Mathematics High School

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

Answers

Answer 1

Answer:

3

Step-by-step explanation:

Related Questions

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

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.

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:

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

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:

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:

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

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

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:

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

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

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:

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:

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

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

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.

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

What’s the missing number?

Answers

Answer:

missing number is 5

Step-by-step explanation:

idunno

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.

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

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

Answers

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

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 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.

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:

(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.

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

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:


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

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!! :)

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