the sum of 2 numbers is 30. the sum of the greater number and three times the lesser number is 54. Find the numbers

Answers

Answer 1

Answer: The numbers are 18 and 12.

18 + 12 = 30
18 + 3(12) = 54

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Katye received 15 gifts and a total of $100 in cash for her birthday. She buys one book that costs $23,and she wants to donate $10 to each of several local charities. How much money will Katye have left over if she donates to as many chanties as possible? Check only the clues that are important to the problem. Katye received 15 gifts. Katye received $100. Katye buys a $23 book Katye wants to donate $10 to each charity Katye wants to donate to as many charities as possible.

Jane has 6 more than half the number of pairs of shoes that Mercedes has. Write and expression for this.

Answers

Jane = 1/2 Mercedes + 6
j = 1/2m + 6

What is the better estimate for the height of a desk 1 meter or 1 kilometer?

Answers

Just 1 meter..........

1 meter as that is below the average height of a person, 1 km is equivalent to 1000m which would be awfully high

Let f(x) =x squared +3x-4 and g(x) =x+5. Find f(x) times g(x).

Answers

Answer:

x^3 + 8x^2 + 11x - 30

Step-by-step explanation:

f(x) times g(x) = (x^2 +3x-4)(x+5)

= x^3 + 5x^2 + 3x^2 + 15x - 4x - 20

= x^3 + 8x^2 + 11x - 30

What number of students describes the third quartile?
20, 18, 21, 18, 22, 24, 18, 23, 23, 24,

Answers

Answer:

Step-by-step explanation:

Arrange the numbers in order from least to greatest;

18, 18, 18, 20, 21, 22, 23, 23, 24, 24

Find the Median = (21+22)/2= 21.5

Find the median (Q1) between 21.5 and 18 = 18

Find the median (Q2) between 21.5 and 24 = 23

Is 0.09 greater than 0.14

Answers

No 0.09 is less than 0.14

Decimal placement is key! 0.09 is in the hundreths while 0.14 is in the tenths making it closer to 1 and also greater than 0.09

no, it is not. 0.09 is one hundredth, so it would need 91 more hundredths to make a whole, but .14 has 1 tenth and 4 hundredth, so it has 14 hundredths. you would only need 86 more hundredths to make a whole ;)

Please help, I have no idea

Answers

Answer:

I THINK all but C apply for the second one. Just suggesting, but I hope it helps.

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