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2 years ago

Which equations may be used to determine the 3 consecutive integers whose sum is 127?

Mathematics

1 answer:

s344n2d4d5 [400]2 years ago

7 0

Answer:

a and b.

Step-by-step explanation:

I’ll explain by giving an example.

Let’s say that: a=3;b=4;c=5; => they all are consecutive -> their sum is 12.

=> if we use a) n=3 => 3*n+3=3*3+3=12 => correct.

b) n+(n+1)+(n+2)= 3+4+5=12=> correct.

c)n+2n+3n=3+6+9=18=>incorrect.

d)3n=3*3=9=>incorrect.

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Go Math Math Homework Lesson 8.4

kvasek [131]

Breanna exercises for 4 and 1/2 hours during the six days.

To find the answer, we have to multiply 3/4 by 6.

To do this, we change 6 to 6/1 and multiply straight across.

3/4 x 6/1 = 18/4 = 9/2

9/2 is the same as 4 and 1/2

3 0

3 years ago

Read 2 more answers

1) What is the length of the garden in this blueprint? 1”=4 feet 1/4

patriot [66]

Answer:

Area is the measure of the amount of surface covered by something. Area formulas for different shapes are sometimes different, but for the most part, area is calculated by multiplying length times width. This is used when calculating area of squares and rectangles. Once you have the number answer to the problem, you need to figure out the units. When calculating area, you will take the units given in the problem (feet, yards, etc) and square them, so your unit measure would be in square feet (ft.2) (or whatever measure they gave you).

Step-by-step explanation:

4 0

3 years ago

0 points 6a – 14a2 + 8a + 1 by a - 2

Mekhanik [1.2K]

Answer:

-14a -14- 27/a-2 hope this helps

Step-by-step explanation:

6 0

3 years ago

Find two numbers witha sum of 20 and a difference of 14

bixtya [17]

from the given equation

X+Y=20-->i

X-Y=14--->ii

add eq i and eq ii

2x=34

x=17

putting the value of x=17 in eq i

17+y=20

then y = 3 so the right answer is

17 and 3

6 0

3 years ago

I tried this few times can i get some help

mihalych1998 [28]

Answer:

Y=4 X= -6 or (-6,4)

Step-by-step explanation:

Okay so

3x+10y=22

-3x-8y=-14

basically, it's like one big equation. First, subtract 3x from -3x which cancels out and gives us 0
10y minus 8y gives us 2y.
22 minus 14 gives us 8

3x+10y=22

-3x-8y=-14

0+2y=8

Now that we have this, we can solve for y. in order to do this, we have to divide both sides by 2.

$\frac{2y}{2} = \frac{8}{2}$

From here we know that y=4 because the 2s cancel out leaving y and 8 divided by 2 is 4.

y= 4

Now we can fill in. You can pick any equation for this but I'm going to chose the first one.

3x+10y=22

we can fill in 4 for y

3x+10(4)=22

3x+40=22

Next we are going to subtract 40 on both sides.

3x+40=22

-40 -40

3x= -18

Next, we're going to divide -18 by 3.

$\frac{3x}{3} = \frac{ - 18}{3}$

The 3s cancel out leaving us x. -18 divided by 3 is -6.

x= -6

Hope this helped!! :)

6 0

3 years ago