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3 years ago

Step by step explanation thanks

Mathematics

1 answer:

ratelena [41]3 years ago

7 0

Answer:

75%

Step-by-step explanation:

$\frac{90}{120}*100=\frac{9}{12}*100=\frac{3}{4}*100=3*25=75%$ %

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Please help thank you

aivan3 [116]

Answer:

a = 4

b = 11

Step-by-step explanation:

To convert the recurring decimals into fraction we will follow the following process.

Given recurring decimal is 0.36363636....

Let x = 0.363636......... (1)

Multiply this decimal with 100.

100x = 36.36363636...........(2)

Now subtract expression (1) from expression (2)

100x = 36.363636.......

99x = 36

x = $\frac{36}{99}$

x = $\frac{4}{11}$

Since, $x=\frac{a}{b}=\frac{4}{11}$

a = 4 and b = 11 will be the answer.

4 0

3 years ago

How many pounds does 6.5 dozen cupcakes weigh?<br> • 1 cupcake = 35.3 grams

melisa1 [442]

Answer:

35.3g * 78 =2,753.4g

2,753.4g = 6.07lbs

6 0

3 years ago

If p is the smallest of four integers, what is their sum interms of P

xxMikexx [17]

Answer:

If p is the smallest of n consecutive integers of the same sign than we have p , p+1 , p+2 , … , p+(n−1) ,

So the sum is

∑k=0n−1(p+k)=∑k=0n−1p+∑k=0n−1k=np+n2−n2

Here n=4

So we have 4p+6

And checking

p+(p+1)+(p+2)+(p+3)=4p+6

Note if p=−v

Than you have the same thing as if p=v−n+1 just negative for example 3 consecutive integers the smallest is −5 so the sum is −5+(−4)+(−3)=3×−5+32−32=−15+3=−12

On the other hand:

−(3+4+5)=−(3×3+32−32)=−(9+3)=−12

If p=−v the sum of next v+1 integers is −(∑k=0vk)=−(v2+v2)

Than needs an other v integers to bring it up to 0 again. From there it is

∑k=0hk=h2+h2

Where h=n−(2v+1) .

So recap if p is the smallest of n consecutive integers their sum is

p+(p+1)+(p+2)+…+(p+(n−1))=⎧⎩⎨⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪⎪np+n2+n2−(n|p|+n2+n2)((n−|p|)2+(n−|p|)2)−(|p|p+|p|2+|p|2)((n−|p|)2+(n−|p|)2)n≥0p<0∧n<|p|+1p<0∧|p|<n<2|p|+1p<0∧n>2|p|+1

Step-by-step explanation:

6 0

3 years ago

Will make the brainly-est due today and all the questions thank you:)

Lyrx [107]

Answer:

Comic Books

a: y=-10x+90

b: He will have 10 books at the end of the seventh day.

Step-by-step explanation:

A: Take two points. The y-intercept is (0,90). The graph decreases by 10 each day.

B: Look at day 8.