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2 years ago

Four more than twice a numbera.2x+4b.4x+2c.6xd.2x > 4

Mathematics

1 answer:

makkiz [27]2 years ago

6 0

Answer:

a. 2x + 4

Step-by-step explanation:

Four more than twice a number

Let x = unknown number

Four more than twice of x

Twice of x can be written as 2x

Four more than 2x

Four more can be written as + 4

We get 2x + 4

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Can you please help me??

Bond [772]

5% = .05 = R
50% = .5 = O
100% = 1 = E
2% = 1/50 = V
55% = .55 = T
20% = 1/5 = N
1% = 1/100 = C

7 0

2 years ago

What is the instantaneous slope of y=-5\x at x=5

Sedbober [7]

$y=-5x^{-1}$
$\frac{dy}{dx}=\frac{5}{x^{2}}$
The instantaneous slope at x = 5 is 1/5.

The answer is 1/5.

8 0

3 years ago

Read 2 more answers

Find the difference quotient of f; that is, find f(x+h)-f(x) , h ≠ 0 for the following function

BigorU [14]

See56.7 cause it is the correct one to the 20th

4 0

2 years ago

Find the length of EF

Lisa [10]

Answer:

Step-by-step explanation:

1. First, we need to set up an equation to find the value of x and then the length of EF.

2. We know that DG is equal to 33, so we can add all the three sections it's cut into altogether to get 33. Therefore, we get an equation of: $3x - 28 + 3x - 30 + x = 33$

3. (Solving for x)

Step 1: Simplify both sides of the equation.

$3x - 28 + 3x - 30 + x = 33$
$(3x+3x+x) + (-28-30)=33$
$7x - 58 = 33$

Step 2: Add 58 to both sides.

$7x - 58 + 58 = 33 + 58$
$7x = 91$

Step 3: Divide both sides by 7.

$\frac{7x}{7} = \frac{91}{7}$
$x = 13$

4. Now that we know x is equal to 13, we can plug that value in for the expression 3x - 30.

$3(13)-30$
$39 - 30$
$9$

Therefore, the length of EF is 9.

7 0

3 years ago

At a cake sale, David bought 3 cakes and paid $10.50. At the same price, Lisa bought 4 cakes and 8 cookies and paid $14.80. What

Olin [163]

Price of a Cake

10.5/3= 3.5

1 Cake = $3 and 5 cents, 3.5

Price of a cookie

3.5*4=14

14 out of 14.80 was the cost of 4 cakes

Which leaves us with 0.8

8/0.8= 0.1

The Price of 1 cookie is 0.1

1 Cake: 3.5

1 Cookie: 0.1

7 0

3 years ago

Four more than twice a numbera.2x+4b.4x+2c.6xd.2x > 4​

Four more than twice a numbera.2x+4b.4x+2c.6xd.2x > 4