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3 years ago

A student has a class with four tests, each worth 100 points, and has earned these

Mathematics

1 answer:

Wewaii [24]3 years ago

4 0

Answer:

average = 52, 100 on fourth test

Step-by-step explanation:

average = 75 + 74 + 71 = 156 / 3 = 52

average = 52

b grade = 75 + 74 + 71 + 100 = 320 / 4 = 80

to get a b grade she must get 100 on her fourth test

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bixtya [17]

Answer:

25 chapter books

Step-by-step explanation:

117 - (23×4)

[23×4=92]

.°. 117 - 92 = 25

7 0

3 years ago

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asambeis [7]

Try 2(20-9x) or 40-18x

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3 years ago

PLEASE HELP IF POSSIBLE :)

MariettaO [177]

Answer:

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Step-by-step explanation:

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3 years ago

What is the least common denominator (LCD) for these fractions? 2/7 and 9/10

yanalaym [24]

Answer:

Step-by-step explanation:

7 and 10 = 70, This is the correct answer because 7 times 10 equals 70, and 10 times 7 equals 70 too, so 70 is the LCD

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7 and 10 = 35, Only 7 times 5 equals 35, but 10 times a whole number does not equal 35. X

4 0

3 years ago

Given z=f(x,y),x=x(u,v),y=y(u,v), with x(4,1)=5 and y(4,1)=2, calculate zv(4,1) in terms of some of the values given in the tabl

Yuliya22 [10]

$z=f(x(u,v),y(u,v))\implies z_v=f_xx_v+f_yy_v$

$z_v(4,1)=f_x(5)x_v(4,1)+f_y(2)y_v(4,1)$

No table = incomplete answer

3 0

3 years ago