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Akimi4 [234]
3 years ago
5

Can somebody help with this I will mark you brainly. please show your work

Mathematics
2 answers:
Dvinal [7]3 years ago
7 0

Answer:

4.5

Step-by-step explanation:

360 divided by 80 = 4.5

galina1969 [7]3 years ago
7 0

Answer:

4.5 hours

Step-by-step explanation:

80 mph means that each hour 80 miles were driven

so you can do 360 / 80 = 4.5

proof 80 miles * 4.5 hours = 360 miles

Hope this helps!

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jolli1 [7]

Answer:

4.1, 2.21, 0.25,0.042

Step-by-step explanation:

you have to add a 0 onto the first one because it will bring it to be equal to most of the others

3 0
3 years ago
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Find an equation of the line that is perpendicular to the graph of 2x+5y=5 and contains the point of intersection of the graphs
gavmur [86]

Answer:

  5(x+1) -2(y-3) = 0

Step-by-step explanation:

For a given line ax+by=c and point (h, k), a perpendicular line through the point can be written as ...

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A graphing calculator shows the point of intersection of the graphs of the two lines to be (x, y) = (-1, 3), so the line perpendicular to 2x+5y=5 through that point can be written ...

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In the attached graph, the requested line is shown in black.

3 0
3 years ago
Carlotta handpaints T-shirts and sells them to her friends. She uses the equations below to determine her costs and the amount o
spayn [35]
Profit = Income - cost
Profit = 10s - (28 + 3s) = 10s - 28 -3s = 7s - 28.

Profit = 0

0 = 7s - 28

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Carlota must sell more than 4 shirts to make a profit
8 0
3 years ago
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Simplify the difference.<br> (6w^2 - 5w - 8) – (7w^2 + 4w - 2)
BlackZzzverrR [31]

Answer:

42w^2-20w^2+16

Step-by-step explanation:

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Write a polynomial of least degree with rational coefficients, a leading coefficient of 1, and zeros at 3 and sqr root 7. Expand
Tresset [83]

Answer:

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just change the sign of the root and put x in front of it, then multiply the factors all together

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Step-by-step explanation:

6 0
3 years ago
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