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svet-max [94.6K]
3 years ago
7

PLEASE HELP

Mathematics
1 answer:
Dominik [7]3 years ago
8 0
A. Let the Initial Interest rate = x
It is given that each month Interest rate decreases by 1/4 point. Let total change of rate over the last six month= y
y = 6 x -x/4
y = -1.5x

B. Total Change
= (-1.5x-x)/(6-1)
= -2.5x/5
= -0.5x
= -5x/10
= -x/2
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A caterer will provide the meal for the football banquet. The caterer charges a base fee of $400 plus $6 per plate.
Anuta_ua [19.1K]

Answer: y = 6x + 400

slope = the increase in cost per extra plate

y-intercept = total cost

5 0
3 years ago
Find the surface area of a cylinder with a height of 7 m and a base radius of 5 m.
nekit [7.7K]

Answer: 376.8m

Step-by-step explanation:

Total surface area of a cylinder is calculated by 2πrh+2πr2, where π is a constant, given as 3.14, h is the height= 7m and r is radius= 5m

rh = 5m x 7m = 35m while

r^2 = 5m x 5m = 25m

Slot the values into the formula:

V = 2 x 3.14 ( 35) + 2 x 3.14 (25)

V= (6.28 x 35) + (6.28 x 25)

= 219.8 + 157

V= 376.8m

I hope this helps.

5 0
3 years ago
Read 2 more answers
Evaluate the expression and enter your answer in the box below.<br> 7-(4)
White raven [17]
The answer is 3 I hope this helps. please mark me brainliest :)
8 0
3 years ago
What is the slope of 6x + 3y =15?
frozen [14]

Answer:

<h2>The answer is - 2</h2>

Step-by-step explanation:

Equation of a line is y = mx + c

where

m is the slope

c is the y intercept

To find the slope we must first write the equation in the general equation above

That's

6x + 3y = 15

<u>Make y the subject</u>

Send 6x to the other side of the equation

3y = - 6x + 15

<u>Divide both sides by 3</u>

\frac{3y}{3}  =  -  \frac{6}{3} x +  \frac{15}{3}

We have

y = - 2x + 5

Comparing with the general equation above

Slope / m = - 2

Hope this helps you

5 0
3 years ago
Read 2 more answers
In combining like terms, what do these equations equal?
tester [92]

Answer:

Look below. The answers are bolded!

Step-by-step explanation:

1.   <em>10x + 23</em>

5+6(2x+3)-2x

Distribute first!

5 + 12x + 18 -2x.

Now you can combine like terms.

23 + 10x



2.   <em>18x + 6</em>

3(4x+8) + 3(2x-6)

Distribute first!

12x + 24 + 6x - 18

Now you can combine like terms.

18x + 6



3. <em>-2x + 8</em>

(32-8x)

____ ___

     4

Divide 32 and -8x by 4.


32/4 = 8

-8x/4 = -2x


-2x + 8



4. <em>4x + 3</em>

24x+18

______

    6


Divide 24x and 18 by 6

24x/6 = 4x

18/6 = 3


4x + 3

 




7 0
3 years ago
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