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Murljashka [212]
3 years ago
11

A student earned a grade of 80% on a math test that had 20 problems. how many problems on the test did the student answer

Mathematics
1 answer:
Mekhanik [1.2K]3 years ago
3 0
16 questions where answered correctly.
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Solve the system of linear equations by substitution.<br><br> 4x−2y=14<br> y=0.5x−1
ANEK [815]
4x - 2(0.5x-1) =14
4x - 1x +2 = 14
3x + 2 = 14
X= 4
Plug that into second equation to get y
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Jacob's school is selling tickets to a baseball game. On the first day of ticket
kondor19780726 [428]

Answer

sheeesh

Step-by-step explanation:

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What capacity that is more appropriate for a soup bowl,200 liters or 300 milliliters
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300 milliliters would be more appropriate for a soup bowl  :)
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3 years ago
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Find equations of the line that is parallel to the z-axis and passes through the midpoint between the two points (0, −4, 9) and
Lorico [155]

Answer: x = -4, y = 0.5, z = 5 +t

Hi!

The line L whose direction is parallel to vector V a passes through point A

is parametrized

P_L = Vt + A

Where t, is a real number, and P_L is a any point on line L.

In this case the direction is that of the z-axis , so V = (0, 0, 1)

A is the midpoint between points B = (0, -4, 9) and C=(-8, 5, 1)

The midpoint is A = (B + C)/2 = (-4, 0.5, 5)

Then the line is:

P_L = (0,0,1) t + (-4, 0.5, 5)

The equations for each coordinate are:

x = -4\\y = 0.5\\z = 5 + t

7 0
3 years ago
Combine Like terms 3(2x-7)+(2x-3)
aniked [119]

Answer:

8x-24

Step-by-step explanation:

We open parenthesis, so we get:

6x-21+2x-3

Then, simplify by adding like terms:

8x-24 is your answer :)

Stay golden :)

5 0
3 years ago
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