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AnnZ [28]
3 years ago
15

Professer Dumbledore bought a new sorting hat. The total cost was $59.92,including the 7% he paid in tax. What was the subtotal?

Mathematics
1 answer:
svetlana [45]3 years ago
3 0

Answer:

$55.73

Step-by-step explanation:

First you would multiply $59.92 and 0.07 together and get 4.1944. Round this and get 4.19. Then you would subtract this from the total price to get 55.73.

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Round 763.53 to the nearest hundred
FinnZ [79.3K]

Answer:763.5

Step-by-step explanation:

the 3 will make it stay the same

8 0
3 years ago
Read 2 more answers
What is the equation for this angle?
mina [271]

Answer:

Step-by-step explanation:

115+4n-5=180 degree (being straight line)

110-4n=180

4n=180-110

n=70/4

n=17.5

therefore the value of n is 17.5 degree

substitute the value of n

4n-5

4*17.5-5

70-5

65

3 0
2 years ago
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The quotient of a number y and -3.6 is less than 6.5 <br><br> (written as an inequality)
elena-14-01-66 [18.8K]

Answer:

\frac{y}{-3.6} < 6.5

7 0
2 years ago
Please help meeeeee with this
aleksandrvk [35]
Alright, let's do all of these (though this is a bit long).
1.
The constant is 1.8. All other values are coefficients to variables, which as the name implies will change.
2.
1 hour is 60 minutes, 1 minute is 60 seconds.
So, 4.2 *60 *60 = 15120 seconds.
3.
<span>−5x−4(x−6)=−3-5x-4(x-6)=-3
Let's move all x to one side, and all other numbers to another.
-5x-4(x-6)=-3-5x-4(x-6)=-3
x can be any value you want, if you actually solve this you'll only end up with -3 = -3, which is correct, of course.
Let me show you:
</span><span>−5x−4(x−6)=−3-5x-4(x-6)=-3
+5x +4(x-6)        +5x +4(x-6)
-3 = -3
The value of x is irrelevant, then. X can be any real number.
4.
I'm going to assume it was an error in printing with this? If not please correct me.
m=a+2b(or b2)
subtract 2b from each
a=m-2b
(This question seems kind of odd. We should probably address this in the comments.)
5.
</span><span>5(x−2)<−3x+6
Move all x to one side, numbers to other.
5x-10<-3x+6
+3x     +3x
    +10      +10
8x<16
/8
<span>x < 2
</span>6.
y-3=3(x-5)
alright, to find zeros set one variable to zero and solve
x first
-3=3x-15
+15    +15
3x=12
/3
x=4
x-int is (4,0)
now y
</span>y-3=3(0-5)
y-3=-15
+3     +3
y=-12
so y-int is (0,-12)
i've got to sleep now so i'll do the rest tomorrow. Sorry for the incomplete answer.

8 0
3 years ago
The table below shows school T-shirt sales for the past ten weeks. The school wants to make one more order for the next 30 weeks
Marta_Voda [28]

Answer:

Mean =13, Median=9, Mode =7, Range=43

Step-by-step explanation:

\left\begin{array}{c|cccccccccccc}Month&Sept &Sept& Sep& Oct& Oct &Oct &Oct &Oct &Nov& Nov\\Day&10 &17& 24& 1 &8& 15& 22& 29& 5 &12\\Sales&7 &50 &8& 9& 10& 12 &7& 7 &9& 11\end{array}\right

(1)Mean

Mean =\frac{\text{Sum of all the Sales}}{\text{Number of Sales}}

=\frac{7+50+8+9+10+12+7+7+9+11}{10}\\=\frac{130}{10} \\\bar x =13\\Mean=13

<u>Median</u>

First we arrange the sales in ascending order

7,7,7,8,9,9,10,11,12,50

Since there are two terms in the middle, the Median =(9+9)/2 =9

<u>Mode</u>

The mode is the number of sales with the highest frequency.

Mode =7

<u>Range</u>

Range =Highest Value - Lowest value  =50-7=43

(b)Mean =13, Median=9, Mode =7, Range=43

The Median seems to best represent the ten numbers. this is as a result of the fact that the value of the Mean and range were affected by the outlier number(50).

The School should therefore order T-Shirts in the range of the Median.

3 0
3 years ago
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