MATHEMATICS MIDDLE SCHOOL

Whitch expression is equivlent to the expression
7(3x-2) + 4(x+5)

Answers

Answer 1
Answer:

Answer:

\large\boxed{7(3x-2)+4(x+5)=25x+6}

Step-by-step explanation:

7(3x-2)+4(x+5)\qquad\text{use the distributive property}\ a(b+c)=ab+ac\n\n=(7)(3x)+(7)(-2)+(4)(x)+(4)(5)\n\n=21x-14+4x+20\qquad\text{combine like terms}\n\n=(21x+4x)+(-14+20)\n\n=25x+6
Answer 2
Answer:

Answer:

\Huge \boxed{25x+6}

Step-by-step explanation:

\large \textnormal{Distributive property}, \large \textnormal{A(B+C)=AB+AC}.

\displaystyle 7(3x-2)=21x-14

\displaystyle 21x-14+4(x+5)

\displaystyle 4(x+5)=4x,5* 4=20, 4x+20

\Large\textnormal{Solve to find the answer.}

\displaystyle 21x-14+4x+20=25x+6

\Large \textnormal{Correct answer is \boxed{25x+6}.}

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What is a common denominator of
1
4
and
7
10
?

Answers

Answer:

The common denominator is = 20

Step-by-step explanation:

I'm guessing its

1/4 and 7/10

= 1/4 and 7 /10

Pick the denominator

4 and 10

Find the LCM

2║4║10

2║2║5

5║1 ║5

║1 ║1

2 × 2 × 5 = 20

The common denominator for 1/4 and 7/10 is 20
20 is the common denominator

Answer for a lot of points lolol

Answers

HEYA!!!!


QRS=180°-QRT
=180°-116
=64°

So the answer is C)

Hope it helps you.

:)

QRS is 180 - 116 = 64! The correct answer is C!

Please can someone help me

Answers

36=2(x+6)

36=2x+12

-12=2x-12

24=2x

12=x

(8 : 4) : 2 = 8 : (4 : 2)
O
True
O
False​

Answers

False
Step by step equation

49,321.0594 which is in the tenths place

Answers

the tenths place is nine 


- Foxygirl99 :)

9 mountain bikers are on bicycle trip in how many possible ways can they follow each other

Answers

ok one way is slot method
9 slots
1st slot-9 possible people
2nd slot- 8 people (1 went to 1st slot
3rd slot-7
4th- 6
5th-  5
6th- 4
7th- 3
8th-2
9th-1

so multiply them
9*8*7*6*5*4*3*2*1= 362880

362,880 ways

We could have  9 ways to pick the leader x 8 ways to pick the second place rider x 7 ways to pick the third place rider, etc.

So

9 x 8 x 7 x .....x  3 x 2 x 1  = 9!  = 362880  ways to arrange them
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