3 years ago

How do i evaluate 3X + y for X = 2 and y = -1

2 answers:

8 0

When you see a coefficient (the number next to the letter) next to a variable (the letter), you multiply. So 3*2=6 So you have: 6+y, or since y=-1, 6+(-)1= 5

Kazeer [188]3 years ago

4 0

3(2) + -1
6-1=5

6-1 is from the 1 being a negative already.

You might be interested in

How many are 10 x 10 ?

Hunter-Best [27]

Answer:

100

Step-by-step explanation:

Count to ten ten times and you'll get 100

4 0

3 years ago

In this equation where did the number three come from if anyone can explain to me be great because I am completely confused

lianna [129]

Answer:

The multiplication of 3

Step-by-step explanation:

when you see the 3(6y+1), it basically means multiply the 3 with the 6y and the 1. Therefore, it would be 18y+3

6 0

2 years ago

Read 2 more answers

Nia has number cards 2,3,8,9, and 5 . What are the different way bus can arrange the cards to show only even numbers with 2 in t

zhuklara [117]

There are 6 different ways:

23,598
23,958
25,398
25,938
29,538
29,358

8 0

3 years ago

Completely factor each of the given polynomials. If a polynomial cannot be factored, write "not factorable."

Art [367]

4x^2+23x+15=0
Δ=23^2-4*4*15=529-240=289

x1= (-23+17)/8=-6/8= -3/4
x2= (-23-17)/8=-5

4x^2+23x+15= 4(x+3/4)(x+5)=(4x+3)(x+5)

6 0

3 years ago

A recipe that serves 20 people uses ⅝ cup of water. How many cups of water are needed to serve 70 people?

Dimas [21]

Answer:

43.75 or simplified as 43 3/4 which is a mixed number

Step-by-step explanation:

How I did it is divide 5 and 8 and got 0.625 and I divided 70 by 0.625 and got 43.75 and I simplified it as a maxed number and got 43 3/4

5 0

3 years ago