please help me pleaseeeee​

Answer: 2/21

Step-by-step explanation:

5[5y -6] = 4[y -7]

We first need to open the bracket to be able to solve the question

25y - 30 = 4y - 28

Collect like terms

25y - 4y = -28 + 30

21y = 2.

y = 2/21

Therefore, the value for y is 2/21.

Answer:

1/8

Step-by-step explanation:

1/2 x 1/2 x 1/2

Answer:

1.5 lb

Step-by-step explanation:

Steps to determining the answer

Lb that would be needed for 1 square foot = 0.6 lb / 100 = 0.006

Lb needed for 250 square foot = 0.006 x 250 = 1.5 lb

Answer:

I think it is A

Step-by-step explanation:

All the other answers do not have a vertical reflection, and Figure A to Figure A' is a dilation and then a VERTICAL reflection.

Answer:-8/3

Step-by-step explanation:

given xy/3

putting vales of x and y

(-2)(4)/3

-8/3

Answer: B. 40

Step-by-step explanation:

We know that a triangle has to equal 180 degrees and we have measurements of two sides 49 and 91 we add those together to get 140 and subtract that from 180 to get you answer of B. 40

How the answer works :

I am using A, B, C, and D for the question.

What I think :

I think the answer is.... C

Real answer :

I got it correct, because it is.... C!

Answer:

√x-4 - 5

Step-by-step explanation:

a p E x

Answer:

D.

Step-by-step explanation:

A P E X

Answer:

x = -4 and y = -20

Step-by-step explanation:

y = 5x and 7x - 3y = 32

→ Substitute y = 5x into 7x - 3y = 32

7x - 15x = 32

→ Simplify

-8x = 32

→ Solve

x = -4

→ Substitute x = -4 into y = 5x

5 × -4 = -20

Answer:

Dan made more money last month

Step-by-step explanation:

15/100   10/100 Make the Percent's into decimal's and Dan's is still higher

Answer:

The 3 numbers are 9, 12, and 15.

Step-by-step explanation:

I will answer in English, below the answer you can see a translation in Catalan.

This can be translated to:

The sum of the squares of three consecutive and multiple natural numbers of 3 is equal to 450. Pose a quadratic equation and calculate the three numbers.

First, a multiple of 3 can be written as:

3*n

The consecutive multiple of 3 is:

3*n + 3

The consecutive multiple of 3 is:

3*n + 3 + 3

Then the sum of their squares is:

(3*n)^2 + (3*n + 3)^2 + (3*n + 6)^2

And we know that this is equal to 450, then we need to solve the equation:

(3*n)^2 + (3*n + 3)^2 + (3*n + 6)^2 = 450

let's solve this:

9*n^2 + (9*n^2 + 2*(3*n)*3 + 9) + (9*n^2 + 2*(3*n)*6 + 36) = 450

27*n^2 + 54*n + 45 = 450

we can write this as:

27*n^2 + 54*n + 45 - 450 = 0

27*n^2 + 54*n - 405 = 0

The solutions of this equation are given by the Bhaskara's formula, and the solutions are:

[tex]n = \frac{-54 \pm \sqrt{54^2 -4*27*(-415)} }{2*27} = \frac{-54 \pm 216 }{54}[/tex]

we know that our numbers are naturals, then the numbers are positives, which means that we only care for the positive solution of n, which is:

n = (-54 + 216)/54 = 3

Then the 3 numbers are:

3*n = 3*3 = 9

(3*n + 3) = (3*3 + 3) = 12

(3*n + 6) = (3*3 + 6) = 15

In Catalan:

En primer lloc, es pot escriure un múltiple de 3 com:

3 * n

El múltiple consecutiu de 3 és:

3 * n + 3

El múltiple consecutiu de 3 és:

3 * n + 3 + 3

Llavors, la suma dels seus quadrats és:

(3 * n) ^ 2 + (3 * n + 3) ^ 2 + (3 * n + 6) ^ 2

I sabem que això és igual a 450, llavors hem de resoldre l’equació:

(3 * n) ^ 2 + (3 * n + 3) ^ 2 + (3 * n + 6) ^ 2 = 450

resolem això:

9 * n ^ 2 + (9 * n ^ 2 + 2 * (3 * n) * 3 + 9) + (9 * n ^ 2 + 2 * (3 * n) * 6 + 36) = 450

27 * n ^ 2 + 54 * n + 45 = 450

podem escriure això com:

