Solve the following system using substitution:
x - 4y = -1
-3x +8y = -2

Answers

Answer 1

Answer: ( 4, 5/4)

Step-by-step explanation: x = 4, y = 5/4


Related Questions

PLSS HELP IMMEDIATELY!!!! ILL MARK BRAINIEST IF U DONT LEAVE A LINK OR GUESS!!!! (and it’s not multiplying. i already tried that)

Answers

Answer:

120cm³

Step-by-step explanation:

The volume of a rectangular prism is the length multiplied by the width and height. You may not have multiplied correctly or multiplied all of the dimensions.

So, let's multiply our dimensions, 4cm × 6cm × 5 cm.

4 · 6 · 5 = 120

4 times 6 equals 24, then 24 times 5 is 120.

The volume of the box, then, is 120cm³. Remember to use the ³ (cubed) sign for volume.

Good luck :)

Jean-Luc is shopping for a gift for a friend. He will need to pay an additional 7% sales tax on anything he buys. He can spend a total of $40 on the gift, including the tax.

Part A: Suppose that a certain gift costs d dollars before the tax is added. Write an inequality to show that the total cost that Jean-Luc would spend on the item is no more than $40.

Part B: Solve the inequality for d. What is the price in dollars, before the tax is added, of the most expensive gift th

Answers

Answer:

i dont know

Step-by-step explanation:

This helped me so much thank you!!!!!!

Answers

Answer:

Your profile picture I love it

Please check my answer if you can. i got 600 with help from a brainly tutor but i don't think it is correct

Answers

I think I know this one.

Answer: V = 600 unit 2

Step-by-step explanation:

We have that

the volume of the rectangular pyramid is

V = (1/3) BH

where

B is the area of the rectangular face

H is the height of the pyramid

step 1

Find out B

B = (15)(10) unit 2

step 2

Find the volume

B = 150 unit 2

H = 12 unit

substitute

V = (1/3)(150)(12)

V = 600 unit 2

I hope this help you! :)

please help. will give brainliest! review the table of values for function p(x). what is lim (x -14) p(x), if it exists? (table and answer options pictured)

Answers

Answer:

DNE

Step-by-step explanation:

The the given table, we have;

As x approaches -14 from the left, at x = -14.001,  p(x) = 1.96

[tex]\lim \limits _{x \to -14^{-}} p(x) = 1.96[/tex]

As x approaches -14 from the right, at x = -13.999, p(x) = 1.97

[tex]\lim \limits _{x \to -14^{+}} p(x) = 1.97[/tex]

The value of p(x) when x = -14 is [tex]\lim \limits _{x \to -14} p(x)[/tex] = Undefined, or is not definable, therefore, p(x) Does Not Exist (DNE) when x = -14, and we have;

[tex]\lim \limits _{x \to -14} p(x)[/tex]  Does Not Exist, DNE.

Answer

It's C. 2 on edge.

Step-by-step explanation:

A peanut butter cookie recipe calls for 3 1/2 cups of flour to make 6 dozen cookies. How many cups of flour must be used to make 20

Answers

Complete Question

A peanut butter cookie recipe calls for 3 1/2 cups of flour to make 6 dozen cookies. How many cups of flour must be used to make 20 dozen?

Answer:

11 2/3 cups of flour

Step-by-step explanation:

From the above question:

6 dozen = 3 1/2 cups of flour

20 dozen = x

Cross Multiply

6 dozen × x = 20 dozen × 3 1/2 cups of flour

x = 20 dozen × 3 1/2 cups of flour/6 dozen

x = 20 × 7/2 /6

x = 140/2 ÷ 6

x = 140/2 × 1/6

x = 140/12 cups of flour

x = 11 8/12

= 11 2/3 cups of flour

Therefore, 11 2/3 cups of flour must be used to make 20 dozen.

im just going to type in all of the questions i need answers with tysm besties
-16 t+3.5

Answers

Answer:

on the x axis start from the point and draw it forward to -16(basically negative side) the draw a line upwards on the y-axis to the line inbetween 3 and 4 (this is on the y axis)

Step-by-step explanation:

Neeeeeeeeeed helppppppppppppp

Answers

D)
Because Mexico borders the US, but it does not border Canada. The conditional is false.

