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1 year ago

Please help!!!!!!!!!!!!!

Mathematics

2 answers:

Sergio039 [100]1 year ago

6 0

Answer:

It's a

Step-by-step explanation:

first I did 15/100 = x/59.99.

Then I multiplied 59.99 and 15 to get 899.85

After that I divided it by 100 to get 8.9985

That is how much money you get off from the 15 percent. So you subtract 8.9985 by 59.99 to get 50.9915.

Now it wants 50% of 50.9915

The fractions are 50/100 and x/50.9915

Now I multiply 50 and 50.9915 to get 2549.575

Then I divide 2549.575 by 100 to get 25.49575

Then I subtract 50.9915 by 25.49575 to get 25.49575

That isn't a real math number for money. So you round to the nearest 10th. The 5 makes the 9 turn into a 10 making it 25.50.

The total cost is 25.50$

I hope this helps! - Karen

Neko [114]1 year ago

4 0

I think it might be C

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olchik [2.2K]

Answer:

x = 38

y = 25

Step-by-step explanation:

To find x, you do

(2x + 5) = (3x - 33)

Subtract 2x from both sides to isolate x on one side, you get:

5 = (x - 33)

Add 33 to both sides to separate the normal number from the x, you get:

38 = x

From there, you plug x into one of the equations

2(38) + 5

The answer's 81, meaning that angle is 81 degrees. Using supplementary angles, you can find that angle ACD = 99, which you can use to find angle BCE. You'll get this equation:

(4y - 1) = 99

Add one to both sides to get rid of it, you get:

4y = 100

Divide by four, to get the y all alone:

y = 25

I hope this helped!

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2 years ago

Read 2 more answers

What is an equation of the line that passes through the points (6, -3) and (-6, -5)?

SVETLANKA909090 [29]

Answer:

Step-by-step explanation:

The standard form of an equation for a straight line is y=mx+b, where m is the slope and b is the y-intercept (the value of y when x = 0).

We can calculate the slope from the two given points, (6,-3) and (-6,-5). Slope is Rise/Run, where Rise is the change in y and Run is the change in x.

From the two given points, starting at (-6,-5) and going to (6,-3):

Rise = (-3 - (-5)) = +2

Run = (6 - (-6)) = 12

Rise/Run (slope) = 2/12 or 1/6

The equation becomes y = (1/6)x + b

We can find b by enterieng either of the two given points and solving for b. I'll pick (6,-3):

y = (1/6)x + b

-3 = (1/6)*(6) + b

-3 = 1 + b [Now you can see why I chose (6,-3)]

b = -4

The equation is y = (1/6)x - 4

Check this with a DESMOS graph (attached).

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2 years ago

a triangles has side lengths of 7, 10 and 11 what is the perimeter of the triangle formed by joining the midpoints of these side

hodyreva [135]

A triangles has side lengths of 7, 10 and 11 what is the perimeter of the triangle formed by joining the midpoints of these sides?

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2 years ago

Jack works as a waiter and is keeping track of the tips he earns daily. about how much does jack have to earn in tips on sunday

OLga [1]

A mean is an arithmetic average of a set of observations. The amount that Jack has to earn in tips on Sunday if he wants to average $19 a day is $25.

A mean is an arithmetic average of a set of observations. it is given by the formula,

$\rm Mean=\dfrac{\text{Sum of all obervation}}{\text{Number of observation}}$

As it is given that Jack makes $12 on Monday, $14 on Tuesday, $18 on Wednesday, $16 on Thursday, $26 on Friday and $22 on Saturday. And we need to know how much he should earn on Sunday, so the average is $19. Therefore, we can write,

$\rm Mean=\dfrac{\text{Sum of all obervation}}{\text{Number of observation}}$

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