1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Novay_Z [31]
2 years ago
11

There are a total of 30 white and black marbles in a box. There are 14 more white marbles than black marbles. How many black mar

bles are in the box?​
Mathematics
1 answer:
disa [49]2 years ago
7 0

Answer:

16

Step-by-step explanation:

30-14=16

You might be interested in
What is the weight of a square if a triangle weighs 4 grams? Explain your reasoning
stellarik [79]

Answer:

8 grams

Step-by-step explanation:

The balance is in equilibrium, so the weights of the two sides are equal.

Let the weight of a square be s.

Left side: 2s + 4

Right side: s + 3(4) = s + 12

The weights are equal, so we set the two expressions equal.

2s + 4 = s + 12

s = 8

Answer: The weight of a square is 8 grams.

8 0
3 years ago
Coach Evans recorded the height, in inches of each player on his team. The results are shown.
never [62]

Answer:

3

Step-by-step explanation:

3 0
3 years ago
How to write two hundred thirty-eight thousand, five hundred thirty-three using suymbols please help
garri49 [273]
By symbol you mean number form? 238,533.
5 0
3 years ago
4x – 7y + 3z - 10<br><br> What's the coefficient of the 2nd term?
Illusion [34]
That would be 7 because it is placed in front of the y

6 0
3 years ago
In triangle ABC we have angle C = 3 times angle A, a=27 and c=48 What is b? Note: a is the side length opposite A etc. please he
Dima020 [189]

Answer:

  35

Step-by-step explanation:

The law of sines tells us ...

  sin(C)/c = sin(A)/a

  a·sin(3A) = c·sin(A)

Using the identity sin(3x) = 3cos(x)·sin(x) -sin(x)^3 and sin(x)^2 +cos(x)^2 = 1, we can simplify this to ...

  sin(A)(4cos(A)^2 -1) = (c/a)sin(A)

  4cos(A)^2 = c/a +1 = (48+27)/27 = 75/27 = 25/9

  cos(A)^2 = 25/36

  cos(A) = 5/6

__

Now, the angle B will be the difference between 180° and the sum of the other two angles:

  B = 180° -A -3A = 180° -4A

Using appropriate trig identities, we can write ...

  sin(B) = 4cos(A)^3sin(A) -4sin(A)^3cos(A)

  = 4sin(A)cos(A)(cos(A)^2 -sin(A)^2)

  = 4sin(A)cos(A)(2cos(A)^2 -1)

Filling in our value for cos(A), this becomes ...

  sin(B) = 4sin(A)(5/6)(2(5/6)^2-1) = sin(A)(35/27)

__

The law of sines tells us ...

  b/sin(B) = a/sin(A)

  b = a·sin(B)/sin(A) = 27(35/27)sin(A)/sin(A) = 35

The length of side b is 35 units.

6 0
2 years ago
Other questions:
  • You use 3 cans of soup to serve 5 people. If you want to serve 20 people, what should you do?
    6·2 answers
  • Round 415,203 to the thousands place
    15·2 answers
  • A rocket is launched from atop a 56-foot cliff with an initial velocity of 135ft/s.
    12·1 answer
  • Why is 3 * 1/10 less than 3*10
    6·1 answer
  • Regan earned a total of 15 by selling 5 cups of lemonade how many cups of lemonade does Reagan need to sell and altar on $42 ass
    10·1 answer
  • Someones answer q3 ill mark as brainliest pleaseee
    14·1 answer
  • Mr. Doss reached into a bag and pulled out a handful of counters. He pulled out 16 negative counters and 27 positive counters. W
    12·1 answer
  • Help me, please! I will mark the brainiest! ANY OFF TOPIC ANSWER WILL BE DELETED!
    8·1 answer
  • DONT answer if you don’t know
    5·1 answer
  • What is this question?​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!