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3 years ago

End SAYS 130 HELPPPP

Mathematics

2 answers:

Mashcka [7]3 years ago

6 0

B that is your correct answer

vivado [14]3 years ago

3 0

Answer:

it might be d

Step-by-step explanation

You might be interested in

8 customers entered a store over the course of 16 minutes. At what rate were the

alisha [4.7K]

Answer:

2 minutes

Step-by-step explanation:

Just divide 16 and 8.

Hope this helped you!

6 0

3 years ago

The table shows the number of miles 3 runners ran last week. Order the numbers from least to greatest. Which runner ran the fart

creativ13 [48]

If you edit the question or repost I can answer if you provide an image! :D

7 0

3 years ago

Help with these questions plzz 21,22,23 PLZZZ

vivado [14]

Let x represent the original number of books (the value we're asked for by the problem question). Then after this number was doubled, its was 2x. After 4028 was added, it was 2x+4028. That value is given by the problem statement as being 51,514, so the equation can be ...

... 2x + 4,028 = 51,514

... 2x = 47,486 . . . . . . . . . . . subtract 4028

... x = 23,743 . . . . . . . . . . . . divide by 2

The library had 23,743 books before the transactions described.

Let t represent the number of minutes required for you to finish. Then in t minutes, you have prepared 2t carrots. The number of carrots you need can be described by ...

... 2t + 18 = 60

... t + 9 = 30 . . . . . . divide by the coefficient of t

... t = 21 . . . . . . . . . . subtract 9

It will take you 21 minutes to finish.

<h2>23.</h2><h3>Given</h3>

cost is $39.95 plus $0.35 for each minute over 500

cost as a function of the number of minutes usage over 500
the number of minutes over 500 for a bill of $69.70

<h3>Solution</h3>

Let m represent the number of minutes usage over 500. Let c(m) represent the cost as a function of m. The given relation can be expressed as

... c(m) = 39.95 + 0.35m

We can substitute the bill information to find m:

... 69.70 = 39.95 + 0.35m

... 29.75 = 0.35m . . . . . . . . . subtract 39.95

... 85 = m . . . . . . . . . . . . . . . . divide by 0.35

The number of minutes over 500 for a bill of $69.70 is 85 minutes.

5 0

3 years ago

A radio tower has a 64 ft Shadow cast by the sun. If the angle from the tip of the shadow to the top of the tower is 78.5°. what

Softa [21]

Step-by-step explanation:

right-angled triangle, and law of sine (for any type of triangles) :

a/sin(A) = b/sin(B) = c/sin(C)

where the sides and the correlated angles are always opposite from each other.

and we know that the sum of all angles in a triangle is always 180°.

so, the angle at the foot of the radio tower is 90°.

the angle from the top of the shadow to the top of the tower is 78.5°.

so, the third angle (at the top of the tower) is

180 - 90 - 78.5 = 11.5°

and with the law of sine we get

height/sin(78.5) = 64/sin(11.5)

height = 64×sin(78.5)/sin(11.5) = 314.57005... ft

6 0

2 years ago

Suppose you like to keep a jar of change on your desk. Currently, the jar contains the following: 17 Pennies 10 Dimes 19 Nickels

MatroZZZ [7]

Answer:

0.0688 = 6.88% probability that you reach into the jar and randomly grab a nickel and then, without replacement, a penny.

Step-by-step explanation:

A probability is the number of desired outcomes divided by the number of total outcomes.

Probability of grabbing a nickel:

19 nickels out of 17+10+19+23 = 69 coins, so:

$P(A) = \frac{19}{69}$

Probability of grabbing a penny, considering the first coin grabbed was a nickel:

17 pennies out of 68 coins. So

$P(B|A) = \frac{17}{68} = \frac{1}{4}$

What is the probability that you reach into the jar and randomly grab a nickel and then, without replacement, a penny?

$P(A \cap B) = P(A)P(B|A) = \frac{19}{69} \times \frac{1}{4} = \frac{19}{69*4} = 0.0688$

0.0688 = 6.88% probability that you reach into the jar and randomly grab a nickel and then, without replacement, a penny.

6 0

3 years ago