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2 years ago

14

I dont understand this but maybe some one will and they will help me. The quotient of a number and -7 decreased by 2 is ten find

the answer

1 answer:

givi [52]2 years ago

8 0

It might be nineteen because nineteen minus seven is twelve. twelve minus two is ten.

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A family has two cars. The first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of

Lubov Fominskaja [6]

<u>Answer:</u>

First car: 35 gallons

Second car: 15 gallons

<u>Step-by-step explanation:</u>

Assuming $x$ to be the gas consumed by 1st car and $50 - x$ to be the gas consumed by 2nd car.

We know that:

Distance traveled = fuel efficiency × gas consumed

$20x+35(50-x)=1225$

$20x+1750-35x=1225$

$35x-20x=1750-1225$

$15x=525$

$x=35$

So $50 - x = 50-35=15$

Therefore, first car consumed 35 gallons while second car consumed 15 gallons.

7 0

2 years ago

Read 2 more answers

2/5 x 6/7= I cant figure out this question.

telo118 [61]

Answer:

I got 0.3428571429

Step-by-step explanation:

I got it by inputting (2/5)*(6/7) into my calculator, but if you need more let me know

4 0

1 year ago

Read 2 more answers

A manufacturer of televisions subjects the equipment to a comprehensive testing process for all essential functions before the t

Vikki [24]

Answer:

The value is $P(X \ge 9) = 0.9138$

Step-by-step explanation:

From the question we are told that

The probability of passing the test is $p = 0.95$

The sample size is n = 10

Generally the distribution of the comprehensive testing of equipment follows a binomial distribution

i.e

$X \~ \ \ \ B(n , p)$

and the probability distribution function for binomial distribution is

$P(X = x) = ^{n}C_x * p^x * (1- p)^{n-x}$

Here C stands for combination hence we are going to be making use of the combination function in our calculators

Generally the probability that at least 9 pass the test is mathematically represented as

$P(X \ge 9) = P(X = 9 ) + P(X = 10 )$

=> $P(X \ge 9) = [^{10}C_9 * (0.95)^9 * (1- 0.95)^{10-9}] + [^{10}C_{10} * (0.95)^{10} * (1- 0.95)^{10-10}]$

=> $P(X \ge 9) = [0.3151] + [0.5987]$

=> $P(X \ge 9) = 0.9138$

7 0

2 years ago

Caden is a bird enthusiast and is trying to estimate the number of hawks living in his region. He traps 23 hawks and tags them.

serious [3.7K]

I believe the answer is 415
PLEASE MARK BRAINIEST!

6 0

2 years ago

PLEASE HELP ME I DONT UNDERSTAND

max2010maxim [7]

Answer:

no

Step-by-step explanation:

the square root of 2 is not rational

5 0

2 years ago