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3 years ago

Someone help ill give brainliest to the person with an right answer!!!!!

Mathematics

1 answer:

vladimir1956 [14]3 years ago

8 0

Answer:

Step-by-step explanation:

As it is said that they spent more than $15 then its inequality is

m > 15

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Five double-digit numbers We have five consecutive positive double-digit integers. If we swap places on the numbers in the large

barxatty [35]

Answer:

Step-by-step explanation:

Let the numbers are:

x, x + 1, x + 2, x + 3 and x + 4

Their sum is 5x + 10
Their mean is (5x + 10)/2 = x + 2

If we swap the digits on the largest number, the sum increases by 1 more than x + 2

We are looking for the number x + 4 = ab such that:

ba - ab = ab - 2 + 1
ba = 2ab - 1
10b + a = 2(10a + b) - 1
10b + a = 20a + 2b - 1
8b = 19a - 1
19a = 8b + 1

By trial method we get the solution:

a = 3, b = 7

Since x + 4 = 37, the lowest number is:

x = 37 - 4 = 33

Lets verify:

33, 34, 35, 36, 37

The sum is:

5*33 + 10 = 175

The mean is:

Change the largest number tp 73 and find the sum again:

175 + (73 - 37) = 175 + 36 = 175 + 35 + 1

The sum has increased by 1 more than 35

3 0

2 years ago

What’s is the answer to this question ?

gogolik [260]

The answer is -2 (1-4x) = 3x + 8 is 2.

6 0

3 years ago

5+10-20 asdfghjklzxcvbnmmmmmmmmmmmqwertyuiop

Rina8888 [55]

Answer:

-5

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

I need help in mathematics

lapo4ka [179]

Answer:

B. 75.36 cubic cm

Step-by-step explanation:

We will use the formula V=π times r² times h

so, V= 3.14 times 2² times 6

so, V= 3.14 times 4 times 6

= 3.14 times 24

=75.36 cubic cm

<h2>Please mark me as brainliest</h2>

6 0

3 years ago

A rectangular plot of land is to be enclosed by a fence. One side is along a river, and does not need to be enclosed. If the tot

Bad White [126]

Answer:

Width 150 meters.

Length = 350 meters.

Step-by-step explanation:

Let us assume the width of the fence = k meters

So, both sides = k + k = 2k meters

Also, the TOTAL fencing length = 600 m

So, the one side length of the fence = (600 - 2 k) meters

AREA = LENGTH x WIDTH

⇒ A(k) = (600 - 2k) (k)

or, A = -2k² + 600 k

The above equation is of the form: ax² +bx + C

Here: a = - 2 , b = 600 and C = 0

As a< 0, the parabola opens DOWNWARDS.

Here, x value is given as: $x = \frac{-b}{2a}$

Solving for the value of k similarly, we get:

$k = \frac{-b}{2a} = \frac{600}{2(-2)} = 150$

Thus the desired width = k = 150 meters

So, the desired dimensions of the plot is width 150 meters.

And length = 650 - 2k = 650 - 300 = 350 meters.

5 0

3 years ago