Does anyone have the answer key to "Understand Systems of Linear Equations I-ready level H instruction?"

Answer:

see below

Step-by-step explanation:

We are given 2 equations:

[tex]2a+10b-8-2(4a-6)\\-6a+10b+c[/tex]

We are told to find c to make them equivalent, so we can make them equal to each other:

2a+10b-8-2(4a-6)=-6a+10b+c

To find c, we have to isolate it, here are the steps:

2a+10b-8-2(4a-6)=-6a+10b+c

subtract 10b from both sides

2a-8-2(4a-6)=-6a+c

rearrange left side

2a-2(4a-6)-8=-6a+c

distribute the positive 2 to the terms in parenthesis

2a-(8a-12)-8=-6a+c

distribute -1 to the terms in parenthesis

2a-8a+12-8=-6a+c

simplify

-6a+4=-6a+c

add -6a to both sides

4=c

Hope this helps! :)

Answer:

1/3 P

Step-by-step explanation:

If P/3 is equal to the length of one side, then 1/3 P is also equal to the length of one side, since 1/3 x P = P/3.

Answer: D. Parallelogram

Step-by-step explanation: I just put it in on a graphing calculator.

Answer:

D. Parallelogram

Step-by-step explanation:

Please refer to the attachment

Answer:

Step-by-step explanation: First you go up south which is 15 miles. then you go right down which is 75 miles. 15+75=90 miles

Answer:

b

Step-by-step explanation:

1/3×100

==100/3

=33.3%

Answer:

19 Platters

Step-by-step explanation:

453 ÷ 24 = 18.875

Rounded to the nearest whole number = 19

∴ It would take at least 19 platters

Proof:

19×24=456

Which is more that enough

Answer:

x=80

Step-by-step explanation:

a^2+b^2=c^2

48^2+64^2=x

2304+4096=x

6400=√x

√ to get x alone

80=x

2(6*9) + 2(6*5) + 2(5*9)

Surface Area = 258 units

*IG: whis.sama_ent

Answer:simply easy , A= -1/4 B= 0.5 C= 3/4 D -0.75

Step-by-step explanation:

Answer: 2:42

Step-by-step explanation:

8:17 - 5:35 = 2:42

Answer:

40

Step-by-step explanation:

70% of something is 28.

We'll use the variable x to hold our value. 70% can be written as 0.7. Rewriting our equation, we get:

0.7 * x = 28.

Lets divide 0.7 over. Our new equation is:

x = 28 / 0.7.

You get that x = 40.

70% of 40 = 28.

Answer:

The answer is 40

Step-by-step explanation:

Sorry I can't really give a good explaination

Hope this helps :)

PLS BRAINLIEST

Answer:

Distributive and associative

Step-by-step explanation:

In step 2 there is distributive property

From:  4 + 3(9+2)

To: 4+ (3x9) + (3x2)

In step 4 there is associative property.

From 4 + 27 + 6

To 4 + 6 + 27

Answer:

1. slope = 12

  y-intercept = 1/3

2.slope = 1/4

  y-intercept= -12

3.slope = 3

  y-intercept = 2

Step-by-step explanation:

When you get an equation for a graph, the co-efficient infront of the x (The number by the x) is the slope.

The equation for the y-intercept:

When solving for y-intercept, you replace y in the equation with 0 and make x the subject.

Example:
y = 12x - 4

0=12x - 4

-12x = -4

divide both sides by negative 12 since we want only positive x

[tex]\frac{-12x}{-12} =\frac{-4}{-12}[/tex]

x = [tex]\frac{1}{3}[/tex]

Therefore, the y-intercept = 1/3

Answer:

Hello

Yes, all rhombus are considered a parallelogram but every parallelogram is a rhombus is a false statement.

Step-by-step explanation:

So, Jan was correct at first but the second is incorrect.

Bye I hope this helps! (●’◡’●)

Answer:20.7 units²

Step-by-step explanation: volume of a rectangular prism is L×W×H

therefore 82.8=L×W×the height which is 4 units so if u do 4×L×W you get 4LW which is the volume

(4LW=82.8) now divide 82.8 by 4LW to get the value of LW. The value of LW is an area of one of the bases because area is L×W which is basically LW

hope you understand all the best

Answer:

1.25 miles

Step-by-step explanation: