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Nostrana [21]
3 years ago
8

Julie wants to make 800 g of a 15% alcohol solution by mixing a

Mathematics
1 answer:
monitta3 years ago
6 0

Answer:

x =550

y=250

Step-by-step explanation:

.2x + .04y = 120

x + y = 800

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on a scale drawing, 5 metres is represented by 4 centimetres. write the scale as a ratio in it's simplest form.​
ryzh [129]

Answer:

<em>The scale factor is 1:125</em>

Step-by-step explanation:

<u>Scaling</u>

Objects can be represented in a reduced or augmented size by using scaling which consists of multiplying or dividing by a constant factor. We use scaling when representing geographic locations on a map.

On a scale drawing, a distance of 5 meters = 500 cm is represented by 4 centimeters. The scale factor is usually represented as a ratio of the smallest to the biggest magnitude:

\frac{4}{500}=\frac{1}{125}

The scale factor is 1:125

8 0
3 years ago
1. y =<br>(x - 1)(x + 3)<br>​
Nataliya [291]

Step-by-step explanation:

y=x(x+3)-1(x+3)

y= x^2+3x-x-3

y=x^2+2x-3

that is the answer

5 0
3 years ago
Drug X is to be administered intravenously at a dosage of 20 mg/kg. A patient weighing 60 kg should receive
arsen [322]

Answer:

D. 1200 mg

Step-by-step explanation:

In order to find the solution we need to understand that a dosage of 20 mg/kg means that 20 mg are administered to the patient for each kg of his/her weight.

So, if the patient weight is 60 kg then:

Total drug X = (20mg/Kg)*(60Kg)=1200mg.

In conclusion, 1200 mg will be administered to the patient, so the answer is D.

5 0
3 years ago
I think im in love right now
Jet001 [13]

No you aren't, sorry bro

4 0
3 years ago
20pts<br><br> Divide algebraic fraction pls<br><br><br> 12a2/18b2÷4a/3b
KonstantinChe [14]

Answer:

3a/6b

Step-by-step explanation:

12a^2/4a

= 12/4 * a^2/a

= 3a

18b^2/3b

= 18/3 * b^2/b

= 6b

Hence, the answer is 3a/6b.

Hope this helped!

5 0
3 years ago
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