases}-0.12x-0.12y=-840 \\ 0.08x+0.12y=580\end{cases} \\ -0.04x=-260 \\ x=\frac{-260}{-0.04}=6500 \\ \end{gathered}$

Now we can replace the value of "x" in the first equation to determine the value of "y".