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valentina_108 [34]
3 years ago
12

Julio checked the temperature of a bag of frozen peas and found it was at −12°C. After he left the bag out of the freezer for an

hour, its temperature rose to 7°C. What was the change in temperature in an hour?
Mathematics
1 answer:
andrey2020 [161]3 years ago
6 0

The temperature increased by 19°C

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A tree in leilas backyard has been growing for 3 1/5 years. It is 3/4 meters tall how many meters per year?
IgorC [24]

Answer:

The tree grew 15/64 meters per year.                  

Step-by-step explanation:

Given

  • Length of a tree = 3/4 meters
  • Total time taken by the tree to grow 3/4 taller = 3 1/5 or 16/5 years

To determine

Per year growth of the tree in meters

Per year growth of the tree in meters can be determined by dividing the total length of a tree i.e. 3/4 meters by the total time taken by the tree to get 3/4 taller.

Per year growth of tree = Total Length  / Total time to grow

                                       = 3/4 ÷ 16/5

                                        = 3/4 × 5/16

                                        = [3×5] / [4×16]

                                        = 15/64 meters

Therefore, the tree grew 15/64 meters per year.                  

4 0
2 years ago
10. Write an equation of your own that has no solution. Transform the equation to demonstrate that it has no solution
wolverine [178]
4(x+5)+6=2(2x+3)
4x+20+6=4x+6
4x+26=4x+6
Get letters on left...so subtract 4x from right and do same to left
26=6 
no solution because 26 does not equal 6
4 0
3 years ago
Read 2 more answers
) What is the area of triangle QBA? Enter only the number to represent the area below. plz i need the answer
olasank [31]

Answer:

14

Step-by-step explanation:

Even though the triangle is "upside down"

a = (1/2)bh

b is QB = 4

h is QA = 7

a = (1/2) * 4 * 7

a = 14

8 0
3 years ago
Solve the following using Substitution Method. <br> c= 3d - 27<br> 4d + 10c =120
svp [43]

Answer:

d=30-5c/2

Step-by-step explanation:

Move all terms that don't contain d to the right side and solve

8 0
3 years ago
Juniper wants to make a new rectangular garden in her backyard that has a length that is 2 more than twice the width. She needs
lisabon 2012 [21]

Answer:

2x+2y ≤ 64

x=2y+2

Step-by-step explanation:

x = length

y = width

the length is 2 more than twice the width or 2 more than twice y

x = 2+2y

the perimeter of the garden = 2 times the length + 2 times the width

she have 64ft of wire so the perimeter should be equal or less than 64 ft

64 ≥ 2x + 2y

5 0
2 years ago
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