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Ierofanga [76]
3 years ago
6

The temperature rose from -7°F to 21°F. By how much did the temperature increase?

Mathematics
1 answer:
horrorfan [7]3 years ago
7 0

Answer: 28

Step-by-step explanation: you have to add 21 + 7 because your counting up from -7 to 21

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A rectangular playground is 888 meters wide. It is 333 times as long as it is wide.What is the area of the playground?
rjkz [21]
888×333= 295704 which is your length and the next step is to multiply your length times your width which would be 295704×333=262585152. So your FINAL ANSWER IS 262585152 METERS SQUARED
5 0
3 years ago
Read 2 more answers
What is 3/4 + 2/3 ???
erica [24]
To add fractions, first convert them to have equal denominators.

3/4= 9/12 (multiply both sides by 3)
2/3= 8/12 (multiply both sides by 4)

From here, add the numerators while keeping the denominator.
9/12+ 8/12= 17/12

Final answer: 17/12 or 1 5/12
3 0
3 years ago
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150 students attended the event they were 60 cars in the student parking lot what was the ratio of students to cars?
tatyana61 [14]
150 to 60. But the more commen why to do that were to simplify it.
6 0
3 years ago
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A small jet can fly
Lostsunrise [7]

Answer:

The speed of the jet in still air is 260 miles per hour.

Step-by-step explanation:

Given that a small jet can fly 858 miles in 3 hours with a tailwind but only 702 miles in 3 hours into a headwind, to find the speed of the jet in still air the following calculation must be performed:

858/3 = 286

702/3 = 234

(286 - 234) / 2 = X

52/2 = X

26 = X

286 - 26 = 234 + 26

260 = 260

Therefore, the speed of the jet in still air is 260 miles per hour.

7 0
3 years ago
Using Cramer’s Rule, what is the value of x in the system of linear equations below? x+3y=16 3x+y=8
alexdok [17]
Cramer's rule works as follows:
x+3y=16
3x+y=8
Then 
x=Dx/D
y=Dy/D
where Dx,Dy,D are 2x2 matrices formed from of coefficients and right hand side.
D=
1 3
3 1
=1-9=-8
Dx=matrix D with first column replaced by the vector [16,8]=
16,3
8 1
=16-24
=-8

Dy=matrix D with second column replaced by the vector [16,8]=
1 16
3 8
=8-48
=-40

Therefore
x=-8/-8=1
y=--40/-8=5

Check:
x+3y=1+3(5)=16
3x+y=3(1)+5=8   ok.
4 0
2 years ago
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