27 * n ^ 2 + 54 * n + 45 - 450 = 0

27 * n ^ 2 + 54 * n - 405 = 0

Les solucions d’aquesta equació vénen donades per la fórmula de Bhaskara, i les solucions són:

[tex]n = \frac{-54 \pm \sqrt{54^2 -4*27*(-415)} }{2*27} = \frac{-54 \pm 216 }{54}[/tex]

sabem que els nostres nombres són naturals, aleshores els nombres són positius, cosa que significa que només ens importa la solució positiva de n, que és:

n = (-54 + 216) / 54 = 3

Llavors els 3 nombres són:

3 * n = 3 * 3 = 9

(3 * n + 3) = (3 * 3 + 3) = 12

(3 * n + 6) = (3 * 3 + 6) = 15

Answer:

51

Step-by-step explanation:

You just subtract 9 from 60, hope this helps

Answer:

you need to plug in the values and see whether they work on both lines.

Answer:

dont know answer sorry minsan tama na sagot

Answer:

Mean, since it represents the most frequent number

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Answer: 32*

Explanation:

9x + 3x-10 + 2x-6 = 180

x = 14

3(14) - 10 = 32

I hope this helped!

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- Zack Slocum

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Answer:

<A=32

Step-by-step explanation:

9x+3x-10+2x-6=180

14x-16=180

14x=196

x=14

3(14)-10=

Answer: 300

Step-by-step explanation: First of all calcute how much per day, which is 5 miles. Then by 5 days which is 25. Now by 12 which is 300.

Hope this helped :)

Answer:

B

Step-by-step explanation:

Probability distribution B

Answer:

45 degrees is what i think

Step-by-step explanation:

Answer:

[f(1) - f(3)] / [1–3]

Step-by-step explanation:

Formula

f(x) = 6(2.5)

How to find

The average rate of change over the interval [a,b], or the secant line between the points a and b on the function f(x), is [f(a) - f(b)]/[a-b]. So, substitute a for 1 and b for 3, and you get [f(1) - f(3)] / [1–3]. The quotient of that is your average rate of change.

Answer:

The length of the leg is 8.7

Step-by-step explanation:

Formula:

a = √(c² - b²)

Substitute 9 for c and 2 for b:

a = √(9² - 2²)

a = √(81 - 4)

a = √77

a = 8.77496438739

Answer: 1 mph

Step-by-step explanation:

Given

Speed of Mariah is  [tex]v_m=6\ mph[/tex]

Bobby walks 4400 yards in 0.5 hr

speed of bobby is  

[tex]v_b=\dfrac{4400}{0.5\times 1760}=5\ mph\quad [\text{converting yards into miles by dividing by 1760}][/tex]

The difference in the speed of Mariah and bobby is

[tex]\Rightarrow v_m-v_b=6-5=1\ mph[/tex]

Answer:

The measurement of angle L is given by the expression 180° – 130°. So, angle L measures 50°.

Step-by-step explanation:

Answer:

2.4% as decimal will be 0.024.

Step-by-step explanation:

1) To convert to a decimal, divide the percent number by 100.

[tex]2.4 \div 100 = 0.024[/tex]

2) Therefore, the decimal form is 0.024.

[tex]0.024[/tex]

2.4% is equivalent to 0.024 as a decimal.

To convert 2.4% to a decimal, we divide the percentage value by 100. In this case, we divide 2.4 by 100:

2.4% = 2.4 / 100 = 0.024

Therefore, 2.4% as a decimal is 0.024.

When we convert a percentage to a decimal, we move the decimal point two places to the left. This is because a percentage is a value expressed as a fraction of 100. So, to express 2.4% as a decimal, we divide 2.4 by 100, resulting in 0.024.

To understand this conversion, consider that 100% is equivalent to the whole value, which is represented as 1 in decimal form. Any percentage less than 100% will be a fraction of that whole, expressed as a decimal less than 1. In this case, 2.4% is a small fraction of 1, which is 0.024.

To learn more about the decimal;

https://brainly.com/question/15945576

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Answer:

132 yd³

Step-by-step explanation:

To find the volume of a triangular prism, use this equation: V = (1/2bh) * h

V = (1/2(11 * 4)) * 6

Step 1: Multiply 11 by 4 to get 44.

V = (1/2(44)) * 6

Step 2: Multiply 1/2 by 44 to get 22.

V = 22 * 6

Step 3: Multiply 22 by 6 to get 132.

V = 132

The volume of the figure is 132 yd³.

I hope this helps!  (⌒ω⌒)