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3 years ago

-3x + 5 ¾ + 12x - 2.25 if you answer this it is worth 100 points

Mathematics

2 answers:

Greeley [361]3 years ago

7 0

Answer: 9 x + 7 /2

Step-by-step explanation:

vazorg [7]3 years ago

3 0

Answer:

8 + 9x

Step-by-step explanation:

This is an algebraic expression. Our job here is to simplify it by combining like terms: combine the x terms and then combine the constants:

-3x + 5 ¾ + 12x - 2.25, after combining the x terms, is

5 ¾ + 9x - 2.25

Next, combine the constants. It's easier to convert -2.25 to -2 1/4 and then

add this 2 1/4 to 5 3/4:

8 + 9x

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Number 2 is the problem i need help with

Reptile [31]

Answer:

2a) $180

2b) $1440

Step-by-step explanation:

2a) Basically Samuel works for 6 hours a day and earns 7.50 per hour, so you have to do 7.50 x 6 to see how much he earns per day (which in this case is $45). You then have to multiply $45 to 4 since he earns $45 per day and works 4 days per week (which is $180).

2b) After finding out how much he earns per week ($180 from the previous question), you then have to multiply $180 by 8 as $180 is the amount he earns per week and since he works for 8 weeks you have to multiply $180 by 8 (the answer is then $1440).

sorry if I'm not making sense, i tried :) good luck!

8 0

3 years ago

Read 2 more answers

Alexa has, 2 nickels, 1 quarter, and 3 pennies. How much money does she have?

UkoKoshka [18]

Answer:

38 cents

Step-by-step explanation:

quarter= 25

nickles= 5

pennies= 1

5+5+25+3= 38

6 0

4 years ago

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Do yall like my <br> avatar

Talja [164]

Answer:

Yeah

Step-by-step explanation:

lol

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3 years ago

Mr. K goes to the bank to withdraw some money. He requests that he only get $20 bills and $5 bills. Altogether, Mr. K got 30 bil

Vsevolod [243]

Answer:

10 $20 bills and 20 $5 bills

Step-by-step explanation:

5 0

3 years ago

Find the slope-intercept form of the equation of the line through the point (0, -4) and (1, 0).

Arisa [49]

Answer:

The Slope Intercept form of the equation through the point (0, -4) and

(1, 0) is y = 4 x - 1

Step-by-step explanation:

Here, the given points are A (0,-4) and B(1,0)

Now, slope of the equation with points (a,b) and (c,d) is given as

$m = \frac{d - b}{c -a}$

So, here the slope of the line AB is given as:

$m = \frac{0 - (-4)}{1-0} = \frac{4}{1} = 4$

⇒ m = 4

Now, by POINT SLOPE form:

The equation with slope m and point (x0 , y0) is represented as :

(y-y0) = m (x-x0)

⇒ The equation of AB is of the form with point (1,0) is

y - 0 = 4 (x -1)

or, y = 4 x - 1

Also, the SLOPE INTERCEPT form of an equation is of the form

y = m x + C ; m = slope and C = y -intercept

Hence, the slope intercept form of the equation through the point (0, -4) and (1, 0) is y = 4 x - 1

4 0

3 years ago