All categories

3 years ago

HELP!!! MARKING BRAINLIEST

Mathematics

2 answers:

Ilya [14]3 years ago

4 0

Answer:

Not trying to take points but it is too blurry I can’t see it

Step-by-step explanation:

ella [17]3 years ago

3 0

First, for 3^4, you multiply the number 3 by itself 4 times, so that would be 81. now, let’s figure out what 8 x 7 is. 8 x 7 is 56. now, subtract 56 from 81. your answer is 25! hope this helped!

You might be interested in

For a trip, one high school rented and filled 5 vans and 6 buses with 187 students. Another high school instead fit its 176 stud

serious [3.7K]

Answer:

A bus can carry 22 students and a van can carry 11 students.

Step-by-step explanation:

Let the number of students bus can carry be 'b'.

Let the number of students van can carry be 'v'.

Given:

One High school:

Number of bus = 6

Number of vans = 5

Number of students = 187

So we can say that;

Number of bus multiplied by number of students bus can carry plus Number of vans multiplied by number of students van can carry is equal to Number of students.

framing in equation form we get;

$6b+5v=187$ ⇒ Equation 1

Also Given:

One High school:

Number of bus = 7

Number of vans = 2

Number of students = 176

So we can say that;

Number of bus multiplied by number of students bus can carry plus Number of vans multiplied by number of students van can carry is equal to Number of students.

framing in equation form we get;

$7b+2v=176$ ⇒ Equation 2

Now multiplying equation 2 by 5 we get;

$5(7b+2v)=5\times176$

$35b+10v=880$ ⇒ Equation 3

Now multiplying Equation 1 by 2 we get;

$2(6b+5v)=187\times2$

$12b+10v=374$ ⇒ Equation 4

Subtracting equation 4 from equation 3 we get;

$35b+10v-(12b+10v)=880-374\\\\35b+10v-12b-10v= 506\\\\23b =506\\\\b =\frac{506}{23} =22\ students$

Substituting value of b in equation 2 we get;

$7b+2v =176\\\\7\times 22+2v =176\\\\154+2v=176\\\\2v=176-154\\\\2v =22\\\\v =\frac{22}{2}=11\ students$

Hence A bus can carry 22 students and a van can carry 11 students.

6 0

3 years ago

A company that makes barber scissors has found that the sales volume for barber scissors is directly proportional to the size of

Mice21 [21]

Answer:

20,000 pairs of barber scissors.

Step-by-step explanation:

The sales volume V for barber scissors is directly proportional to the size S of the sales force and inversely proportional to the price P of the scissors.

In other words, we can write that:

$\displaystyle V = \frac{kS}{P}$

Where k is the constant of proportionality.

19,440 pairs were sold in 2013, when there was 54 salespeople and the price was $20 a pair. Hence, V = 19440 when S = 54 and P = 20. Substitute and determine the value of k:

$\displaystyle \begin{aligned} (19440) &= \frac{k(54)}{(20)} \\ \\ 19440 &= \frac{27}{10}k \\ \\ k &=\frac{10}{27}(19440) = 7200 \end{aligned}$

Hence, our equation is:

$\displaystyle V = \frac{7200S}{P}$

We want to determine the sales forecast with 50 salespeople and a price of $18 a pair. Hence, S = 50 and P = 18:

$\displaystyle \begin{aligned} V&= \frac{7200(50)}{(18)} \\ \\ &= 20000\end{aligned}$

In conclusion, 20,000 pairs of barber scissors can be expected to be sold.

8 0

3 years ago

How to do this question?

4vir4ik [10]

She has 3 tops and 3 bottoms if you multiply them you'll get 9. if you do 1,2, & 3 for tops and a, b, & c for bottoms to find the different ways on how she can wear it it'll still be 9.

1 2 3
a b c

1a 2a 3a
1b 2b 3b
1c 2c 3c

8 0

3 years ago

Heart failure is due to either natural occurrences (89%) or outside factors (11%). Outside factors are related to induced substa

Firdavs [7]

Answer:

a) 11% probability that the first patient with heart failure that enters the emergency room has the conditions due to outside factors.

b) 0.0871 = 8.71% probability that third patient with heart failure that enters the emergency room is the first one due to outside factors.

c) The mean number of heart failure patients with the condition due to natural causes that enter the emergency room before the first patient with heart failure from outside factors is 9.09.

Step-by-step explanation:

We have these following probabilities:

89% probability that a patient has heart failure due to natural occurrences.

11% probability that a patient has heart failure due to outside factors.

A) What is the probability that the first patient with heart failure that enters the emergency room has the conditions due to outside factors?

We assume that causes of heart failure between individuals are independent, which means that the probabilities are the same for each patient. So:

11% probability that the first patient with heart failure that enters the emergency room has the conditions due to outside factors.

B) What is the probability that third patient with heart failure that enters the emergency room is the first one due to outside factors?

First two due to natural occurrences, each with 89% = 0.89 probability.

Third due to outside factors, with 11% = 0.11 probability. So

0.89*0.89*0.11 = 0.0871

0.0871 = 8.71% probability that third patient with heart failure that enters the emergency room is the first one due to outside factors.

C) What is the mean number of heart failure patients with the condition due to natural causes that enter the emergency room before the first patient with heart failure from outside factors?

11% with outside factors, so the mean number of patients before the first with outside factors is given by

m = 1/0.11 = 9.09

The mean number of heart failure patients with the condition due to natural causes that enter the emergency room before the first patient with heart failure from outside factors is 9.09.

4 0

3 years ago

Maribel wants to skate 1 1/2 miles on Monday. If she skates 7/10 miles on Monday morning and 4/5 of that distance on Monday afte

balandron [24]

4/5 x 7/10=28/50
7/10+28/50=35/50+28/50=63/50 which is not enough to make 1-1/2 miles
☺☺☺☺

8 0

4 years ago