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Luda [366]
2 years ago
15

A "B" grade on a test is 85%. How many questions can you miss on a 35-question exam and get a B.

Mathematics
2 answers:
vekshin12 years ago
4 0

Answer:

5

Step-by-step explanation:

If all question are worth same same amount of points, you can miss 5 questions out of 35 and get an 86. If you miss 6 questions you would get an 83.

hope this helped!

PSYCHO15rus [73]2 years ago
3 0

Answer:

5

Step-by-step explanation:

You might be interested in
Six plus four times a number plus four times four minus four times the number no
zalisa [80]

Answer:

The resultant expression would be 22 - 12x

Step-by-step explanation:

Let x be the unknown number,

Six plus four times a number = 6 + 4x

Four times four minus four times the number number = 4(4 - 4x)

Thus, Six plus four times the number plus four times four minus four times the number number = 6 + 4x + 4(4 - 4x)

Using distributive property,

6 + 4x + 16 - 16x

Combining like terms,

22 - 12x

5 0
3 years ago
3x-2y=14 <br> y=5x<br><br> Solve by substitution
irina [24]
3x - 10x = 14

-7x = 14

x = -2
5 0
3 years ago
PLZZ GIVING BRAINILEST
ankoles [38]

Answer:

  1. 3.5(1.6 + 4.6 - 8.5) - 9.75
  2. = 3.5(-2.3) - 9.75
  3. = -8.05 - 9.75
  4. = -17.8

Step-by-step explanation:

  1. 1.6 + 4.6 - 8.5 = -2.3
  2. 3.5(-2.3) = 3.5 × -2.3 = -8.05
  3. -8.05 - 9.75 = -17.8

I hope this helps!

3 0
3 years ago
What is the common difference of the following arithmetric sequence? 102,100,98,96...
pshichka [43]

the common difference is two of course

3 0
3 years ago
Find the values of x on the interval [−π, π] where the tangent line to the graph of y = sin(x) cos(x) is horizontal. (Enter your
Lady_Fox [76]
A trig identity is <span>asinucosu=<span>a/2</span>sin(2u)</span>So you can write your equation as<span>y=sin(x)cos(x)=<span>1/2</span>sin(2x)</span>Use the crain rule here<span><span>y′</span>=<span>d/<span>dx</span></span><span>1/2</span>sin(2x)=<span>1/2</span>cos(2x)<span>d/<span>dx</span></span>2x=cos(2x)</span>The curve will have horizontal tangents when y' = 0.<span><span>y′</span>=0=cos(2x)</span>On the interval [-pi, pi], solution to that is<span><span>x=±<span>π4</span>,±<span><span>3π</span>4</span></span></span>
6 0
3 years ago
Read 2 more answers
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