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ivann1987 [24]
3 years ago
15

Help me with this problem​

Mathematics
1 answer:
Dima020 [189]3 years ago
4 0

Answer:

a. Ryan 70mph. Janelle 65mph.

b. 4 hours and 48 minutes.

Step-by-step explanation:

a. Ryan 245/3.5=70 mph. Janelle 260/4=65 mph.

b. If Janelle drives 575 miles with the speed of 65 mph, in total it would take her 575/65=8.8 hours, which is 4.8 hours more than 4 hours. (0.8 hours is 48 minutes).

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Princess Poly found the king's stash of garden plans and sees that the area of each plot is described as a polynomial. She has n
tankabanditka [31]

Answer:

75

Step-by-step explanation:

5 0
3 years ago
How to set the answer up
Korolek [52]

Let s and g represents the numbers of suits and gowns produced.

The number of zippers used is 2s+g.

The number of buttons used is 5s+8g.

In order to use all of the available zippers and buttons, we must have ...

  • 2s + g = 171
  • 5s + 8g = 576

Cramer's rule tells you the solution to the system

  • ax +by = c
  • dx +ey = f

Is given by

  • x = (bf-ey)/(bd-ea)
  • y = (cd-fa)/(bd-ea)

Using this rule on the equations for zippers and buttons, we have

... s = (1·576 -8·171)/(1·5 -8·2) = -792/-11 = 72

... g = (171·5 -2·576)/-11 = -297/-11 = 27

72 suits and 27 gowns can be made from available zippers and buttons.

3 0
4 years ago
Lucy scored 65 points in a game. Eva scored e points in the same game
kondor19780726 [428]
I guess you need to find what E is, though sadly this isnt enough information to me....
6 0
3 years ago
Please help! i literally suck at geometry
sdas [7]
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8 0
3 years ago
What is the scale factor for pre-image IJKH to image MNOL?
solniwko [45]

Answer:

Step-by-step explanation:

Given are two rectangles MNOL and IJKH

MNOL is the image and IJKH is the preimage.

OBviously similarity is preserved between these.

Hence sides will be proportional

i.e. l1/l2 = w1/w2 = Scale factor k

This can also be written as

Scale factor square = k^2=\sqrt{ \frac{areaI}{area2} }

Scale factor = square root of ratio of rectangle areas

Find ratio as

\frac{375}{135} =\frac{25}{9}

k = Scale factor = square root of the above fraction

=\frac{5}{3}

5 0
4 years ago
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