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netineya [11]
3 years ago
5

Multiple choice/ please help!!!

Mathematics
1 answer:
Oxana [17]3 years ago
4 0

Answer:

All are right answer

But one is not (C)

There will no cot

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Mallory and Aimee save money for summer camp. They both plan to save the same amount of money. Mallory has 35$ and plans to save
Mrrafil [7]

Answer:

0.857 weeks

Step-by-step explanation:

Using the information provided we can create the following equations for the total amount Mallory (M) and Aimee (A) will save after x number of weeks...

M = 35 + 15x

A = 5 + 50x

Now we would need to make both of these equations equal one another and solve for x to calculate after how many week both Aimee and Mallory will have saved the same amount of money

35 + 15x = 5 + 50x  ... subtract 5 and 15x from both sides

30 = 35x  ... divide both sides by 35

\frac{30}{35} or 0.857 = x

Finally, we can see that after 0.857 weeks both Mallory and Aimee will have saved the same amount of money.

*** The process provided is correct but I believe that the actual values for Aimees savings should be $50 and plans to save $5 a week, this would make the final result 1.5 weeks which would make more sense***

5 0
4 years ago
Solve for the following equation <br> 1/2(2 – 4x) + 2x = 13
mart [117]

Answer:

no solution

Step-by-step explanation:

1/2(2-4x)+2x=13

We simplify the equation to the form, which is simple to understand

1/2(2-4x)+2x=13

Simplifying:

+ 0.5*(2-4x)+2x=13

Reorder the terms in parentheses

+(+1-2x)+2x=13

Remove unnecessary parentheses

+1-2x+2x=+13

We move all terms containing x to the left and all other terms to the right.

-2x+2x=+13-1

We simplify left and right side of the equation.

0x=+12

0=12

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

7 0
3 years ago
Help the question is on the image.​
Phantasy [73]

Answer:

\boxed {tan\theta = \frac{2}{3}}

Step-by-step explanation:

<u>Let's derive a formula</u> :

⇒ Area (triangle) × 3 = Area (square)

⇒ 1/2(bh) × 3 = a²

∴ But a = h (shown in diagram)

⇒ 3/2(bh) = h²

⇒ <u>h = 3b/2</u>

<u>Now, taking tan θ</u> :

⇒ tan θ = b/h

⇒ tan θ = b/(3b/2)

⇒ tan θ = 2b/3b

⇒ tan θ = 2/3

5 0
2 years ago
Solve the radical equation.
Scrat [10]

Answer:

there are no extraneous solutions to the equation

Step-by-step explanation:

Given

\sqrt{8x+9} = x + 2 ( square both sides )

8x + 9 = (x + 2)² ← expand

8x + 9 = x² + 4x + 4 ( subtract 8x + 9 from both sides )

0 = x² - 4x - 5 ← in standard form

0 = (x - 5)(x + 1) ← in factored form

Equate each factor to zero and solve for x

x - 5 = 0 ⇒ x = 5

x + 1 = 0 ⇒ x = - 1

As a check

Substitute these values into the equation and if both sides are equal then they are the solutions.

x = 5 : \sqrt{8(5)+9} = \sqrt{49} = 7

right side = 5 + 2 = 7

left side = right side ⇒ x = 5 is a solution

x = - 1 : \sqrt{8(-1)+9} = \sqrt{1} = 1

right side = - 1 + 2 = 1

left side = right side ⇒ x = - 1 is a solution

There are no extraneous solutions

4 0
3 years ago
Read 2 more answers
Which expression is the result of factoring the expression below by taking out its greatest common factor? 16x^2-8x=? Choose 1 a
Natasha2012 [34]

Answer:

I think it is A

Step-by-step explanation:

8 0
3 years ago
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