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2 years ago

Help? :,) I know it might look easy but not for me!!

Mathematics

1 answer:

ehidna [41]2 years ago

3 0

The answer is c = 11mm

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Danielle earns $36.80 for 4 hours of yardwork. MacKenzie earns $50.40 for 6 hours of yardwork. Who earns more money per hour? HI

Elden [556K]

Answer:

Danielle earns more in 1 hours and $0.80 more than MacKenzie

Step-by-step explanation:

Given : Danielle earns $36.80 for 4 hours of yardwork. MacKenzie earns $50.40 for 6 hours of yardwork.

To find : Who earns more money per hour? How much more

Solution : We have given

Danielle earns in 4 hours = $36.80 .

Danielle earns in 1 hours = .

Danielle earns in 1 hours = $9.20 .

MacKenzie earns in 6 hours = $50.40

MacKenzie earns in 1 hours = .

MacKenzie earns in 1 hours = $8.40.

We can see Danielle earns more in 1 hours .

How much = $9.20 - $8.40.

= $0.80.

Therefore, Danielle earns more in 1 hours and $0.80 more than MacKenzie

Step-by-step explanation:

7 0

2 years ago

Read 2 more answers

A sink has two faucets: one for hot water and one for cold water. The sink can be filled by a cold water faucet in 3 minutes. If

iragen [17]

Answer: $6\ minutes$

Step-by-step explanation:

You can use the following formula:

$\frac{T}{A}+\frac{T}{B}=1$

You can say that "T" is the time (in minutes) for both faucets working together, "A" is the time (in minutes) for cold water faucet working alone and "B" is the time (in minutes) for hot water faucet working alone.

Based on the data given in the exercise, you can identify that:

$T=2\\A=3$

Therefore, substituting these values into the formula and solving for "B", you get that this is:

$\frac{2}{3}+\frac{2}{B}=1\\\\\frac{2}{B}=1-\frac{2}{3}\\\\\frac{2}{B}=\frac{1}{3}\\\\2=\frac{1}{3}B\\\\2*3=B\\\\B=6$

3 0

2 years ago

What is the value of f(-3)

Readme [11.4K]

$f(x)=\left\{\begin{array}{ccc}-2&if&x < -3\\4x&if&-3\leq x\leq-1\\x^2&if&x > -1\end{array}\right\\\\-3\leq-3\leq-1\to f(x)=4x\\\\f(-3)=4(-3)=-12$

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2 years ago

HELPPPPPPPPP PLEASEEEEE<br><br> Write the perimeter of the triangle as a polynomial

GuDViN [60]

It’s either B or D. I’m sorry I’m not so sure but I think it’s either one of those.

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2 years ago

Which of the following are solutions to the equation below? Check all that apply. 15x2 - 44x + 32 = 0

krek1111 [17]

If you want to find the solutions for this you have to factor it. Since it's a second degree polynomial, you'll have 2 solutions. Factoring this using the quadratic formula, you'll get factors of (5x-8)(3x-4). Solving these for x you get x = 8/5 and x = 4/3.

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3 years ago