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Travka [436]
3 years ago
7

the sum of the digits of a two digit number is 7 when the digits are reversed, the number is 9 less than the original number. fi

nd the numbers
Mathematics
1 answer:
Svetllana [295]3 years ago
6 0

The two digit number is 43.

If flipped around, the number is 34, which is 9 less than 43. 4 + 3 = 7.


Hope this helps!

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1. Expresa cada función cuadrática f en la forma f(x)-yo = p(x – xo) x ϵ R, donde xo , yo , p ϵ R son elegidos apropiadamente. I
crimeas [40]

Answer:

Step-by-step explanation:

1. Express each quadratic function f in the form f (x) -yo = p (x - xo) x ϵ R, where xo, i, p ϵ R are appropriately chosen. Indicate the coordinates

of the vertex of the parabola, the minimum or maximum of the function f, especially R. Draw the graph of f.

a) f (x) = 2x2 + 3x -5, ϵ R,

b) f (x) = -3x2 + 7x +9, ϵ R,

c) f (x) = - x +1, ϵ R,

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7 0
3 years ago
The price for the items ordered at lunch was $23.45. How much would the price be after tax and tip if the tax rate is 8% and you
kiruha [24]
Cost of items = $23.45

Tax = 8% of $23.45 = 0.08*23.45 = $1.88
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Total cost = 23.45 + 1.88 + 4.69 = 30.02

Answer: $30.02

8 0
3 years ago
Please help WILL MARK BRAIN LEST 5 STAR RATING THANKS ON YOUR PAGE 
kotegsom [21]

Part A

So the coefficient would be the number that is with a variable. The coefficient of 7.50h is 7.50. The variable is h, variables can be a letter or symbol that stands for something in a equation. For this question, h stands for the number of hours Corinne works. The constant is the number that is alone in the equation. That doesn't have a variable with it. In this equation the constant would be the number 40.


Part B

To solve this I will plug in 25 into "h" in and 300 for "s" in the equation 7.50h + 0.20s + 40 and then solve.


1. 25 * 7.50 = $187.5.

2. 0.20 * 300 = $60

3. Add it all together: $187.50 + $60 = $247.50 + $40 = $287.50


Part C

If Corrine gets a raise and earns $9 an hour the coefficient would change. It would be 9h instead of 7.50h.


5 0
3 years ago
Read 2 more answers
Ratio equivalent to 12:21 with lower terms
slamgirl [31]
12:21 Each / by 3= 4:7
8 0
3 years ago
Read 2 more answers
Which of the follwing equations has a quotient with a remainder?
Reptile [31]

Answer: Choice 2) A, B, C

====================================

Explanation:

Use a calculator to find that,

  • 946/32 = 29.5625
  • 1157/11 = 105.1818 approximately
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  • 37392/82 = 456

The first three results have a decimal portion as the answer. So there is a remainder here. The remainder is the leftover bit that couldn't make another full value. Only choice D results in a whole number that isn't a decimal value, so this does not have a remainder.

As a smaller example, let's say we had 20 cookies and 3 people. If we want to divide the cookies evenly, then each person gets 20/3 = 6 full cookies and there would be 2 cookies left over (6*3 = 18 are eaten so 20-18 = 2 is left over). Notice that 20/3 = 6.67 approximately. The non-whole number decimal value indicates we have a remainder. If we had 21 cookies, then each person gets 21/3 = 7 full cookies with nothing left over, so there's no remainder here.

4 0
3 years ago
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