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Artist 52 [7]
3 years ago
14

What number is 40% of 30? Will Upvote

Mathematics
1 answer:
diamong [38]3 years ago
3 0
\displaystyle x \ is \ 40\% of 30 \\ ------------- \\ x= \frac{40}{10\not0} \cdot 3\not0  \\ \\ x= \frac{40}{10} \cdot 3\\\\ \\x= \frac{120}{10}  \\ \\ x=12
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I NEED HELP WITH THIS ASAP <br> I WILL GIVE BRAINLIEST
natita [175]

Answer

x=100

y= 4.5

x=6

y= 1.87

Step-by-step explanation:

4 0
2 years ago
Which of the following statements is true about the function presented in the table?
Lynna [10]

Answer:

C. The slope of the function is -2 and the y-intercept is 4.

Explanation:

The y-intercept is the point when x = 0. On the table when x is 0, y is 4.

The slope of the function is -2 because the y value is going down by 2 for each +1 of x.

      x │ y

    -2 │ 8

     0 │ 4

  ↓ +1   ↓ -2

      1 │ 2

  ↓ +1   ↓ -2

     2 │ 0

5 0
3 years ago
Idk how to do this 4x+y=1
ivolga24 [154]
4x+y=1
4x+y-1=1-1
4x+y-1=0
6 0
3 years ago
Since 2010, when 102390 Cases were reported, each year the number of new flu cases decrease to 85% of the prior year. Predict th
BaLLatris [955]

Answer:

20,158 cases

Step-by-step explanation:

Let t=0 represent year 2010.

We have been given that since 2010, when 102390 Cases were reported, each year the number of new flu cases decrease to 85% of the prior year.

Since the flu cases decrease to 85% of the prior year, so the flu cases for every next year will be 85% of last year and decay rate is 15%.

We can represent this information in an exponential decay function as:

F(t)=102,390(1-0.15)^t

F(t)=102,390(0.85)^t

To find number of cases in 2020, we will substitute t=10 in our decay function as:

F(10)=102,390(0.85)^{10}

F(10)=102,390(0.1968744043407227)

F(10)=20,157.970260446597\approx 20,158

Therefore, 20,158 cases  will be reported in 2020.

3 0
2 years ago
A school has two varsity basketball teams. One is the girls' team, and the other is the boys' team. On any given Saturday in Dec
belka [17]

The probability that either the girls' or boys' team gets a game is 0.85            

Step-by-step explanation:

Step 1:

Let P(G) represent the probability of girls team getting a game and P(B) represent the probability of the boys team getting a game.

P(B ∪ G) represents the probability of either girls and boys team getting a game.

P(B ∩ G) represents the probability of both girls and boys team getting a game.

Step 2:

It is given that P(G) = 0.8, P(B) = 0.7 and P(B ∩ G) = 0.65

We need to find the probability of either girls or boys team getting a game which is represented by P(B ∪ G)

Step 3:

P(B ∪ G) = P(B) + P(G) - P(B ∩ G)

= 0.8 + 0.7 - 0.65 = 0.85

Step 4:

Answer:

The probability that either the girls' or boys' team gets a game is 0.85

5 0
3 years ago
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