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kvv77 [185]
3 years ago
9

Please help me with this!

Mathematics
1 answer:
arsen [322]3 years ago
5 0

Answer:

10 cm

Step-by-step explanation:

3.75 / 1.5 = 2.5

2.5 x 4= 10

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What is this this sos 3x-y=3? (x,y)=?
Mazyrski [523]
Rewrite the equation; 

3x-y=3 
3x-3=y 

Linear equation.

I'm unsure of what the second part asks. Can you rewrite the given question?
6 0
2 years ago
A nurse is computing the correct dosage of amoxicillin to give a child weighing 22 pounds. The correct dosage is 40 mg per kilog
OLEGan [10]

Answer:

Step-by-step explanation:

22 divided by 2.2 =9.97903

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5 0
3 years ago
What is the value of y in the solution to the system of equations? 1/3x + 1/4y = 1 2x-3y=-30​
Zepler [3.9K]

Answer:

<h2>y = 8</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}\dfrac{1}{3}x+\dfrac{1}{4}y=1&\text{multiply both sides by 12}\\2x-3y=-30\end{array}\right\\\left\{\begin{array}{ccc}12\!\!\!\!\!\diagup^4\cdot\dfrac{1}{3\!\!\!\!\diagup_1}x+12\!\!\!\!\!\diagup^3\cdot\dfrac{1}{4\!\!\!\!\diagup_1}y=12\cdot1\\2x-3y=-30\end{array}\right\\\left\{\begin{array}{ccc}4x+3y=12\\2x-3y=-30&\text{multiply both sides by (-2)}\end{array}\right\\\underline{+\left\{\begin{array}{ccc}4x+3y=12\\-4x+6y=60\end{array}\right}\qquad\text{add both sides of the equations}

.\qquad9y=72\qquad\text{divide both sides by 9}\\.\qquad y=8

6 0
3 years ago
How do I solve this? And how do I know what to do?
Vaselesa [24]
I know for sure A is true. How to solve: f(-3) basically means, what is the output value when x=-3? In this case, when x=-3, the output is indeed, 2.
3 0
3 years ago
A one pound brisket takes 50 minutes to cook at 375°F. How long would it take a 3 1/2 pound brisket to cook?
kenny6666 [7]
Assuming its the same temp, use this equation for pounds and minutes then solve:

\frac{1}{3.5} =  \frac{50}{x}

cross multiply 

50(3.5) = 175 minutes 

it'll take an 2 hours 55  minutes
8 0
3 years ago
Read 2 more answers
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