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spin [16.1K]
3 years ago
6

8. An item is on sale for 50% off the regular price of $3.18. A customer buys one and gives the cashier $5.00. The cashier gives

the customer
Mathematics
1 answer:
Mashcka [7]3 years ago
8 0
3.18*.50=1.59
5.00-1.59= 3.41

The cashier will hand the customer $3.41 because the cost of the item after taking 50% off is $1.59 and the customer gave the cashier $5.00 the cashier must give the customer $3.41 in change.
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When finding a percent, what do you do? For example "what is 24% out of 45"
svetoff [14.1K]
We have an equation: ?/45= 24/100

Cross multiply:
100*? = 24*45
⇒ ?= 24*45/100= 10.8

24% out of 45 is 10.8~
8 0
4 years ago
In triangle XYZ, W is between Y and Z. The coordinates are X (2, 3), Y (5, 0), Z (0, 0), and W (2, 0). What is XW?
Andru [333]
C I think not sure on the same question
8 0
4 years ago
The two points (2,4) and (9,4) are the endpoints of the diameter of a circle. What is the equation of this circle in standard fo
denis23 [38]
The midpoint of the diameter endpoints is the center of the circle...

((2+9)/2, (4+4)/2)

(5.5, 4) is the center of the circle...

The distance between the two endpoints is the diameter of the circle...

d^2=(4-4)^2+(9-2)^2

d^2=0+49

d^2=49

d=7

So the radius is d/2 which is 3.5

Now the equation of a circle is:

(x-h)^2+(y-k)^2=r^2  where (h,k) is the coordinates of the center and r is the radius.

Earlier we found (h,k) to be (5.5, 4) and r=3.5 so our equation is:

(x-5.5)^2+(y-4)^2=3.5^2

(x-5.5)^2+(y-4)^2=12.25
4 0
3 years ago
HELP PLS 25 POINTS!!!!
Anika [276]

Okay, let me first explain what the equation<em> y = 8.77x + 686 </em>means

<em>y </em><em>is the hikers elevation </em>

Look at the graph and see what the y and x axis's are labeled as.

<em>x </em><em>is time. </em>

8.77 is just the slop of the trend line.

<em>686 </em><em>is just the elevation the hiker starts at</em>, or in technical terms, the y intercept. Y intercept is just where the lines touches the y axis.

The question asks what will be the <u>hiker's elevation at 145 minutes. </u>

To solve, just simply <u>plug in 145 as X </u>in the equation above. Remember x is time.

It will look like this :

y = 8.77 (145) + 686

Then solve.

y = 1271.65 + 686

y = 1957.65

Reminder: They want the nearest whole number!

Round 1957.65 feet to 1958 feet


Hope I helped! Message me if you have questions  

5 0
4 years ago
Help me please..!!!!
wariber [46]
I think it is D but i am not too sure
3 0
3 years ago
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