3 years ago

If (m,2m+1) is a solution of the equation 4x +2y=8 then the value of m

Mathematics

1 answer:

kirill115 [55]3 years ago

3 0

Answer:

the answer would be m = 0.75

Step-by-step explanation:

hope it helps:)

You might be interested in

How to unscramble this word nioarlta

Zielflug [23.3K]

Since this is in the Mathematics subject my best answer would be Rational.

6 0

3 years ago

The altitude of a triangle is increasing at a rate of 1 cm/min while the area of the triangle is increasing at a rate of 2 cm^2/

VARVARA [1.3K]

Answer:

The base is decreasing at 2 cm/min.

Step-by-step explanation:

The area (A) of a triangle is given by:

$A = \frac{1}{2}bh$ (1)

Where:

b: is the base

h: is the altitude = 10 cm

If we take the derivative of equation (1) as a function of time we have:

$\frac{dA}{dt} = \frac{1}{2}(\frac{db}{dt}h + \frac{dh}{dt}b)$

We can find the base by solving equation (1) for b:

$b = \frac{2A}{h} = \frac{2*120 cm^{2}}{10 cm} = 24 cm$

Now, having that dh/dt = 1 cm/min, dA/dt = 2 cm²/min we can find db/dt:

$2 cm^{2}/min = \frac{1}{2}(\frac{db}{dt}*10 cm + 1 cm/min*24 cm)$

$\frac{db}{dt} = \frac{2*2 cm^{2}/min - 1 cm/min*24 cm}{10 cm} = -2 cm/min$

Therefore, the base is decreasing at 2 cm/min.

I hope it helps you!

7 0

3 years ago

I’ll mark you brainliest!!!!! Which point is a solution to the inequality represented by this graph?

Amiraneli [1.4K]

Answer:

A is a solution because it is in the shaded area.

Step-by-step explanation:

5 0

3 years ago

Keiko sold less than three fourths of his sister's sales

sertanlavr [38]

The correct question is
<span>Keiko sold 3 less than three-fourths of his sister’s sales. Which expression represents what Keiko sold?

Let
S----------------> </span><span>the amount that Keiko's Sister sold
</span>K----------------> the amount that Keiko sold

we know that
Keiko sold 3 less than three-fourths of his sister’s sales
K=(3/4)*S-3

the answer is
K=(3/4)*S-3

6 0

3 years ago

You have three bags, each containing two marbles. Bag A contains two white marbles, Bag B contains two black marbles, and Bag C

Ket [755]

5/6 chance that the next marble will be a white one

3 0

4 years ago