All categories

2 years ago

What is the value of x in the equation 4(2x + 12) = 0? a −8 b −6 c 6 d 8

Mathematics

1 answer:

alex41 [277]2 years ago

5 0

Answer:

the answer is b:-6

Step-by-step explanation:

hoped I helped:)

You might be interested in

3 out of 4 students in Nayo's class have brought in permission slips for the next field trip. There are 32 students in the class

Marina86 [1]

8
3/4
x/32

Solve for x, = 24

Subtract 24 from 32
Also another way
4 x n = 32
n = 8
3x8 = 24
Subtract and same result

5 0

3 years ago

Read 2 more answers

Josie is training for a race. The ratio of

anzhelika [568]

The number of minutes that Josie will take is 80 minutes.

<u>Explanation:</u>

<u />

Explanation:

Ratio of the number of minutes to the number of miles = $\frac{24}{3}$

Number of miles = 10

Number of minutes = ?

Let x be the number of minutes

According to the question,

$\frac{24}{3} = \frac{x}{10} \\\\x = \frac{240}{3} \\\\x = 80$

Therefore, the number of minutes that Josie will take is 80 minutes.

6 0

2 years ago

An aircraft factory manufactures airplane engines. The unit cost C (the cost in dollars to make each airplane engine) depends on

butalik [34]

Answer:

90 engines must be made to minimize the unit cost.

Step-by-step explanation:

Vertex of a quadratic function:

Suppose we have a quadratic function in the following format:

$f(x) = ax^{2} + bx + c$

It's vertex is the point $(x_{v}, y_{v})$

In which

$x_{v} = -\frac{b}{2a}$

$y_{v} = -\frac{\Delta}{4a}$

Where

$\Delta = b^2-4ac$

If a>0, the minimum value of the function will happen for $x = x_v$

C(x)=x²-180x+20,482

This means that $a = 1, b = -180, c = 20482$

How many engines must be made to minimize the unit cost?

x value of the vertex. So

$x_{v} = -\frac{b}{2a} = -\frac{-180}{2(1)} = 90$

90 engines must be made to minimize the unit cost.

3 0

2 years ago

6=n-4<br> Ushdhsbdusvdj

kaheart [24]

Answer:

n=10

Step-by-step explanation:

6 = n-4

Add 4 to each side

6+4 = n-4+4

10 =n

4 0

3 years ago

Read 2 more answers

Nayeli wants to earn some extra money so she sells lemonade for $2 per cup and orange juice for $3 per cup. She sells a total of

scZoUnD [109]

Answer:

Step-by-step explanation:

let x represent lemonade and y represent orange juice

the total earning is $240. 2x+3y=240 allows you to find the number of each cup you need to sell to get $240.

the total number of cups sold is 100. x+y=100 gives you the other equation necessary to find the number of cups of each sold if you told a total of 100

6 0

2 years ago