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Anon25 [30]
3 years ago
13

Pls help if your good at math marking brainliest

Mathematics
1 answer:
LenaWriter [7]3 years ago
8 0

Answer:

Step-by-step explanation:

6x-1=2x+5+4x-6

separate the variables in one side, numbers on the other side

6x-2x-4x=1+5-6

0=0

one solution

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110 freshmen participated in sports or clubs or both. 55 are involved in sports and 68 are involved in clubs. How many students
Varvara68 [4.7K]

Answer: 42

Step-by-step explanation:

Let A represents the number of freshmen participated in sports and B represents the number of  freshmen participated in clubs.

Then , we have given that

n(A)=55\\\\n(B)=68\\\\n(A\cup B)=110

Using formula

n(A\cup B)=n(A)+n(B)-n(A\cap B)

We have,

110=55+68-n(A\cap B)\\\\\Rightarrow\ n(A\cap B)=123-110=13

Now, the number of students are involved in just sports is given by :-

n(A)-n(A\cap B)=55-13=42

Hence, 42 students are involved in just sports.

7 0
3 years ago
The volume of the truck 15 ft cubed. The area of the base of the container is 6 ft squared. What is the height of the clothing t
Helen [10]

Given Information:

Volume of truck = 15 ft³

Area of base of container = 6 ft²

Required Information:

Height of truck = h = ?

Answer:

Height of truck = h = 2.5 ft

Step-by-step explanation:

The volume of the truck is given by

V = l*w*h

Where l is the length, w is the width, h is the height

The area of the base of container is given by

A = l*w

Where l is the length and w is the width.

Substitute the equation of area into the volume of the truck equation.

V = l*w*h

V = (A)*h

Re-arrange for the height,

h = V/A

h = 15 ft³/6 ft²

h = 2.5 ft

Therefore, the height of the clothing truck is 2.5 ft.

8 0
3 years ago
Simplify and Factorise a(a + b - c) - bc
3241004551 [841]
<h2>{2a}^{2}  + ab - ac - bc</h2>

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

= a(a + ab - c) - bc

=  {a}^{2}  +  {a}^{2}  + ab - ac - bc

=  {2a}^{2}  + ab - ac - bc

5 0
4 years ago
Find the arc length of the semicircle. 7the grade
charle [14.2K]

so, is a semi-circle, half a circle, recall a circle has a total of 360°, so half of that will be 180°.

the diameter of that circle is 10, so its radius is half that, or 5.


\bf \textit{arc's length}\\\\ s=\cfrac{\theta \pi r}{180}~~ \begin{cases} r=radius\\ \theta =angle~in\\ \qquad degrees\\[-0.5em] \hrulefill\\ \theta =180\\ r=5 \end{cases}\implies s=\cfrac{(180)(\pi )(5)}{180}\implies s=5\pi \stackrel{\pi =3.14}{\implies s=15.7}

3 0
3 years ago
A tradesman gives 4% discount on the marked price and gives 1 article free for buying every 15 articles and thus gains 35%. By h
Mariana [72]

Answer:

Let the MP of 1 article = Rs 1

MP of 15 article = Rs 15

SP of (15+1) articles = 15 x 96/100

= Rs 14.40

CP of 16 article = 14.40/135 x 100

= Rs 32/3

CP of 1 article = 32/3x16

= Rs 2/3

Required % = 1/3 x 3/2 x 100

= 50

4 0
3 years ago
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