3 years ago

2. The sum of two numbers is 30. Determine the two numbers if their product is a maximum.

Mathematics

1 answer:

SCORPION-xisa [38]3 years ago

5 0

Answer:

X+y=30

X=30-y

Z=yx

Z=y(30-y)

D/dy

z=30–2y

At max 30–2y=0

2y=30 Y=15

Therefore x=15

Step-by-step explanation:

You might be interested in

Give ur answer in standard form. <br>3 x 10^4 ÷6 x 10^-4<br>

Anni [7]

Answer:

5.0×10⁷

Step-by-step explanation:

(3÷6)×(10⁴÷10^-4)

(0.5)×(10⁸)

5.0×10^-1×10⁸

5.0×10⁷

7 0

2 years ago

Read 2 more answers

The temperature changed from 8 degrees to 3 degrees. How much did the temperature change by?

liberstina [14]

The answer should be 5 degrees. The temperature starts at 8 degrees and decreased to 3 degrees. Therefore you find the missing addend which in this case is 5 degrees. 8-3=5

4 0

2 years ago

Read 2 more answers

Rosa is building a guitar. The second fret is 33.641\,\text{mm}33.641mm33, point, 641, start text, m, m, end text from the first

poizon [28]

Answer:

...... uhhh

Step-by-step explanation:

5 0

3 years ago

A piece of cloth is 12 yards in length. if 3/4 of the cloth is used for bedsheet, how many yards of the cloth will be left?

larisa [96]

Answer:

9 yards

Step-by-step explanation:

multiply the length of the cloth by the length used for bedsheet

$12*\frac{3}{4}\\9 yards$

3 0

3 years ago

If Olivia has 68,79, and 74 for his 3 tests, what must he get on his 4th test in order to have an 80 average?

schepotkina [342]

The other person did not explain so I will:
(68+79+74)= 221/3 =73.7
80 x 4 = 320
320-221 = 99
He must get 99 on his 4th test.
Thanks

3 0

3 years ago