2 years ago

Question 9: emathintruction can you guys help me? .....

Mathematics

1 answer:

stira [4]2 years ago

4 0

Answer:

Choice #1) multiplied by 3

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Solve by using substitution. <br>y=3x <br>2x+ 5y = 34

viktelen [127]

Answer:

x= 3y

x=− 25y+17

4 0

2 years ago

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What action would you use to solve c-3=12

lana [24]

Answer:

c=15

Step-by-step explanation:

you would add 3 to 12 and end up with c=15

4 0

2 years ago

brian bought X apples and some oranges. Brian bought 3 more oranges than apples. find the toal number of fruit brian bought in t

Sophie [7]

<span>We can make an equation through that information.
X+3+3
</span>Brian bought 3 more of the oranges and apples, and that will get you
X+3+3
=
X+6

8 0

3 years ago

In how many arrangements can 3 boys and 4 girls stand in a row such that no two boys are together?

Sophie [7]

Answer: 1440

Step-by-step explanation:

To arrange 3 boys and 4 girls such that no two boys are together.

Since boys should be arranged between the girls.

So first arrange the girls.

Assume that the girls are placed, then there will be 5 spaces left for 3 boys.

The number of combinations to fill these places = $^5C_3=\dfrac{5!}{3!2!}=\dfrac{5\times4}{2}=10$

Also, 3 boys can arrange themselves in 3! =3 x 2 x 1 = 6 ways

4 girls can arrange themselves in 4! = 4x 3 x 2 x 1 = 24 ways

Then, the total number of arrangements = 10 x 6 x 24 = 1440

Hence, the required number of arrangements = 1440

5 0

2 years ago

I can't fail and no one has answered my previous questions so please help.

Afina-wow [57]

When you know your equation f(x) and they want you to find f(-4), it means that they want to know what f(x) is worth when x=-4 Therefore, you only need to plug in you x in the equation f(x)=5x-2 f(-4)=5(-4)-2 =-20-2 =-22 (B)

8 0

2 years ago