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slamgirl [31]
3 years ago
9

7. What's the sum of 2/5 and 2/4?

Mathematics
2 answers:
NISA [10]3 years ago
5 0

Step-by-step explanation:

2/5+2/4 (find common denominator)

The common denominator is 20

2/5 is 8/20 (multiply by 4)

2/4 is 10/20 (multiply by 5)

8/20+10/20 is 18/20

If you simplify 18/20 this would by 9/10 if you divide by 2

so the total is 18/20 or 9/10 simplified

Hope this helps!!!!

Have a nice day :)

serious [3.7K]3 years ago
4 0

Answer: 9/10

Step-by-step explanation:

2/5 + 2/4

Multiply the two denominators (4×5)= 20

Divide 5 by 20= 4, then multiply by 2= 8

Divide 4 by 20= 5, multiply by 2= 10

8 +10/20 = 18/20; divide by a common value of 2 to simplify the fraction

18/20=9/10

I hope this helps.

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Hellppp plz will mark brainliestttt
AlekseyPX

Answer:

not a function i think

Step-by-step explanation:

have a nice day hope this helps

3 0
2 years ago
What is the 6th term of the geometric sequence where a1 = -4096 and a4 = 64?
Akimi4 [234]
\bf \begin{array}{llccll}
term&value\\
\text{\textemdash\textemdash\textemdash}&\text{\textemdash\textemdash\textemdash}\\
a_1&-4096\\
a_2&-4096r\\
a_3&-4096rr\\
a_4&-4096rrr\\
&-4096r^3\\
&64
\end{array}\implies -4096r^3=64
\\\\\\
r^3=\cfrac{64}{-4096}\implies r^3=-\cfrac{1}{64}\implies r=\sqrt[3]{-\cfrac{1}{64}}
\\\\\\
r=\cfrac{\sqrt[3]{-1}}{\sqrt[3]{64}}\implies \boxed{r=\cfrac{-1}{4}}\\\\
-------------------------------

\bf n^{th}\textit{ term of a geometric sequence}\\\\
a_n=a_1\cdot r^{n-1}\qquad 
\begin{cases}
n=n^{th}\ term\\
a_1=\textit{first term's value}\\
r=\textit{common ratio}\\
----------\\
r=-\frac{1}{4}\\
a_1=-4096\\
n=6
\end{cases}
\\\\\\
a_6=-4096\left( -\frac{1}{4} \right)^{6-1}\implies a_6=-4^6\left( -\frac{1}{4} \right)^5
4 0
3 years ago
Read 2 more answers
Jenny’s favorite store pays $45 for a new type of spring dress. The store’s percent of markup is 75%. After the markup, how much
nydimaria [60]

Answer:

78.75

Step-by-step explanation:

75% of 45 is  33.75

45+33.75 = 78.75

6 0
3 years ago
I need help I don’t understand
lara [203]

you'll first need to understand the symbols, I've attched a cheat sheet :)

you'll need to see if AB is linked to CD reversed.

If not then it's not A

For B you'll have to see if the angles are parralel to each other.

and for C you'll have to see if the angles are the same.

and D is the same as C

so the answer is ab=cd

<h2>now you understand :)</h2>

4 0
3 years ago
1.62 rounded to the nearest tenth
hjlf
The answer to this equation is 1.6
7 0
3 years ago
Read 2 more answers
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