HELPPPPZ WORTH 30 POINTS AND BRAINLIEST

Answers

You don't need help my dude, you already have all of the right answer. Good job!!!

yuppp good jobbb!!!!

Which drawing shows lines that are PARALLEL?

Answers

Answer:

Step-by-step explanation:

I don’t see any pictures

In the figure shown A) 4
B)12
C)26
D)34
HELP ASAP WILL MAKE BRIANLIEST

Answers

Answer:

C

Step-by-step explanation:

x+8+2x+4=90

3x+12=90

3x=78

x=26

B! I had that question before. Hope you get it right :)

What is 2 units up and 0 to the right from (-4,2).

Answers

Answer:

Step-by-step explanation:

What is 2 units up and 0 to the right from (-4,2).

Answer:

(-4,4)

Step-by-step explanation:

A car's velocity, in mph, is recorded simultaneously by five different sensors, with the results: 45, 46, 46, 45, 48. Estimate a range of values in which the car's true velocity is likely to lie.

Answers

Answer: [tex]45-48\ \text{mph}[/tex]

Step-by-step explanation:

Given

Car velocity is given by [tex]45, 46, 46, 45, 48[/tex]

The range of a given set of data is given by

[tex]\text{Range=Max-min. value}[/tex]

Maximum velocity=48

Minimum velocity=45

The Range of velocity is

[tex]\Rightarrow 48-45=3[/tex]

Velocity lies between [tex]45-48\ \text{mph}[/tex]

From the set {7, 15, 18), which of the values can be substituted for c to make the
equation true.

90 - 2c = 60

A. 7
B. 18
C. none of these
D. 15

Answers

Answer:

D. 15

Step-by-step explanation:

90 - 30 = 60

2 • 15 = 30

the answer is 15

Which model represents 1/2 divided by 1/6?

Answers

Answer:

The answer I believe is :  D.

~  Hope this is correct, if I'm wrong I'm sorry, have a gr8 day/ night my friend!~

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

Фhelp me out please im so confused!
pleaSE?

Answers

Answer:

Step-by-step explanation:

I can't really tell from the image but it looks like the lines are parallel to each other

What was an effect of the Second Punic War?

ФCarthage remained a major trading center.
ФRome gained control over Sicily and Greece.
ФRome maintained control of Egypt and Spain.
ФCarthage became a major military rival to Rome.

please answer ASAP!!!!! I'm on a times unit test on edge please help ASAP!!!!!

Answers

Answer:

ithink its a or c

Step-by-step explanation:

not sure but dang what grade u in??

If my initial angle is 30 degrees, what is the negative coterminal angle?​

Answers

Answer:

Step-by-step explanation:

Coterminal angles are angles in standard position (angles with the initial side on the positive x -axis) that have a common terminal side. For example 30° , −330° and 390° are all coterminal.

Answer:

-330°

Step-by-step explanation:

Coterminal angles have a difference of 360° or multiples of 360°.

Negative coterminal angle with 30° is:

30° - 360° = -330°

You choose two different movies on a list at random. Out of 10 movies on the list, 6 are action movies. The first movie you choose is an action movie. What is the probability that the second movie is also an action movie? Write your answer as a fraction in simplest form.

Answers

Answer:

5/9

Step-by-step explanation:

You have 10 movies in total. You take 1 out of 6 action movies. Now you have 5 action movies left, so that means the probability is 5/9. It's 5/9 because you chose 1 action movie out of 10 movies in total, so that means there are 9 movies in total left.

Hopes this helps and makes sense!

Value of x (2x+43) (2x-3)

Answers

Answer:

-46

Step-by-step explanation:

2x+43=2x-3

We simplify the equation to the form, which is simple to understand

2x+43=2x-3

We move all terms containing x to the left and all other terms to the right.

+2x-2x=-3-43

We simplify left and right side of the equation.

0x=-46

0=-46

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

The answer to this problem is -46!
Hope this helps

What is the area of the polygon? Show your work! ​

Answers

Answer:

6+6=12 cm

4+4=8 cm

6+6= 12 cm

Add all together and it equals 32

Step-by-step explanation:

Answer:

64

Step-by-step explanation:

I LOVE DOING THESE

4x6=24

24x0.5=12

12x4=48

4x4=16

48+16=64

A block of sugar maple wood has a mass of 82.8 g and density of 0.69 ​g/cm3​. The block is a rectangular prism with a length of 5 cm and a width of 4 cm. What is the height of the block of sugar maple?

