Joanna went school supply shopping. She spent $26.75 on notebooks and pencils. Notebooks cost $1.85 each and pencils cost $1.38 each. She bought a total of 17 notebooks and pencils. How many of each did she buy?A. 12 notebooks; 5 pencils
B. 7 notebooks; 10 pencils
C. 10 notebooks; 7 pencils
D. 5 notebooks; 12 pencils

Answers

Answer 1

Answer: C. 10 notebooks; 7 pencils.

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If f(x) = │(x² – 50)│, what is the value of f(-5) ?

Answers

$f(x)=|(x^2-50)|\n\nf(-5)=|(-5)^2-50|=|25-50|=|-25|=25\n\n\n|a|= \left\{\begin{array}{ccc}a&for&a\geq0\n-a&for&a < 0\end{array}\right\n\n|-3|=3;\ |5|=5;\ |0|=0;\ |-12|=12$

Answer:

Step-by-step explanation:

f(x) = [ (x^2 - 50 ) } ,

f( - 5) = [ (-5)^2 - 50) ]

f( - 5) = [ 25 - 50]

f( - 5) = [ -25 ]

f(-5) = 25

The sum of two odd numbers is 198. Both of the numbers are multiples of 3. One of the numbers is 5 times the other. Which equation could you use to find the two numbers?

Answers

Answer:

The equation used to find the two numbers is:

x+5x=198

and numbers are:

33 and 165

Step-by-step explanation:

The sum of two odd numbers is 198.

One of the numbers is 5 times the other.

Let one number be x

other number=5x

⇒ x+5x=198

⇒ 6x=198

Dividing both sides by 6,we get

x=33

Other number=5x=5×33=165

The equation used to find the two numbers is:

x+5x=198

and numbers are:

33 and 165

You could use m= the lesser number and n as the greater number. Since one is 5 times the other you will start with m+5m=198. Then you will combine like terms so it will become 6m=198. Then you will solve it as a regular equation. m=33 and n=165.

If 3a - 2 = 10, what is the value of 8a + 1?

Answers

Answer:

8a+1=33

Step-by-step explanation:

you can solve 3a-2=10 by simplifying to 3a=12, so a=4. Then you replace the a in 8a+1 with 4 to get 32+1, which is 33

Answer:

Step-by-step explanation:

3a-2= 10

3a=12

a=4

in this equation a=4 so you substitute that value into the other equation

8(4) +1=33

What's the answer to this?

Answers

I'm pretty sure the answer is 40

Pls help I am on a lesson plsss give all my points

Answers

Answer:

7 squared is 49 4 squared is 16.. So it's 49 Pi minus 16 pi. And that's going to be 33 pi.

So the answer is 33 pi.

The ordered pairs below represent a linear relation between x and y.(-3,1), (-2,3), (-1,5), (0,7), (1,9), (2,11)

Which of the following is a correct statement about this relation?

A. The slope of the line represented by this table is -2 and the y-intercept is -4.
B. The slope of the line represented by this table is 2 and the y-intercept is 7.
C. The slope of the line represented by this table is 2 and the y-intercept is -4.
D. The slope of the line represented by this table is -2 and the y-intercept is 7.