Mathematics High School

what is y=5x
y=-x-6 using substition?

Answers

Answer 1

Answer:

3

Step-by-step explanation:

Related Questions

the difference of 10 and u?

Answers

Answer:

10-u

Step-by-step explanation:

the variable u can be any number, one that we don't know of.

The measures of the exterior angles of a heptagon are x°, 2x°, 3x°, 5x°, 7x°, 8x°, and 10x°. Solve for x.

Answers

Answer:

x = 10

Step-by-step explanation:

Exterior angles in any polygon always measure 360°

x + 2x + 3x + 5x + 7x + 8x + 10x = 360°

36x = 360

  x = 360/36

  x = 10

Answer:

80 dagreea

Step-by-step explanation:

Use the table from problem 1 to complete this problem.
Write an exponential decay function to represent the amount of medicine, M, left in the body after t, hours.
A.M(t)=(0.85)t

B.M(t)=400(0.85)t

C.M(t)=15(400)t

D.M(t)=400(0.15)t

Answers

Answer:

C

Step-by-step explanation:

M is t so 15x400 will b C

Given that
a = -1, b = -2 and c = -1
work out
2b — Зас

Answers

2(-2)-3(-1)(-1)
=-4-3(1)
=-7

Line B passes through the points (5, 10) and (0,0). What is the slope of the line
perpendicular to line B?
O 1
2
مسیر
1
2
o –
O2
None of the other answers are correct

Answers

Answer:

1/2 DID THE TEST

Step-by-step explanation:

YOU WILL DO YOU GOOD LUCK

Marie has 25 cards. Each card has a different symbol on it. Marie gives one card to Shelly and one card to Pauline. In how many different ways can Marie do this?

Answers

50 different ways. Do I have to list them? Could I also have brainliest?

Answer:

600

Step-by-step explanation:

find RT plz help im bad at this type of math

Answers

[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

According to above diagram :

RT = RS + ST

that is :

[tex]2x + 75 = 4x + 107 + 12[/tex]

[tex]2x - 4x = 119 - 75[/tex]

[tex] - 2x = 44[/tex]

[tex]x = - 22[/tex]

now, RT = 2x + 75

[tex](2 \times - 22) + 75[/tex]

[tex] - 44 + 75[/tex]

[tex]31[/tex]

hence , RT = 31 units

Answer:

RT = 31

Solve for x:

[tex]x=-22[/tex]

Step-by-step explanation:

==>> The sum of the line is RST

[tex]4x+107+12=RST[/tex]

==>> Since [tex]RST = 2x + 75[/tex], the equation will newly become [tex]4x+107+12=2x+75[/tex]

--

To find [tex]4x+107[/tex], we need to find the x.

==>> [tex]x=-22[/tex]

-- Lets check our work

==>> [tex]4(-22) = -88[/tex]

[tex]-88 + 107 = 19 [RS = 19][/tex]

[tex]RS + ST = 19 + 12 =[/tex] 31

--

[tex]2(-22) = -44[/tex]

[tex]-44 + 75 =[/tex] 31

31 = 31

If 5 (m-3)-4(m-2) =0 then m is?? Pls i need this ans really fast

Answers

Answer:

[tex]m=7[/tex]

Step-by-step explanation:

[tex]5\left(m-3\right)-4\left(m-2\right)=0[/tex]

[tex]5\left(m-3\right)-4\left(m-2\right)[/tex]

[tex]5m-15-4m+8[/tex]

[tex]m-7[/tex]

[tex]m-7+7=0+7[/tex]

[tex]m=7[/tex]

GOOD LUCK!! :)

5 1/6
I need this for tomorrow please help??

Answers

Approxmiately 5.167

It's 1.56 repeating but you can round it to 5.167 or 5.17

Can someone pls help me

Answers

Answer:

30

Step-by-step explanation:

We know that ,

p² + b² = h²

Substitute ,

24² + 18² = h² 576 + 324 = h² h² = 900 h = 30

Answer:

30

Step-by-step explanation:

did i with math

Ali and Khamis are solving 4a-5b=7 for b. Is either of them correct ? Explain.
PLS I'LL MARK YOU BRAINLIST DIRECTLY !!!

Answers

Ali is correct because you shouldn’t deliver the minus in the 5b number

Answer:

Ali is correct

Step-by-step explanation:

khamis is wrong

he got his negative numbers and positive numbers mixed up when taking it to the other side

Given s = 2.4 b = -7.2 t = 4.8 n = -9.6, evaluate this mathematical expression sbt - btn.
These are the answer options.
-248.832

248.832

-414.72

414.72

Answers

Answer:

Step-by-step explanation:

substituting in the values of s, b,t and n in the expression then,

(2.4 × -7.2 × 4.8) - (-7.2 × 4.8 × -9.6)

= - 82.944 -331.776

= -248.832

50 pts
A cube has a volume of 73 cubic centimeters. What is its surface area in
square centimeters?
Just type the number of the answer

Answers

Answer:

can't gfygdgdgyfdfzdfxdgguf

help me pls pls pls?

Answers

Answer: - 4d

Step-by-step explanation:

In the equation, there's an invisible 1 in front of the first d, so let's add that.

1d - 2d - 3d

Since all the terms in the above equations are like terms, we would focus on only subtracting. We would first subtract 2d from 1d.

- 1d - 3d

We then subtract 3d from - 1d. This would give us our answer.

- 4d

Given M || N, Find the value of X and Y

Answers

Answer:

Step-by-step explanation:

9x -1 +5x -15 = 180 supplementary angles

14x = 196

x = 14 sub into

5x -15= y -20 opposite angles

5(14) -15+20 =y

75 = y.

