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Sliva [168]
3 years ago
8

Pamela babysits for a family down the street. She earns $25 each time she visits. Write an expression that could be used to find

the amount Pamela earns working b times for the family.
Mathematics
1 answer:
fgiga [73]3 years ago
5 0
I believe it is 25 b or 25 times b
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Martha has $20 to spend on a t-shirt. She has a coupon for 20% off. The t-shirt regularly sells for $22.50 plus 10% sales tax.
rodikova [14]

Answer:

1 and 3

Step-by-step explanation:

Step 1 is clearly elaborated.  Tax is impliedd on the discounted price.

In step 3, the steps of deductions are skipped.

Like 1 + 10% = 110% and 1 - 20% = 80%

Step 2 is simply wrong. Because the percentages are implied on different values.

5 0
3 years ago
PLEASE HELP!! 20 POINTS PLUS BRAINLIEST IF YOURE RIGHT!!
zaharov [31]
Firstly, we have to find the mean. The mean is simply the average of the numbers, which we find by adding each number in the sequence and then dividing that result by the total amount of numbers.

<em>13.3 + 14.3 + 15.3 + 16.3 + 17.3 = 76.5</em>

<em>76.5 / 5 = 15.3

</em>Okay, so our average is 15.3.
<em>
Now, </em>we have to subtract the mean from each number and then square the result.

<em>(13.3 - 15.3)^2 = 4</em>
<em>(14.3 - 15.3)^2 = 1</em>
<em>(15.3 - 15.3)^2 = 0</em>
<em>(16.3 - 15.3)^2 = 1</em>
<em>(17.3 - 15.3)^2 = 4

</em>Now we have to find the mean of those numbers!
<em>
4 + 1 + 0 + 1 + 4 = 10

10 / 2 = 2

</em>Finally, we take the square root of that number and we have our standard deviation. =)<em>
</em>
8 0
3 years ago
When Shondra makes an online purchase, a 15% discount is applied to the retail price and then a 6.25% tax is added to this disco
Kipish [7]

Let x be the retail price

A 15% discount means a discounted price of

x - 0.15 x = 0.85 x

6.25% applied to that means paying

1.0625 (0.85 x)

Answer: C

7 0
3 years ago
PLEASE HELP!!
Zinaida [17]

Answer:

Verify ∠A ≅ ∠D and ∠B ≅ ∠E by translation

Step-by-step explanation:

just took exam

3 0
2 years ago
Read 2 more answers
Hello sorry need help again, please just answer the pictures below.
olya-2409 [2.1K]
X/1.3=16/5.2 answer is 4
5 0
3 years ago
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