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Mathematics

1 answer:

yuradex [85]2 years ago

3 0

Answer:

Your answer is A:5

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Music lessons cost $20 per week. How much do 6 weeks of lessons cost? i need the expression

Darya [45]

Answer:

20+20+20+20+20+20= 120

Step-by-step explanation:

2^6 = 120 hope this helps! plz mark brainliest

7 0

3 years ago

Read 2 more answers

How many times 0.05 is 0.5

rosijanka [135]

To answer your question:
0.5 is 10 times greater than 0.05

8 0

3 years ago

Use the given information to find the unknown value:y varies directly as the square of z. When x = 2, then y= 20. Find y when 2

Vladimir79 [104]

Answer

y = 45 when x = 3

Step-by-step explanation:

$\begin{gathered} \text{Given that y varies directly as the square of x} \\ \text{This implies that there is a positive relationship betwe}en\text{ y and the square of z} \\ \text{Mathematically, this can be expressed as} \\ y\text{ }\propto x^2 \\ To\text{ turn this expression into an equation, we n}eed\text{ to introduce a proportionality constant k} \\ y=kx^2 \\ \text{ According to the question, y = 20 and x = 2} \\ \text{From the above informaion we can find our k} \\ y=kx^2 \\ 20\text{ = k }\cdot2^2 \\ 20\text{ = k }\cdot\text{ 4} \\ \text{Divide both sides by 4} \\ \frac{20}{4}\text{ = }\frac{k\cdot\text{ 4}}{4} \\ k\text{ = 5} \\ \text{ Find y when }x\text{ = 3} \\ y=kx^2 \\ y\text{ = 5 }\cdot(3)^2 \\ y\text{ = 5 }\cdot\text{ 9} \\ y\text{ = 45} \end{gathered}$

8 0

1 year ago

Is (1,2) a solution of 6x-y>3

tangare [24]

Answer:

Yes

Step-by-step explanation:

To determine if (1, 2 ) is a solution of the inequality, substitute the coordinates into the inequality and if satisfied then they are a solution, that is

(6 × 1) - 2 = 6 - 2 = 4 > 3

Since 4 > 3 then (1, 2 ) is a solution

3 0

2 years ago

What is 8 5/6 + 1 1/7

Lunna [17]

Answer:

9 9/14

Step-by-step explanation:

7 0

3 years ago