can someone please help me

solve the system by substitution

2x=y
5x+5y=-15
(?,?)

Answer:

B)Moving of small rocks and sediment

Step-by-step explanation:

I am doing FLVS and i got this right! <3

Answer:

Miguel has video games = 14

Beth has video games = 10

Step-by-step explanation:

Miguel has video games = m

Beth has video games = b

We make the equations:

m=b+4 (Miguel has  4 more video games than Beth)

m+b=24 (together they have a total of 24 video games)

So, the system of equations is:

[tex]m=b+4\\m+b=24[/tex]

Now, solving these system of equations to find values of m and b

Let:

[tex]m=b+4--eq(1)\\m+b=24--eq(2)[/tex]

Put value of m from equation 1 into equation 2

[tex]m+b=24\\b+4+b=24\\2b=24-4\\2b=20\\b=\frac{20}{2}\\b=10[/tex]

We get value of b: b=10

Now, finding value of m by putting value of b in equation 1

[tex]m=b+4\\m=10+4\\m=14[/tex]

So, We get value of m: m= 14

Therefore:

Miguel has video games = m = 14

Beth has video games = b = 10

Answer:

m+b=24

m=b+4

Step-by-step explanation:

on edg

Answer:

Sorry but i don't understand the question :(

Answer:

-3

-2

-6

-4

-5

-1

Step-by-step explanation:

Answer:

D. Subtract 2 from 4

Step-by-step explanation:

Given:

Jada traveled 135 miles in 3 hours.

Andre traveled 228 miles in 6 hours. Both Jada and Andre traveled at a constant speed.

To find:

How far did Jada travel in 1 hour?

Solution:

We have,

Distance traveled by Jada in 3 hours = 135 miles

Then,

Distance traveled by Jada in 1 hour = [tex]\dfrac{135}{3}[/tex] miles

                                                           = 45 miles

Therefore, Jada travel 45 miles in 1 hour.

Answer:

5250 bulbs are functional green bulbs

Step-by-step explanation:

find out how much 1/5 of 15000 is

15000/5=3000

find out how many are orange

3/5=1/5+1/5+1/5         3000*3=9000

of the 15000 bulbs 9000 are orange the rest are green find the amount that is left over

15000-9000=6000 bulbs are green

find out what 1/8 of the green bulbs is

6000/8=750

1/8 or 750 green bulbs are not working

find out how many bulbs are functional

6000-750=5250 bulbs are functional green bulbs

Answer:

What is the sum of the exterior angles in a regular 15-gon?

The sum of the exterior angles in any convex polygon, including a regular 15-gon, is 360∘.

Step-by-step explanation:

thank me later

mark me as brainliest please

Answer:

5 exterior angles.

Step-by-step explanation: since they all have to add to 360 you can divide 360/5 = 72. You can also check by adding one interior angle plus 72 and checking if you get 180.

Answer:

Y intercept: (0,7)

X intercept: (-7/4, 0)

Step-by-step explanation:

Step-by-step explanation:

finding y intercept:(x=0)

y=4x +7

=4(0)+7

y=7

finding x intercept:(y=0)

y=4x+7

0=4x+7

-7=4x

x=-7÷4

Answer:

x=-5

Step-by-step explanation:

x+2=-3

x+2-2=-3-2

x=-5

im in algebra two so you can trust my answer. happy holidays and stay safe!

Answer:

i think two months im not sure tho

Step-by-step explanation:

Answer:

 b)

The point is (-1,5) and (0,0) also satisfies the given inequalities

The solution of the given inequalities

(x, y) = (4 , -2 )

Step-by-step explanation:

Step(i):-

Given system of equations are

3x + 2y < 8

-5x - 9y > -2

The solution of the given equations are

3x + 2y = 8   multiply '5'

-5x - 9y = -2 multiply '3'

       15 x + 10 y = 40  ...(i)

       -15x - 27 y = -6.....(ii)

Adding (i) and (ii) , we get

          - 17 y = 34

                y = -2

Substitute y = -2 in equation 3x + 2y =8

          3x - 4 =8

             3x = 12

               x =4

The solution of the given system of inequalities

(x, y) = (4 , -2 )

Step(ii):-

                   3x + 2y < 8

                  -5x - 9y > -2

The point is (-1,5)

                 -3 + 10 < 8

                    7 < 8

                5 - 45 > -2

                   -40 > -2

The point (0,0) also satisfies the given inequalities

Final answer :-

The point is (-1,5) and (0,0) also satisfies the given inequalities

Answer:

y = 3x - 7

General Formulas and Concepts:

Pre-Algebra

Algebra I

Standard Form: Ax + By = C

Slope-Intercept Form: y = mx + b

Step-by-step explanation:

Step 1: Define

Standard Form:   3x - y = 7

Step 2: Rewrite

Find slope-intercept form

Answer:

y = 3x + 7

Step-by-step explanation:

subtract 3x from both sides

multiply both sides by (-1) to get positive numbers

Answer:

Fourth choice, 19/30

Step-by-step explanation:

Add 38 and 22 together, it's 60

Out of 60 times, he flipped heads 38 times, so it's 38/60

Simplify 38/60 with 2, 19/30

Step-by-step explanation:

|| represents the absolute value function:

|x| = x when x >= 0,

|x| = -x when x < 0.

Therefore (-8) * |2| = (-8) * 2 = -16. (A)

Answer:

Step-by-step explanation:

In step 1: mode will be solved so |2| will be absolute positive value of 2  which is 2

Step 2: multiply by -8  which is -16

So Answer is (A) -16

Answer:

False

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Algebra I

Step-by-step explanation:

Step 1: Define Systems

y = 3x - 3

y = -4x + 4

Step 2: Solve for x

Substitution

Here we see that our x-value would equal 1.

∴ (-3, 0) is NOT a solution to the systems.

Answer:

$698

Step-by-step explanation:

Given that :

Principal = $5600

Rate = 4.75%

Time = 3 years

Simple interest = principal * rate * time

Simple interest = $5600 * 0.0475 * 3

simple interest = $798

Answer:

The answer is $3.31.

Step-by-step explanation: Just divide 6 by 19.68

Answer: 19 squared

he Step-by-step explanation: Because you have to add them then just multiply. Dont listen to my answer-

Answer:

e

Step-by-step explanation:

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Answer:

D

Step-by-step explanation:

Answer:

D. 6 cm

Step-by-step explanation:

since the scale factor from KLMNP to QRSTU is 2/3, just multiply LM by 2/3

therefore, your answer is 6 cm

hope this helps!!

Answer:

The answer is C

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

both pair of opposite sides are parallelogram, which is the definition of a parallelogram

Answer:

0.33

Step-by-step explanation:

Answer:

I'm pretty sure it would be $131.56

Step-by-step explanation:

I think it will be $131.56 because if you take an multiply the 2.99 times  88 the number of muffins that were sold that day, then you would get $263.12. If you donated 1/2 of the profits made, then you would take 263.12 and divide it by 2 because half of it would be divided by 2. So therefore you would get $131.56! Hope this helps!

Correct me if I'm wrong!

Answer:

A

Step-by-step explanation:

Answer:

t0he answer to this question is 1/4

Step-by-step explanation:

Answer: B. 24 ft

Step by step explanation: I know that the cabbage's percent is 15%, so then you have to take 15% of 160 and that is 24 :D

Hope this helps!

Answer:

3 oz.

Step-by-step explanation:

how many 1/2 are there in 2?

there are 4.

this means we divide 12 (oz. of choc chips) and 4

when we divide them, we get 3oz.

thats why you need 3oz. chocolate chips for 1/2 of a batch

hope this helps!