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3 years ago

I neeed help answering this question...

Mathematics

1 answer:

Vitek1552 [10]3 years ago

6 0

Answer:

The answer is D. 27 3/7

Step-by-step explanation:

24= 7/8g

g = 24 *8/7

g = 192/7

g= 27 3/7

answer is D. 27 3/7

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Marissa wants to blend candy selling for $1.40 per pound with candy costing $2.90 per pound to get a mixture that costs her $2.0

fiasKO [112]

Answer:

30 lb of $1.80 candy

60 lb of $1.20 candy

Step-by-step explanation:

It generally works well to let a variable represent the quantity of the most-expensive contributor. Here, we can let x represent pounds of $1.80 candy.

Then 90-x will be pounds of $1.20 candy, and the total cost of the mix will be ...

1.80x + 1.20(90-x)

We want that to be the same value as 90 pounds of $1.40 per pound mix, so the equation is ...

1.80x + 1.20(90 -x) = 1.40(90)

This can be simplified and solved like any two-step linear equation.

0.60x + 108 = 126 . . . . . simplify

0.60x = 18 . . . . . . . . . . . .subtract 108

x = 30 . . . . . . . . . . . . . . . divide by 0.60. This is pounds of $1.80 candy

90-x = 60 . . . . . pounds of $1.20 candy

30 pounds of candy priced at $1.80 per pound, and 60 pounds of candy priced at $1.20 per pound should be used to make a mix that costs $1.40 per pound.

Mark me Brainliest please!

5 0

3 years ago

Read 2 more answers

Let f be a function such that f(x)=2x-4 is defined on the domain.2 is less than or equal to x and x is lss than or equal to 6. T

STALIN [3.7K]

F(x) = 2x - 4
f(2 ≤ x) = 2(2 ≤ x) - 4
f(x ≥ 2) = 2(x ≥ 2) - 4
f(x ≥ 2) = 2(x) ≥ 2(2) - 4
f(x ≥ 2) = 2x ≥ 4 - 4
f(x ≥ 2) = 2x ≥ 0
f(x ≥ 2) = x ≥ 0

f(x) = 2x - 4
f(x ≤ 6) = 2(x ≤ 6) - 4
f(x ≤ 6) = 2(x) ≤ 2(6) - 4
f(x ≤ 6) = 2x ≤ 12 - 4
f(x ≤ 6) = 2x ≤ 8
f(x ≤ 6) = x ≤ 4

8 0

3 years ago

Read 2 more answers

A company takes out an insurance policy to cover accidents that occur at its manufacturing plant. The probability that one or mo

yKpoI14uk [10]

Answer:

0.289792.

Step-by-step explanation:

If we define a month with one or more accident as "success"; and

A month with no accident as "failure" .

P(one or more accidents will occur during any given month)=0.60.
P(no accident will occur during any given month)=1-0.60=0.40

We want to calculate the probability that there will be at least four months in which no accidents occur before the fourth month in which at least one accident occurs.

in this case, let k=number of failures before the fourth success

Therefore, $k\geq 4$

k follows a negative binomial distribution.

Therefore, the probability is:

$P(k\geq 4)=1-P(k\leq 3)\\=1-\sum_{k=0}^{3}\left(\begin{array}{ccc}3+k\\k\end{array}\right)(0.60)^4(0.40)^k\\=1-(0.60)^4 \left[\left(\begin{array}{ccc}3\\0\end{array}\right)(0.40)^0+\left(\begin{array}{ccc}4\\1\end{array}\right)(0.40)^1+\left(\begin{array}{ccc}5\\2\end{array}\right)(0.40)^2+\left(\begin{array}{ccc}6\\3\end{array}\right)(0.40)^3\right]\\=1-(0.60)^4 \left[ 1+1.6+1.6+1.28\right]\\=1-(0.60)^4[5.48]\\=0.289792$

The required probability is 0.289792.

4 0

3 years ago

the axis of symmetry of a quadratic equation is x = –3. if one of the zeroes of the equation is 4, what is the other zero?

FinnZ [79.3K]

ANSWER

The other zero is

$x = - 10$

EXPLANATION

The axis of symmetry serves as the midpoint of the two zeroes.

We were given that the axis of symmetry of the quadratic equation is
$x = - 3$

We were also given that, one of the zeroes of the quadratic equation is
$x = 4$

Let the other zero of the quadratic equation be
$x = p$

,then, we apply the midpoint formula to find the value of
$p$

Since it is the x-values of the intercepts that gives the solution, we use only the x-value part of the midpoint formula which is given by,

$\frac{x_1 + x_2}{2} = axis \: of \: symmetry$

We substitute to obtain,

$\frac{p + 4}{2} = - 3$

We multiply through by 2 to get,

$p + 4 = - 6$

This implies that,

$p = - 6 - 4$

$p = - 10$

3 0

3 years ago

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Find the area of a square with a side of 20m

ch4aika [34]

The area of a square is: A = s^2

With side being s = 20m

A = 20^2m^2 = 400m^2

Hope that helps! :)

7 0

4 years ago

Read 2 more answers