MATHEMATICS MIDDLE SCHOOL

What is 11(x+10)+5x=11+7x

Answers

Answer 1
Answer:

X = -11.

11(x+10)+5x=11+7x

11x + 110 + 5x = 11 + 7x

(11x + 5x) + 110 = 7x + 11.

16x + 110 = 7x + 11.

16x + 110 - 7x = 7x + 11 - 7x

9x + 110 + 11.

9x + 110 - 110 =11 - 110.

9x/9 = -99/9

X = -11
Answer 2
Answer:

How to get answer by Mimiwhatsup:

11\left(x+10\right)+5x=11+7x\n11\left(x+10\right)+5x\n\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac\na=11,\:b=x,\:c=10\na=11,\:b=x,\:c=10\n\mathrm{Multiply\:the\:numbers:}\:11\cdot \:10=110\n=11x+110\n=11x+110+5x\n11x+110+5x\nGroup\:like\:terms\n=11x+5x+110\n\mathrm{Add\:similar\:elements:}\:11x+5x=16x\n=16x+110\n16x+110=11+7x\n\mathrm{Subtract\:}110\mathrm{\:from\:both\:sides}\n16x+110-110=11+7x-110\nSimplify\n16x=7x-99\n

\mathrm{Subtract\:}7x\mathrm{\:from\:both\:sides}\n16x-7x=7x-99-7x\n\mathrm{Simplify}\n9x=-99\n\mathrm{Divide\:both\:sides\:by\:}9\n(9x)/(9)=(-99)/(9)\nSimplify\n(9x)/(9)=x\n(9x)/(9)\n\mathrm{Divide\:the\:numbers:}\:(9)/(9)=1\n=x\n(-99)/(9)=-11\n(-99)/(9)\n\mathrm{Apply\:the\:fraction\:rule}:\quad (-a)/(b)=-(a)/(b)\n=-(99)/(9)\n\mathrm{Divide\:the\:numbers:}\:(99)/(9)=11\n\nAnswer: -11

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Coach Wilson ordered T-shirts for the basketball team from two different T-shirt suppliers. One supplier charged $16 for each shirt, as well as 5% for shipping. The other supplier charged $18 for each shirt, plus 7% for shipping.Part A

Coach Wilson ordered the same number of shirts from each supplier. Write an equation to find the shipping charges he paid to each supplier.

Part B

The first supplier gave Coach Wilson a discount of 10% off of his order total. The second supplier gave him a discount of $20 off of his order total. Write an equation to find the total cost, T, of the shirts.

Part C

Coach Wilson ordered 15 T-shirts from each supplier. How much did he pay?

Answers

Part A:
# of shirts bought in total (T)times cost of each shirt (E) =X. X times .5 (same as 5%)= shipping charge (S) =
first: T*E=X. second: X*.5=S

Part B:
vendor 1:
# of shirts bought (A) times cost of each shirt (B) plus shipping charge(C) times 10%=T. A*B+C*.10=T

vendor 2:
# of shirts bought (A) times cost of each shirt (B) plus shipping charge (C) minus $20= T. A*B+C-20=T

Part C:

vendor 1:
15*16=240 (total # of shirts * cost of ea.)
240+8= 248 (1st answer + $8 of shipping)
248*.10= 24.80 (2nd answer * 10% discount)
248-24.80= [223.20] (2nd answer - 10%)
vendor 1 total cost: 223.20.


vendor 2:
15*18=270 (# of shirt bought * cost of ea.)
270+12.60=280.60 (answr 1 + shipping cost)
280.60-20=[260.60](answr 2 -$20discount)
vendor 2 total cost: 260.60.

The body of a person who weighs 50 kilograms contains around 2 × 10^2 grams of sodium chloride. How much sodium chloride is contained in the bodies of 1.8 × 10^3 people who each weigh 50 kilograms? Represent the answer in scientific notationA. 3.6 × 10^5 gramsB. 1.1 × 10^1 gramsC. 36 × 10^5 gramsD. 11 × 10^1 grams

Answers

Answer:

Answer is A.3.6*10^(5)

Step-by-step explanation:

Mass of Sodium Chloride in one 50kg person = 2*10^(2) grams

Mass of Sodium Chloride in 1.8*10^(3) 50kg people = 2*10^(2) * 1.8*10^(3)

=(1.8*10^(3))*(2*10^(2))

=3.6*10^(5)

So the Answer is A.

A bakery bakes 184 loaves of bread in 4 hours. How many loaves does the bakery bake in 1 hour?

Answers

184\ loaves\ of\ bread\ baked\ in\ 4\ hours\n\nx\ loaves\ of\ bread\ baked\ in\ 1\ hour\n\nProportion:\n184-4\nx-1\n\nCross\ multiplication:\n184+1=4*x\n184=4x\ \ \ | divide\ by\ 4\nx=46\n\nIn\ 1\ hour\ 46\ bread \ are\ baked.
All you have to do is 184 divided by 4 and it equals 46

Solve : 4+3x =(3x-7)+9.

Answers

X=3
Hope this helped

Answer:

D.) x = 3

Step-by-step explanation:

4 + 3x = 2(3x - 7) + 9

4 + 3x = 6x - 14 + 9

3x - 6x = 9 - 14 - 4

-3x = -9

x = -(-9)/3

x = 9/3

x =3

Chet's father is five times as old as Chet. In six years, his father only be three times as old. How old is Chet now?

Answers

12 bc if u take a random number like 6 times it by 5 you get thirty so his dad is 30 years old and chet is 6 then add six years and chet is 12 and his dad is 36 and 12 goes into 36 3 times. I hope this helped. :-)

Expand the expression and combine like terms:
\qquad{1+4(6p-9)}1+4(6p−9)

Answers

1+4(6p-9)

1 + 4*6p - 4*9

1 + 24p - 36

24p + 1 - 36

24p - 351+4(6p-9)

1 + 4*6p - 4*9

1 + 24p - 36

24p + 1 - 36

24p - 35
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