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11Alexandr11 [23.1K]
3 years ago
6

At 10 A.M the outside temperature was -5 F. By noon, the temperature was -17 F. Ricardo said that it was getting warmer outside.

What is the difference between the temperature at 10 am and the temperature by noon? Is Ricardo correct? (The F means Fahrenheit)
Mathematics
2 answers:
Natasha_Volkova [10]3 years ago
8 0
Ricardo is not correct because the temperature is actually getting colder (idk if I need to explain it more). The difference is -12 F
Ganezh [65]3 years ago
4 0
Ricardo is incorrect. -17 is less than -5; and therefore the temperature decreased between 10 am and noon.

To find the difference between them, we set up the following:

-17 - (-5)

-17 + 5

-12

So we know that the temperature decreased 12 units between 10am and noon.

I hope this Helps!
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Mrs. Chip bought 2 sheets and a blanket and paid $41. Mrs. Dale bought a sheet and 4 blankets and paid $80.
Katyanochek1 [597]

Answer:

  • Sheet = $12
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Step-by-step explanation:

<u>Let the cost of a sheet be s and cost of a blanket be b</u>

  • 2s + b = 41
  • s + 4b = 80

<u>From the first equation we get:</u>

  • b = 41 - 2s

<u>Substitute in the second equation</u>

  • s + 4*(41 - 2s) = 80
  • s + 164 - 8s =  80
  • 7s = 84
  • s = 12

<u>Then</u>

  • b = 41- 2*12 = 17
6 0
3 years ago
Jules has 1200 and is spending 40 per week. kelsey has 400 and is saving 50 a week. in how many weeks, will jules and kelsey hav
expeople1 [14]
After x weeks:
Jules will have: 1,200 + 40 x.
Kelsey will have: 400 + 50 x.
If we want to know in how many weeks will they have the same amount of money, we will make an equation:
400 + 50 x = 1,200 + 40 x
50 x - 40 x = 1,200 - 400
10 x = 800
x = 800 : 10
x = 80
Answer: In 80 weeks they will have the same amount of money.
4 0
3 years ago
Which is the best definition of the radius of a circle​
lapo4ka [179]

Answer:

The radius is half of the diameter of the circle and it is measured from the center of the circle to the circumference of the circle.

Step-by-step explanation:

7 0
3 years ago
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Laura created a website to create T-shirts. In the first month she put up her website she had only a single T-shirt order. Each
kiruha [24]

Laura received 144 orders over the first year

<em><u>Solution:</u></em>

<em><u>Given function is:</u></em>

f(n) = 2n - 1

Where, "n" is the month

In the first month she put up her website she had only a single T-shirt order

f(1) = 2(1) - 1 = 2 - 1

f(1) = 1

There are 12 months in a year

For the second month, and third month and so on, substitute n = 2, 3 and so on

f(2) = 2(2) - 1 = 4 - 1 = 3

f(3) = 2(3) - 1 = 6 - 1 = 5

f(4) = 2(4) - 1 = 8 - 1 = 7

f(5) = 2(5) - 1 = 10 - 1 = 9

f(6) = 2(6) - 1 = 12 - 1 = 11

f(7) = 2(7) - 1 = 14 - 1 = 13

f(8) = 2(8) - 1 = 16 - 1 = 15

f(9) = 2(9) - 1 = 18 - 1 = 17

f(10) = 2(10) - 1 = 20 - 1 = 19

f(11) = 2(11) - 1 = 22 - 1 = 21

f(12) = 2(12) - 1 = 24 - 1 = 23

<em><u>Thus total orders received over first year:</u></em>

Total orders = 1 + 3 + 5 + 7 + 9 + 11 + 13 + 15 + 17 + 19 + 21 + 23

Total orders = 144

Thus she received 144 orders over the first year

8 0
3 years ago
(Need help) pls read all of it?
Tems11 [23]

Answer:

total amount of tickets for the rides: 21+32+31=84

total amount of tickets she has: 23-6= 17

total amount of tickets she needs left: 84-17=67

answer: 67

Hope this helped :) have a great rest of your day or evening!!!

6 0
3 years ago
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