3 years ago

Our of 1000 new born

Mathematics

1 answer:

kozerog [31]3 years ago

3 0

Look a view at this picture

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Need answer please and this a part 1 to this math hw spam

vlada-n [284]

Answer: -2.85

Step-by-step explanation:

To convert 22/20 into a decimal, we must multiply it by 5 to get a denominator of 100.

5(22/20)= 110/100= 1.10

So now lets solve the equation.

-1.75-1.10 = -2.85

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3 years ago

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The area of a rectangle is 30 square feet. The perimeter is 22 inches. The length is 1 inche longer than the width. What are the

makvit [3.9K]

5 inches long 6 inches wide

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3 years ago

Which answer correctly estimates the product of 3.09 × 304.87? A. about 9.0 B. about 9.9 C. about 90 D. about 900

KiRa [710]

The answer is D) About 900

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Seventy concert tickets are sold for 550$.Each adult ticket cost 9$ and each children’s ticket cost 5$.Find the number of adult

Afina-wow [57]

50 adult tickets and 20 children tickets were sold for the concert.

Step-by-step explanation:

Given,

Number of concert tickets sold = 70

Revenue generated = $550

Cost of each adult ticket = $9

Cost of each child ticket = $5

Let,

x be the number of adult tickets sold

y be the number of child tickets sold

According to given statement;

x+y=70 Eqn 1

9x+5y=550 Eqn 2

Multiplying Eqn 1 by 5

$5(x+y=70)\\5x+5y=350\ \ \ Eqn\ 3$

Subtracting Eqn 3 from Eqn 2

$(9x+5y)-(5x+5y)=550-350\\9x+5y-5x-5y=200\\4x=200$

Dividing both sides by 4

$\frac{4x}{4}=\frac{200}{4}\\x=50$

Putting x=50 in Eqn 1

$50+y=70\\y=70-50\\y=20$

50 adult tickets and 20 children tickets were sold for the concert.

Keywords: linear equation, elimination method

Learn more about linear equations at:

#LearnwithBrainly

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3 years ago

I need help with this if you’re right I will mark you as brainlest

liraira [26]

Answer:

try 1.8 or .18

Step-by-step explanation:

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