MATHEMATICS MIDDLE SCHOOL

How would you add parentheses and brackets to make this sentence true: 45/2x4.7-4.4x6=54

Answers

Answer 1
Answer: 45/[(2x4.7)-4.4]x6=54
Answer 2
Answer:

Answer:

Step-by-step explanation:

How would you add parentheses and brackets to make this sentence true: 45/2x4.7-4.4x6=54

How would you add parentheses and brackets to make this sentence 45/2x4.7-4.4x6=54

Answer

45/[(2x4.7)-4.4]x6=54

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Liam had $250. Then, he and his classmates bought a present for their teacher, evenly splitting the $p cost among the 24 of them. How much money does Liam have left?

Answers

Answer:

250-p/24

Step-by-step explanation:

the amount of money Liam starts with= 250

Amount Liam on the present= p/24

In 1950, there were 40.3 million cars registered in the United States. In 1990, there were 133.7 million cars registered in the United States. What was the percent increase of registered cars from 1950 to 1990?

Answers

(133.7)/(40.3)*100\%\approx331,76\%

Final answer:

The number of registered cars in the US increased by about 231.76% from 1950 to 1990, calculated by finding the difference between the two given values, then dividing this by the initial value and multiplying by 100 to get the answer as a percentage.

Explanation:

The question is asking for a percent increase in the number of registered cars in the United States from 1950 to 1990. To calculate a percent increase, you first need to determine the amount of the increase, then divide this by the original amount, and multiply by 100 to get the answer in percent form.

The number of registered cars in the United States increased from 40.3 million in 1950 to 133.7 million in 1990. The amount of increase is therefore 133.7 (1990 number) - 40.3 (1950 number) = 93.4 million.

Next, we find the percent increase by dividing the increase by the original (1950) amount and multiplying by 100: (93.4 / 40.3) x 100 = Approximately 231.76%. So, there was roughly a 231.76% increase in the number of registered cars in the United States from 1950 to 1990.

Learn more about Percentage Increase here:

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How many fractions are equivalent to 4/5 Explain

Answers

(4)/(5)= (4\cdot2)/(5\cdot2) = (8)/(10) \n \n (4)/(5)= (4\cdot7)/(5\cdot7) = (28)/(35) \n \n (4)/(5)= (4\cdot10)/(5\cdot10) = (40)/(50) \n \n (4)/(5)= (4\cdot25)/(5\cdot25) = (100)/(125) \n \n (4)/(5)= (4\cdot400)/(5\cdot400) = (1600)/(2000) \n \n (4)/(5)= (4\cdot500)/(5\cdot500) = (2000)/(2500)\ ...

Answer:

An infinite amount

Step-by-step explanation:

fractions can be multiplied/divided by all numbers and still be equivalent as long as you multiply/divide the numerator AND the denominator by the same number.

Which expression is equivalent to (82)–4?

Answers

8 to the second power is closer to  82-4

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

Answers

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

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

What is 54÷6+2×(8-3×4)? show work

Answers

54 ÷ 6 + 2 × (8-3 × 4); 54 ÷ 6 + 2 × (8 - 12); 54 ÷ 6 + 2 × (-4); 9 + 2 × (-4); 9 + (-8) ; 1 Remember PEMDAS
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