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Varvara68 [4.7K]
3 years ago
12

PLEASE DO NOT STEAL POINTS A cement mason starts making concrete by mixing 212 pounds of sand to 314 pounds of gravel. The mason

uses 414 pounds of sand and gravel to start the concrete. How many pounds of gravel does the mason use?
the options for the answers are
a. 180 pounds
b. 234 pounds
c. 318 pounds
Mathematics
2 answers:
Natalka [10]3 years ago
8 0

Answer:

Step-by-step explanation: its a

morpeh [17]3 years ago
5 0
I think the answer is B I’m really sorry if I’m wrong I truly tried!!!
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How many solutions can have two intersecting lines have?<br> A. 3<br> B. 0 <br> C. 1
Vladimir [108]

two intersecting lines can only have 1 solution.

4 0
3 years ago
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Evaluate: 2-^4=<br> A.1/16<br> B.1/8<br> c. -8<br> D.-16
SIZIF [17.4K]

Answer:

A. 1/16

Step-by-step explanation:

{2}^{ - 4}  =  \frac{1}{ {2}^{4} }  =  \frac{1}{16}  \\

6 0
2 years ago
Hey!!! What is −6+(−12)
SSSSS [86.1K]

Answer:

-18

Step-by-step explanation:

Essentially the same as (-6) - 12

7 0
3 years ago
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The percentage of people under the age of 18 was 23.5% in New York City, 25.8% in Chicago, and 26% in Los Angeles.
Hatshy [7]

Answer:

0.0158 = 1.58% probability that all of them are under 18.

Step-by-step explanation:

Probability of independent events:

If three events, A, B and C are independent, the probability of all happening is the multiplication of the probabilities of each happening, that is:

P(A \cap B \cap C) = P(A)P(B)P(C)

The percentage of people under the age of 18 was 23.5% in New York City, 25.8% in Chicago, and 26% in Los Angeles.

This means that P(A) = 0.235, P(B) = 0.258, P(C) = 0.26

If one person is selected from each city, what is the probability that all of them are under 18?

Since the three people are independent:

P(A \cap B \cap C) = 0.235*0.258*0.26 = 0.0158

0.0158 = 1.58% probability that all of them are under 18.

8 0
2 years ago
Find KL and show work
MissTica

Answer:

<u>Secant</u>: a straight line that intersects a circle at two points.

<u>Intersecting Secants Theorem</u>

If two secant segments are drawn to the circle from one exterior point, the product of the measures of one secant segment and its external part is equal to the product of the measures of the other secant segment and its external part.

From inspection of the given diagram:

  • M = Exterior point
  • MK = secant segment and ML is its external part
  • MS = secant segment and MN is its external part

Therefore:

⇒ ML · MK = MN · MS

Given:

  • MK = (x + 15) + 6 = x + 21
  • ML = 6
  • MS = 7 + 11 = 18
  • MN = 7

Substituting the given values into the formula and solving for x:

⇒ ML · MK = MN · MS

⇒ 6(x + 21) = 7 · 18

⇒ 6x + 126 = 126

⇒ 6x = 0

⇒ x = 0

Substituting the found value of x into the expression for KL:

⇒ KL = x + 15

⇒ KL = 0 + 15

⇒ KL = 15

6 0
1 year ago
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