What two numbers equal 28?

Answers

Answer 1

Answer: it can be a variety of numbers!
10+18 is 28

Answer 2

Answer: 20+8
19+9
2+26
it's many more ways you can do it

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At 5:00 p.m., the outside temperature was –9.2°C. By 10:00 p.m., the outside temperature had dropped 4.5°C.What was the outside temperature at 10:00 p.m.?

Answers

I think it would be -13.7 Seeing how it is already a negative and dropping another 4.5 is a negative, so we just add the 2 numbers and it's the answer just keep your sign

I have no idea how to do this stuff.

Answers

Answer: $y=2x^(2)-5x+7$

Step-by-step explanation:

The quadratic equation in its standard form is:

$y=ax^(2)+bx+c$

Now, we are given 5 points of the parabola (if you graph a quadratic equation you will have a parabola), however we only need to choose three points to find the coeficients $a$ , $b$ and $c$ in the quadratic equation.

So, let's choose the first three points:

(-1,14):

$14=a(-1)^(2)+b(-1)+c$

$14=a-b+c$ (1)

(0,7):

$7=a(0)^(2)+b(0)+c$

$7=c$ (2)

(1,4):

$y=2x^(2)-5x+7$

$4=a(1)^(2)+b(1)+c$

$4=a+b+c$ (3)

Substituting (2) in (1) and (3):

$14=a-b+7$ (4)

$4=a+b+7$ (5)

At this point we have a system with two equations.

Adding (4) to (5):

$18=2a+14$ (6)

Isolating $a$ :

$a=2$ (7)

Substituitng (7) in (3):

$4=2+b+7$ (8)

Isolating $b$ :

$b=-5$ (9)

Now we have the three coeficients and we can write the quadratic equation:

$y=2x^(2)-5x+7$

Sams bill at a restaurant is $12, and he leaves a 20% tip. What is the total bill including the tip

Answers

The tip is $2.40 and the bill is$14.40

Sherry bought 6 apples at 43¢ per apple. She then bought 4 oranges at 51¢ per orange. How much was her grocery bill?

Answers

Answer:

$4.62

Step-by-step explanation:

6x.43=2.58

4x.51=2.04

2.58+2.04=4.62

four dollars and 62 cents ($4.62)

Which equation and solution can be used to solve this problem? Twenty-two less than a number is twenty-four. q + 22 = 24: Subtract 22 from both sides. The answer is 2. 24 + q = 22: Subtract 22 from both sides. The answer is 2. q minus 24 = 22: Add 24 to both sides. The answer is 46. q minus 22 = 24: Add 22 to both sides. The answer is 46.

Answers

Answer:

q-22=24. Hope this helps.

Step-by-step explanation:

22 less than a number, meaning 22 is subtracted FROM an unknown variable. Going by this you would add 22 on both sides, giving you an answer of 46.

Answer

The answer is 46. q minus 22 = 24: Add 22 to both sides.

Step-by-step explanation:

''Twenty-two less than a number is twenty-four''

The equation q -22 = 24 because a number [q] less than [22] is [24]

Therefore, the answer is 46.

A function of the form f(x) = mx + b, where m and b are real numbers, is called a _____
.

Answers

A function of the form f(x) = mx + b, where m and b are real numbers, is called a linear function

Step-by-step explanation:

There are different types of functions.

The functions in the form of f(x) = mx+b

This type of function, when graphed is in the form of a line where m is the slope of the line. Both the independent variable and the output of the function have a linear relationship

Hence,

We can conclude that

A function of the form f(x) = mx + b, where m and b are real numbers, is called a linear function

Keywords: Functions, linear relationship

Learn more about functions at:

#LearnwithBrainly

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