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gizmo_the_mogwai [7]
3 years ago
5

3 1/5 ÷(z− 1/2 )=2 2/3 ÷(z+ 1/3 )

Mathematics
2 answers:
maxonik [38]3 years ago
6 0
The answer would be 10 If your take 5x2 your answer would be 10.
love history [14]3 years ago
5 0

Answer:

10

Step-by-step explanation:

if u take 5x2 u get your answer

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Expand and simplify (x+3)(x+5)​
borishaifa [10]
The answer is here written

4 0
2 years ago
Find the sum of integers from 33 to 47:
ICE Princess25 [194]

Answer:

Step-by-step explanation:There are formulas to work this out, but you can also suss out an answer by a liberal application of critical thinking.

Okay, you want to add 51 + 52 + 53 + … + 99 + 100, right? (The … represents all the numbers in between, in case you were wondering.)

Well, that’s a total of 50 numbers. And if you know anything about addition, you know that it doesn’t matter what order you add them.

So you could also say 51 + 100 + 52 + 99 + 53 + 98 + … and so on.

Let’s see what happens. 51 + 100 = 151. So far so good.

Then, 52 + 99 also equals 151. And 53 + 98 also equals 151. Since there are 50 numbers, that’s 25 pairs that are going to add up to 151.

151 + 151 + 151 + 151 + … (21 more instances of 151).

So we can simplify our workload a bit. Instead of adding up all the numbers by hand, we can just multiply 151 by 25.

151 x 25 = 3775

From that, we can work out a generic formula that will allow you to add any sequence of numbers…without actually adding.

Let a be the first number in the sequence, and let n be the last number in the sequence. The number of numbers is (n - a) + 1. (You have to add 1, because if you just subtract, it’s like you’re losing the lowest number in the sequence).

So…you get the sum by adding the first and last number in the sequence, and then multiplying that result by half of the total number of numbers.

(a+n)((n−a)+12)  

an−a2+a+n2−an+n2  

−a2+a+n2+n2  

−a(a−1)+n(n+1)2  

Let’s check to see if it works!

−51(51–1)+100(100+1)2  

−51(50)+100(101)2  

−2550+10,1002  

75502  

3775  

Note that if the starting number were 1, the formula would simplify to  n(n+1)2

8 0
3 years ago
Read 2 more answers
50 points!!! please hurry i need this answer . see pic below
Elza [17]

Sum of two Interiors=Exterior

\\ \rm\rightarrowtail x+20+3x-7=7x-17

\\ \rm\rightarrowtail 4x+13=7x-17

\\ \rm\rightarrowtail -3x=-30

\\ \rm\rightarrowtail x=10

m<NOP=7(10)-17=70-17=53

8 0
2 years ago
A teacher handed out 10 notebooks in packs with 5 notebooks in each pack. How many packs were there?
lozanna [386]

Answer:

2 packs

Step-by-step explanation:

Since there is 10 packs just divided it by how many notebooks were in the pack.

7 0
3 years ago
She once sang in the choir, and wore pretty clothing. Did I use the comma right ?
kolezko [41]
I think there is no need to have a comma in this sentence
6 0
3 years ago
Read 2 more answers
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