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melomori [17]
3 years ago
15

Paula bought a ski jacket on sale for $5 less than half its original price. She paid $87 for the jacket. What was the original p

rice?
Mathematics
2 answers:
crimeas [40]3 years ago
6 0

Answer:

184

Step-by-step explanation:

charle [14.2K]3 years ago
3 0

Answer:

$184

Step-by-step explanation:

87 is 5 less than 1/2 of the price without a sale. in that case 92 would be half the cost. To find the full value you would multiply 92 by two to get 184

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A recipe takes 90 minutes to make 25% of the time he spent preparing the ingredients how many minutes are spent preparing
gizmo_the_mogwai [7]

25% * 90 minutes is 22.5 22.5 minutes

5 0
3 years ago
Find the perimeter and area of each figure 70. A square with length 4.5 inches.
il63 [147K]

Area = 4.5 x 4.5 = 20.25 in²

Perimeter = 4 x 4.5 = 18 in

3 0
3 years ago
What is the value of h in the figure below?
yaroslaw [1]

Answer:

12

Step-by-step explanation:

ΔBAD is similar to ΔCBD.  So we can write a proportion:

BD / CD = AD / BD

h / 16 = 9 / h

h² = 144

h = 12

5 0
3 years ago
How to calculate standard deviation given mean and sample size?
ad-work [718]
In addition to mean and sample size you will need the individual scores.

The formula for standard deviation is:

S^2 = E(X-M)^2/N-1

Here's an example: 
Data set: 4,4,3,1
Mean: 3
Sample size: 4

First, put the individual scores one after the other and subtract the mean from it.
4 - 3 = 1
4 - 3 = 1
3 - 3 = 0
1 - 3 = -2

Second, square the answers you got from step 1. 
1^2 = 1
1^2 = 1
0^2 = 0
-2^2 = 4
Third, plug the values from step 2 into the formula. 

S^2 = (1+1+0+4)/(4-1) = 6/3 = 2

Standard deviation = 2
3 0
3 years ago
12x+7<-11 or 5x-8>40
puteri [66]

Answer:

\large\boxed{x9\dfrac{3}{5}\to x\in\left(-\infty,\ -1\dfrac{1}{2}\right)\ \cup\ \left(9\dfrac{3}{5},\ \infty\right)}

Step-by-step explanation:

12x+7

5x-8>40\qquad\text{add 8 to both sides}\\\\5x-8+8>40+8\\\\5x>48\qquad\text{divide both sides by 5}\\\\\dfrac{5x}{5}>\dfrac{48}{5}\\\\x>\dfrac{48}{5}\\\\x>9\dfrac{3}{5}\\===========================

x9\dfrac{3}{5}

7 0
3 years ago
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