Pls help me I’m really dumb

Answer:

25 and 12

Step-by-step explanation:

1) x+y=37

x-y=13 or x=13+y

Put x=13+y into equation 1:

13+y+y=37

y+y=24

y=12

x=25

Answer:

Expected value = $32

Step-by-step explanation:

Given:

Check amount = $0, $20, $30, $35, $75

Find:

Expected value

Computation:

Expected value = [$0 + $20 + $30 + $35 + $75] / 5

Expected value = [$160] / 5

Expected value = $32

Answer:

Number 1

Step-by-step explanation:

-5(m + 1) ≤ 23

Distribute

-5m - 5 ≤ 23

-5m ≤ 23 + 5

-5m ≤ 28

-m ≤ 28/5

Since we divide by a negative the ≤ flips to ≥

m ≥ -28/5

Hope this helps :3

Answer:

How to tell the difference: A proportional graph is a straight line that always goes through the origin. A non-proportional graph is a straight line that does not go through the origin.

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

a 90 percent would be 108

Answer:

Yes she earn an A Because 90% of 120 is 108 which means that she scored 109 which means  90% of 120 is 108 which means that she scored 109  in which means approximately 91% proving that she got an A

Step-by-step explanation:

Magic

Answer:

Your answer is c hope this helps

Answer:

17

Step-by-step explanation:

Let's solve your equation step-by-step.

6x+78=180

Step 1: Subtract 78 from both sides.

6x+78−78=180−78

6x=102

Step 2: Divide both sides by 6

6x/6=102/6

x=17

Answer:

x = 17

Step-by-step explanation:

If you subsitute x in "2x" you get 34. If you subsitute x for "4x - 4" you get 64.

After subtracting 180 from 98 you get 82. Add up 34, 64, and 82 then you get 180.

Answer:

Prob because you were giving away free points or broke the rules.

Answer:

Step-by-step explanation:

4x - 27 = 2(x + 9)

2x = 27 + 18

x = 45 ÷ 2 = 22.5

QP = 4(22.5) - 27 = 63 units

Answer:

32/125 I think this is the answer

Step-by-step explanation:

Answer: 32/125

Step-by-step explanation:

Answer:

It is one half 1

                    2

Step-by-step explanation:

did test on edg 2020

Answer:

c on edge 2021  

Step-by-step explanation:

1/2

Answer:

4 emails per minute

Step-by-step explanation:

20/5=4

Answer:

40

Step-by-step explanation:

3x2=6 so 20x2=40. It is a 6.66:1 ratio.

The value of the unknown number in the equation 20/3 = ?/6 is 40.

Given the equation in the question:

20/3 = ?/6

To solve the equation 20/3 = ?/6, first represent the missing number with x:

20/3 = x/6

Cross-multiply and solve for the unknown value.

x × 3 = 20 × 6

Multiply 3 and x:

3x = 20 × 6

Multiply 20 and 6:

3x = 120

Next, divide both sides by 3:

3x/3 = 120/3

x = 120/3

x = 40

Therefore, the value of x is 40.

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The required expression that is equivalent to 18c + 144, is 18(c + 144).

Given that,
To determine the equivalent expression to 18c + 144.

The process in mathematics to operate and interpret the function to make the function or expression simple or more understandable is called simplifying and the process is called simplification.

Here,
The given expression,
= 18c +144
Taking 18 commons from the above equation,
= 18(c + 18)

Thus, the required expression that is equivalent to 18c + 144, is 18(c + 144).

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Answer:

sorry just need points

Step-by-step explanation:

Answer:

6(x-2)+4

Slope=6

Step-by-step explanation:

Answer:

g(6) = 8

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define

g(n) = n + 2

g(6) is n = 2

Step 2: Evaluate

Answer:

7/n

Step-by-step explanation:

14/2n=7/n

Answer:

8

Step-by-step explanation:

8 times would you expect to draw a blue marble.

Probability is simply how likely something is to happen. Whenever we're unsure about the outcome of an event, we can talk about the probabilities of certain outcomes—how likely they are.

Given:

Total marbles = 10

Blue marbles=2

Number of times= 40

So, the number of times would you expect to draw a blue marble

=2/10 *40

=80/10

=8

Hence, 8 times would you expect to draw a blue marble.

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Answer:

The 95% confidence interval for the true population proportion is (0.27, 0.33).

Step-by-step explanation:

The (1 - α)% confidence interval for population proportion of is:

[tex]CI=\hat p \pm z_{\alpha/2}\cdot\sqrt{\frac{\hat p(1-\hat p)}{n}}[/tex]

The information given is:

[tex]\hat p=0.30\\n=765\\\text{Confidence level}=95\%[/tex]

The critical value of z for 95% confidence level is, 1.96.

Compute the 95% confidence interval for the true population proportion as follows:

[tex]CI=\hat p \pm z_{\alpha/2}\cdot\sqrt{\frac{\hat p(1-\hat p)}{n}}[/tex]

    [tex]=0.30\pm 1.96\times\sqrt{\frac{0.30(1-0.30)}{765}}\\\\=0.30\pm 0.0325\\\\=(0.2675, 0.3325)\\\\\approx (0.27, 0.33)[/tex]

Thus, the 95% confidence interval for the true population proportion is (0.27, 0.33).

Answer:

1.23

Step-by-step explanation:

Answer:

$1.42

Step-by-step explanation:

0.71 *2 = 1.42

bcz we need 2 pounds

Answer:

Step-by-step explanation:

The gcf of 9 and 45 can be obtained like this: The factors of 9 are 9, 3, 1. The factors of 45 are 45, 15, 9, 5, 3, 1. The common factors of 9 and 45 are 9, 3, 1, intersecting the two sets above

Answer:

Step-by-step explanation:

              Statements                                            Reasons

1). Triangle ABC is isosceles. D is          1). Given

   the midpoint of AC.

2). AD ≅ DC                                            2). Definition of midpoint

3). BA ≅ BC                                             3). Definition of an isosceles

                                                                     triangle.

4). BD exists                                            4). A single line segment can be

                                                                    drawn between any two points.

5). BD ≅ BD                                            5). Reflexive property

6). ΔABD ≅ ΔCBD                                 6). By SSS property of congruence

7). ∠BAC ≅ ∠BCA                                  7). CPCTC