All categories

2 years ago

Help plz due in 10min

Mathematics

2 answers:

JulsSmile [24]2 years ago

4 0

Answer:

1.15

Step-by-step explanation:

NemiM [27]2 years ago

3 0

Answer:

1.15

Step-by-step explanation:

So, first it would be helpful to change this from an improper fraction to a mixed number. Because we have an improper fraction now, we need to make this a mixed number by seeing how many times 23 can go into 20. Twenty-three can't go into 20, but if we take away 3 from 23 it can.

So, now we have 20/20 but with a remainder of 3/20. Because 20/20 = 1, it becomes a whole number of 1 and 3/20. Because there is a whole number of 1, we can put this as the whole number for the decimal. The fraction 3/20 is equal to the decimal 0.15, so we can now put the decimal together now that we have all the parts for the answer needed, which is 1.15.

I hope that this helps.

You might be interested in

9/29/2020

Inga [223]

Answer:

acute and obtuse

Step-by-step explanation:

the acute is less than 90 degrees and obtuse is more than 90 degrees

4 0

3 years ago

I've tried to get the answer for this 13 times now (not joking), plzzz help: write a formula that represents the number of peopl

gtnhenbr [62]

Answer:

2820 seats
aₙ = 3n + 9

Step-by-step explanation:

This is an AP with:

The first term a₁ = 12
Common difference d = 3
Number of terms n = 40

Number of the seats:

Sₙ = 1/2*n(a₁ + aₙ) = 1/2n(2a₁ + (n - 1)d)
S₄₀ = 1/2*40(12*2 + 39*3) = 2820 seats

Formula of nth term:

aₙ = a₁ + (n - 1)d
aₙ = 12 + (n - 1)*3 = 12 + 3n - 3 = 3n + 9
aₙ = 3n + 9

6 0

3 years ago

The mean life of a certain brand of auto batteries is 44 months with a standard deviation of 3 months. Assume that the lives of

alisha [4.7K]

Answer:

99.7%

Step-by-step explanation:

Using the z score formula

z-score is z = (x-μ)/σ

where:

x = raw score

μ = population mean

σ = population standard deviation.

a) for x = raw score = 35

μ = population mean = 44

σ = population standard deviation =3

z = (35 - 44)/3

z = -9/3

z = -3

b) for x = raw score = 53

μ = population mean = 44

σ = population standard deviation =3

z = (53 - 44)/3

z = 9/3

z = 3

We would use the standard normal distribution table to find their probabilities

P(Z<=-3)=0.0013499

P(Z<=+3)=0.99865

So P(-3<=Z<=3)=0.99865 - 0.0013499 = 0.9973

Converting to percentage = 0.9973 × 100 = 99.73%

Therefore, the percentage of auto batteries of this brand that have a life of 35 to 53 months to one decimal place is 99.7%

6 0

3 years ago

Beth had 1/4 box of candy she ate 1/2 of the candy what fraction of the box did she have left

exis [7]

Answer:

1/8

Step-by-step explanation:

If she already had 1/4 of the box left, you just have to split 1/4 in half.

6 0

3 years ago

Read 2 more answers

Apersoncanpay $ 6 foramembershiptotheartmuseumandthengotothemuseumforjust $ 1 pervisit. Whatisthemaximumnumberofvisitsamemberoft

labwork [276]

Now I'm not completely sure of this answer but by my calculations the member can visit at least 36 times with $42.

6 0

3 years ago