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Liono4ka [1.6K]
3 years ago
13

4(f-3)=20 I need help with this answer

Mathematics
2 answers:
Serjik [45]3 years ago
8 0

Answer:

f=5

Step-by-step explanation:

4(f-3)=20     distribute

4f-12=20      add

4f-12+12=20+12... 4f=32   divide

4f/4=20/4..... f=5

wlad13 [49]3 years ago
5 0

Answer:

F=8

Step-by-step explanation:

DIVIDE BOTH SIDES BY 4

4(f-3)=20     Dividing 4(f-3) by 4 cancels out the 4 leaving it f-3

                    Dividing 20 by 4 =5

f-3=5   move the constant to the right  (constant is the 5)

f=5+3   calculate

f=8

This is correct :)

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5.
Naddik [55]

Answer:

what a confusing question?

Step-by-step explanation:

im guessing 3 feet

8 0
2 years ago
You manage an ice cream factory that makes two flavors: Creamy Vanilla and Continental Mocha. Into each quart of Creamy Vanilla
Mars2501 [29]

Answer:

You should make 250 quarts of Creamy Vanilla and 200 of Continental Mocha to use up all the eggs and cream.

Step-by-step explanation:

This problem can be solved by a first order equation

I am going to call x the number of quarts of Creamy Vanilla and y the number of quarts of Continental Mocha.

The problem states that each quart of Creamy Vanilla uses 2 eggs and each quart of Continental Mocha uses 1 egg. There are 700 eggs in stock, so:

2x + y = 700.

The problem also states that each quart of Creamy Vanilla uses 3 cups of cream and that each quart of Continental Mocha uses 3 cups of cream. There are 1350 cups of cream in stock, so:

3x + 3y = 1350

Now we have to solve the following system of equations

1) 2x + y = 700

2) 3x + 3y = 1350

I am going to write y as function of x in 1) and replace it in 2)

y = 700 - 2x

3x + 3(700 - 2x) = 1350

3x + 2100 - 6x = 1350

-3x = -750 *(-1)

3x = 750

x = 250

You should make 250 quarts of Creamy Vanilla

Now, replace it in 1)

y = 700 - 2x

y = 700 - 2(250)

y = 700 - 500

y = 200.

You should make 200 quarts of Continental Mocha

7 0
3 years ago
Find the exact value by using a half-angle identity. . cos(5π/12).
vodka [1.7K]
<span>First of all in order to find the exact value by using a half angle identity we will do
cos(5π divided by 12)

=cos (5π divided by 6) divided by 2
= ± Under root[(1+cos (5π divided by 6) divided by 2]
Now we will consider + sign because 5π divided by 12 is in quadrant. where cos>0
so the solution is [(1- Under root 3 divided by 2) divided by 2] 
We will ignore the negative sign
I hope it helped.</span>
6 0
3 years ago
Solve the equation and check the solution. a + 2.4 = 7.8
Alika [10]
A+2.4=7.8
a=-5.4
5.4+2.4=7.8
8 0
2 years ago
Read 2 more answers
Multiply the following and COMBINE LIKE TERMS if possible.
Pachacha [2.7K]

Answer:

B.) x2+4x+4

Step-by-step explanation:

(x+2)2

(x+2)(x+2)

x2+2x+2x+4

x2+4x+4

8 0
3 years ago
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