Evaluate each of the expressions below using the given value.

Answers

Answer:

23

Step-by-step explanation:

2a/3+13

Because a=15, we can substite a for 15...

2(15)/3+13

Solve...

30/3+13

10+13

23

The answer is 23.

Issebelles car holds 16 gallons of gas the fuel gauge shows that the tank is 3/4 full how many gallons of gas are in the tank

Answers

Answer:Do it yourself.

Step-by-step explanation:

Which is a solution for 4 x + 8 = 3 x + 14?

Answers

Answer:

x=6

Step-by-step explanation:

Step 1:

Subtract 3x from both sides:

4x + 8 - 3x = 3x + 14 - 3x

x + 8 = 14

Step 2:

Subtract 8 from both sides:

x + 8 - 8 = 14 - 8

x = 6

Find the value of x. Find the measures of the two supplementary angles

Answers

Answer:

x = 32

<1 = 102 degrees

<2 = 78 degrees

Step-by-step explanation:

3x + 6 + 2x + 14 = 180

5x + 20 = 180

5x = 180 - 20

x = 160/5

x = 32

3(32) + 6 = 102 degrees

180 - 102 = 78 degrees

Peter bought a pen for $120 and sold it to gain 20% on his cost price. How much did he gain?

Answers

Answer: He gained 24 dollars.

Step-by-step explanation:

What’s the missing number?

Answers

Answer:

missing number is 5

Step-by-step explanation:

idunno

Victoria needs material for her sewing project. She buys 4.50 yards of material at $4.30 per yard. What is the total cost of the material? You must show your work to receive all possible points. es )​

Answers

Answer:

Unit price= $4.30 create equation x= 4.50y

where x= total cost and y= $4.30

solve by multiplying $4.30x 4.50

x=$19.35

final answer: the total cost of the material was $19.35

Step-by-step explanation:

Solve for x
9x-6=5x-10

Answers

Answer:

-1

Step-by-step explanation:

9x-6=5x-10

Group like terms

9x-5x=-10+6

4x=-4

Divide both sides by 4

x=-1

Hope it helps.

Answer:

x=-1

Step-by-step explanation:

4x=-10+6

4x-10+6

4x=-4

x=-4÷4

(Find the length of the missing side in each triangle)​

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The relevant trig relations are summarized by the mnemonic SOH CAH TOA. This means ...

  Sin = Opposite/Hypotenuse

  Cos = Adjacent/Hypotenuse

  Tan = Opposite/Adjacent

So, for each triangle, determine the relationships of the given sides to the given angle: adjacent, opposite, or hypotenuse. Then write and solve the equation using one of the above templates.

An airplane has a wingspan of 20 feet and a length of 15 feet. If the model of this airplane has a wingspan of 8 inches, what is the length of this model?

Answers

Answer:

The length of the model is 6 inches.

Step-by-step explanation:

The wingspan of the airplane and length of the airplane are a ratio of 4:3

The model is also supposed to be 4:3.

4:3 x 2 = 8:6

Or, 20x12=240

240/8=30

15x12=180

180/30=6.

Answer:

6 inches

Step-by-step explanation:

equation in slope intercept form of the line that passes through the given point and is parallel to the graph of the given equation (-8,-7) y=-2+3​

Answers

Answer:

y = x + 1

Step-by-step explanation:

A bag of Doritos that normally costs $4.99 is on sale for 20% off. What is the sale price?

Answers

Answer 3.99

This is because 4.99x0.8=3.992
The answer is $3.99
because 20% is 0.8 as a multiplier so 4.99 X 0.8 = 3.99

Rob has budgeted $77 per month for his phone bill. Line access for calls and SMS texts costs $50, and each GB of data is an additional cost. After paying for access, he has enough money left for exactly 6 GB. He decides he wants to download 2 apps, and the apps cost $4.75 each. Rob also buys a ringtone that costs $2.50. How much more money, in dollars, does he need to pay for 4 GB?

Answers

Answer:

speed=distance/time

so..

8=distance/15.

120km= distance

Step-by-step explanation:

I believe you just preferred the answer but not how i got it..But even so. Wish you luck.

Which statement compares the two numbers correctly?
6x
+3x
+2x
100
six hundred twenty-nine thousandths
1000
06x
6x+3x) +2xਰ)
six hundred twenty-nine thousandths
1
O।
+2
= six hundred twenty-nine thousandths
100
six hundred twenty-nine thousandths < 6x
( 6 x+2+ਰ ) + 2 ਅਰਹਰ)
> 6 x+2+ਚ) • ਅਰ)
O six hundred twenty-nine thousandths > 6x

Answers

Answer:

1

Step-by-step explanation:


ASAP PLEASE!!!
Find the measure of the indicated angles.show work.complete sentence a. m<QRP = ____
b. m<QRX = ____​

Answers

The measure of m<QRX and m<QRP are 129 and 51 degrees respectively.

The sum of the interior angle of a triangle is 180 degrees, hence;

m<QPR + m<QRP + M<PQR = 180

Substitute the given parameters

49 + m<QRP + 80 = 180

m<QRP + 129 = 180

m<QRP = 180 - 129

m<QRP = 51 degrees

The sum of interior angle is equal to the exterior

m<QPR +  M<PQR = m<QRX

m<QRX = 49 + 80

m<QRX = 129 degrees

Hence the measure of m<QRX and m<QRP are 129 and 51 degrees respectively.

Learn more here: https://brainly.com/question/23327304

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