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Zina [86]
3 years ago
5

If a temperature in degrees Celsius is given as C, finding the sum of 1.8 times C and 32 gives the temperature in degrees Fahren

heit. The temperature in degrees Fahrenheit is given by , and 40°C is equal to °F.
Mathematics
2 answers:
BigorU [14]3 years ago
8 0
F(C)=1.8C+32   so when C=40°

F(40)=1.8(40)+32

F(40)=72+32

F(40)=104°


aalyn [17]3 years ago
4 0

Answer:

The temperature in degrees Fahrenheit is given by

F=1,8*(C)+32

40°C is equal to 104°F

Step-by-step explanation:

We can find the formula to find the temperature in degrees Fahrenheit with the problem information, the temperature in degrees Fahrenheit is given by:

F=1,8*(C)+32 (1)

F: Temperature in degrees Fahrenheit

C: Temperature in degrees Celsius

Now, with the equation (1) e can find how many degrees Fahrenheit are 40 degrees Celsius.

We need to replace 40 °C in the equation (1)

F=1,8*(40)+32\\F= 72+32

F= 104 degrees Fahrenheit

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while visiting a friend's home, i saw kittens and children playing in the backyard. counting heads, i got 11. counting feet, i g
trapecia [35]

Answer:

There are 5 cats and 6 children

Step-by-step explanation:

Let x = number of cats

Let y= number of children

Counting heads gives 11

X+Y = 11 .....eq1

Counting feet gives 32

Cats has 4legs,child has 2 legs

4X + 2Y=32 ....eq2

X = 11 - Y

Put in eq2

4(11-Y) + 2Y = 32

44 - 4Y + 2Y=32

12=2Y

Y=12/2=6

Y=6= Children

Put Y=6 in eq2

X + 6=11

X=11-6=5

X= 5 = cats

7 0
3 years ago
In an indoor soccer stadium, there are 20 seats in the first row and 31 seats in the second row. Every
Finger [1]
<h3>________________________________________________</h3>

Step-by-step Solution for Part-a:

<u>We know that:</u>

  • Row-1: 20 seats
  • Row-2: 20 + 11
  • Row-x: 20 + (11x - 11)

Since the number of rows in rows x is 20 + (11x - 11), the formula to calculate the number of seats in each row is 20 + (11x - 11).

<h3>________________________________________________</h3>

Step-by-step Solution for Part-b:

<u>We know that:</u>

  • y rows = 174 seats
  • Obtained rule from part-a: 20 + (11y - 11)

<u>Solution:</u>

  • 20 + (11y - 11) = 174 rows
  • => 20 + 11y - 11 = 174 rows
  • => 9 + 11y = 174 rows
  • => 11y = 174 - 9 rows
  • => 11y = 165
  • => y = 165/11
  • => y = 15

Hence, the row which has 174 seats is row 15.

<h3>________________________________________________</h3>
5 0
2 years ago
A charity has received donations totaling $2370. However, this is only two-fifths of its goal
quester [9]
2370 / (2/5) = x / 1...2370 to 2/5 = x to 1
cross multiply
(2/5)(x) = (2370)(1)
2/5x = 2370
x = 2370 * 5/2
x = 11850/2 = 5925 <== their entire goal
4 0
3 years ago
Read 2 more answers
The difference of 2 numbers is 3 and their sum is 25. What are the numbers? 10 and 15 14 and 11 11 and 13 13 and 12
vagabundo [1.1K]

Let the two numbers be x and y

As given, the difference of two numbers is 3, so

x-y=3  or x=3+y ....(1)

And their sum is 25, so

x+y=25   .....(2)

Putting x=3+y in equation (2)

3+y+y=25

2y=22

y=11

As, x+y=25

x+11=25

x=14

So the two numbers are = 14 and 11


8 0
3 years ago
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