Answers

Answer:

6

Step-by-step explanation:

I believe if you fallow the mathematical process of d=m/v you will get 6

The height of the block of the sugar maple from the rectangular prism is 6 cm.

What is the volume of a rectangular prism?

The volume of a rectangular prism signifies the rectangular area enclosed by the prism. The equation used in calculating the formula for a rectangular prism can be expressed as:

V = length × width × height

From the parameters given:

mass of a sugar maple = 82.8 gThe density of the sugar maple = 0.69 g/cm³

[tex]\mathbf{Desity = \dfrac{mass}{volume}}[/tex]

[tex]\mathbf{volume = \dfrac{82.8 g }{0.69 \ g/cm^3}}[/tex]

volume = 120 cm³

Using the previous equation for calculating the volume of a rectangular prism, we have:

120 cm³ = 5 cm × 4 cm × height

120 cm³ = 20 cm² × height

height = 120 cm³/20 cm²

height = 6 cm

Learn more about a rectangular prism here:

https://brainly.com/question/128724

What is the area of the rectangle

Answers

Answer:

20

Step-by-step explanation:

Subtract the 2 from the width of 7, and then multiply the height by the width.

4x5=20

please help me do this question i cant seem to get it

Answers

Answer:

2 < x < 24

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is in the range

difference of 2 sides < x < sum of 2 sides , that is

13 - 11 < x < 13 + 11

2 < x < 24

Circle T is given below. ZUTV and ZXTW are congruent.

What is the measure of chord WX?
cm

Answers

Answer:

Step-by-step explanation:

First note that the triangles shown are isosceles triangles due to equality of two of their sides which is radius. So their baseline angles are equal

Since their middle angle are equal too, so their 3 angles are the same. It menas both triangles are similar.

However, we know two of three sides are equal, but the third should be also because of their similarity.

y+4 = 2y - 3

2y - y = 4 - 3

y = 4+3

y = 7

Therefore,

2y-3 = 2.7-3 = 14-3 = 11

Answer is 11 centimeters

Solve by Elimination:
x + 6y = 28
2x - 3y = -19

Answers

Answer:

x=-2

y=5

Step-by-step explanation:

x=28-6y

2x-3y=-19

(substitute the value of x)

2(28-6y)-3y=-19

y=5

x=28-6*5

x=-2

HELP ASAP!!draw dotted lines to show the parallelogram or rectangle that can be used to find the area of each triangle then find the area of each triangle​

Answers

Answer:

The rectangle that we could use to find the area of the yellow triangle, is a rectangle of length = 12cm and a width = 8 cm. (A image of this can be seen below).

Remember that:

The area of a rectangle of length L and width W is:

A = W*L

The area of a triangle rectangle with catheti a and b is:

A = a*b/2

Then the area of the rectangle of length = 12cm and width = 8cm is:

A = 12cm*8cm = 96 cm^2

Now we need to subtract twice the area of a triangle rectangle of catheti a = 8cm and  b = 6cm

(one cathetus is 6cm because is exactly half of the length of the rectangle)

The area of each one of these triangle rectangles is:

A' = 8cm*6cm/2 = 24cm^2

The area of the yellow triangle will be:

A = A - A' = 96cm^2 - 2*24cm^2 = 48cm^2

-0.85 - (-¼) + 0.4 + (-⅖) ?
what is the value of this expression?

Answers

Answer:

-0.6

Step-by-step explanation:

-0.85-(-1/4)+0.4+(-2/5)

=-0.85+0.25+0.4-0.4

=-0.6

Complete the sentence.

1. If 5/8 = m/n, then 10/16 =

2. If 7/p = 3/q, then 7+p/p =

3. If 9+m/m = 9/3, then 9/m =


PLS HELP. I NEED THIS DONE ASAP. ITS DUE TODAY :(​

Answers

Answer:

1. 2m/2n

2. 3/q + 1

3. 9/3 - 1

Step-by-step explanation:

i think this is the ans

Help plsss no links!!! What is the measure of X in degrees?

Answers

Answer:

40⁰

Step-by-step explanation:

As triangle is isosceles,

Z = Y = 70⁰

Thus X = 40⁰, to corporate angle sum property

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