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Xelga [282]
3 years ago
8

Can someone find all the answers for this test will give brainlest btw there are 31

Mathematics
1 answer:
rewona [7]3 years ago
5 0

Answer:

Um for what test?

Step-by-step explanation:

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I’ve been trying to move on but I can’t get through it can someone please help me out please please
nadya68 [22]

Answer:

84 - c

Step-by-step explanation:

The correct expression would be 84 - c

4 0
3 years ago
A rectangular prism has a volume 144 centimeters. The base is a square with a length of 4 cm. What is the height of the prism?
Vitek1552 [10]
The volume is the product of the height and the area of the base.
  V = Bh
The area of the square base is (4 cm)² = 16 cm², so the height can be found from
  144 cm³ = (16 cm²)h
  h = (144 cm³)/(16 cm² = 9 cm

The height of the prism is 9 cm.
6 0
3 years ago
X=-3y-5 3x+9y=7 how can u solve this?
pentagon [3]

Answer:


Step-by-step explanation:


5 0
3 years ago
Read 2 more answers
There are 1,296 in.2 in one square yard. Use a proportion to find out how many square yards of carpet it would take to cover te
masya89 [10]

Answer:

30

Step-by-step explanation:

3 0
3 years ago
Dave and Sandy Hartranft are frequent flyers with a particular airline. They often fly from City A to City B, a distance of 756
horsena [70]

Answer:

Plane = 441 mi/h; wind =  63 mi/h

Step-by-step explanation:

distance = rate × time

 Let p = the plane's speed in still air

and w = the wind speed . Then,

p + w = speed with wind

 p - w = speed against wind

We have two conditions:

(1)  756 = (p - w) × 2

(2) 756 = (p + w) × 1.5

Distribute the constants                  (3)    756 = 2p - 2w

                                                          (4)   756 = 1.5p + 1.5 w  

Multiply Equation (3) by 3                (5) 2268 = 6p  -  6w

Multiply Equation (4) by 4                (6) 3024 = 6p + 6w

Add Equations (5) and (6)                     5292 = 12p

Divide each side by 12                     (7)        p = 441 mi/h

Substitute (7) into Equation(3)                 756 = 882 - 2w

Add 2w to each side                      2w + 756 = 882

Subtract 756 from each side                    2w = 126

Divide each side by 2                                 w = 63 mph

The plane's speed in still air is 441 mi/h.

The wind speed is 63 mph.

Check:

(1) 756 = (441 - 63) × 2     (2) 756 = (441 + 63) × 1.5

   756 = 378 × 2                   756 = 504 × 1.5

   756 = 756                         756 = 756

8 0
3 years ago
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