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ra1l [238]
3 years ago
9

The sum of two numbers is 65 . One number is 4 times as large as the other. What are the numbers?

Mathematics
1 answer:
disa [49]3 years ago
3 0

Answer:

13

Step-by-step explanation:

65=5x(because number A is four times number B therefore, it is really B five times)

Then divide both sides by 5.

13=x

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A supply company manufactures masks and ventilators for hospitals. To maintain hugh quality, the company should not manufacture
notsponge [240]

Answer:

20 masks and 100 ventilators

Step-by-step explanation:

I assume the problem ask to maximize the profit of the company.

Let's define the following variables

v: ventilator

m: mask

Restictions:

m + v ≤ 120

10 ≤ m ≤ 50

40 ≤ v ≤ 100

Profit function:

P = 10*m + 65*v

The system of restrictions can be seen in the figure attached. The five points marked are the vertices of the feasible region (the solution is one of these points). Replacing them in the profit function:

point          Profit function:

(10, 100)    10*10 + 65*100 = 6600

(20, 100)    10*20 + 65*100 = 6700    

(50, 70)      10*50 + 65*70 =  5050

(50, 40)     10*50 + 65*40 = 3100

(10, 40)      10*10 + 65*40 =  2700

Then, the profit maximization is obtained when 20 masks and 100 ventilators are produced.

4 0
3 years ago
Which numbers round to 7.91 when rounded to the nearest hundredth? Select all that apply.
Lemur [1.5K]

A,B, and E all round to 7.91 when rounded to the nearest hundredth

5 0
3 years ago
Read 2 more answers
What is the value for ƒ(x) = 3 squard 2x+1 when x=1/2
MrRa [10]
The answer is 10 as you simply plug in x in the f(x) problem so 3*2(.5)+1=10
6 0
3 years ago
How do I solve this 2 step equationn?<br> y/6 - 7 = 4
romanna [79]

Answer: y= 66

Step-by-step explanation: Well first you would do +7 on both sides and then it would be Y/6=4+7, then you would multiply 6 on both sides which then you would have y=24+42 which simplified it would be y=66

3 0
3 years ago
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What is the area of a trapezoid that has bases measuring 19 centimeters and 23 centimeters, and a height of 14 centimeters? A =
Vsevolod [243]

Answer:

A = h(b+b) /2

A = 14(23+19) /2

A = 588/2

A = 294cm^2

7 0
3 years ago
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