Systems of equations - can someone please help me

Systems Of Equations - Can Someone Please Help Me

Answers

Answer 1

Answer:

Step-by-step explanation:

The solution is the point where the lines intersect: (-2,-2)


Related Questions

1.Solve for x.
x /45 = 3
A) 15
B) 42
C) 135
D) 143
2.Given that the measurement is in centimeters, find the circumference of the circle to the nearest tenth. (Use 3.14 for π)
A) 9.4 cm
B) 18.8 cm
C) 37.7 cm
D) 56.6 cm
3.Evaluate this expression. −5.8 + (−2.5)
A) −3.3
B) −8.3
C) 3.3
D) 8.3
4.An XBOX 360 regularly sells for $399. It is on sale for 20% off. What is the sale price of the XBOX 360?
A) $78.80
B) $300.00
C) $319.20
D) $391.02
5. What is the volume of a cube with a side length of 5 cm?
A) 10 cm3
B) 15 cm3
C) 25 cm3
D) 125 cm3
6.Which equation represents a proportional relationship?
A) y = x /8
B) y = 8/ x
C) y = x/ 8 + 8
D) y = 8 /x + 8
7.Riley is placing the game board shown on his bedroom wall. What area of the wall will the game board cover? Use 3.14 for π and round to the nearest whole square foot.
A) 2 ft2
B) 3 ft2
C) 5 ft2
D) 6 ft2
8.Jennifer has a map of Yellowstone National Park. The scale on this map is 1 cm = 9.8 miles. Jennifer measured some distances on the map. What is the actual distance from Old Faithful to West Thumb?
A) 22.54 miles
B) 24.5 miles
C) 27.44 miles
D) 29.4 miles
9.What is 5 /8 x 4 /5 ?
A) 1/2
B) 1/3
C) 2/9
D) 3/8
Answer like
Answer 1._____________
Answer 2. ____________
Answer 3._____________
Answer 4._____________
Answer 5. ____________
Answer 6. ____________
Answer 7. ____________
Answer 8. _____________
Answer 9. _____________

Answers

Answer:

Answer 1. C

Answer 2. There's not enough information. You didn't give us the radius or diameter.

Answer 3. B

Answer 4. A

Answer 5. D

Answer 6. A

Answer 7. We can't see the gameboard. Sorry!

Answer 8. We can't see the map. Sorry!

Answer 9. A

Hope that helps! Sorry for the missings! I'm not sure for Answer 4.

Hope that helps!

Step-by-step explanation:

The value of x for equation x /45 = 3 is 135, value of expression −5.8 + (−2.5) is -8.3, the sale price is $319.20, volume of cube is 125 cubic centimeter, y = x /8 represents a proportional relationship.

What is Expression?

An expression is combination of variables, numbers and operators.

1. The given equation is x /45 = 3

Now value of x is 45×3

x=135

3. The expression is −5.8 + (−2.5)

−5.8 −2.5

The value of expression is -8.3

4.To find the sale price  after a 20% discount, we need to subtract 20% of the original price from the original price:

20% of $399 = (20/100) x $399 = $79.80

Sale price = $399 - $79.80 = $319.20

Therefore, the sale price is $319.20.

5.  The side length of cube is 5 cm

Volume = 5³

=125 cubic centimeter

6. y = 8/ x equation represents a proportional relationship

7. 5 ft² is area of the wall will the game board cover

9. The given expression is 5 /8 x 4 /5

20/40

1/2

Hence, the value of x for equation x /45 = 3 is 135, value of expression −5.8 + (−2.5) is -8.3, the sale price is $319.20, volume of cube is 125 cubic centimeter, y = x /8 represents a proportional relationship.

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Help with these questions pleaseee

Answers

Answer:

Exponential and exponential

Step-by-step explanation:

Answer:

f) -20 ..exponential

sory i don't know c

gl tho

Kiera randomly selected 35% of the eighth grade students in her school and asked them their favorite food in the cafeteria. Of the students surveyed, 60 chose chicken nuggets as their favorite food. Based on her school who would choose chicken nuggets as their favorite food served in the cafeteria?

Answers

Answer:

171

Step-by-step explanation:

Percentage randomly selected = 35%

Number of surveyed who chose chicken nugget = 60

To obtain the number who chose chicken nugget based on her school :

number who chose chicken nugget / Percentage randomly surveyed

60 ÷ 35%

60 ÷ 0.35

= 171.42

Approximately 171 students

Parallel lines L and M are intersected by line N. Answer the following questions based on the information given.
True/False
1. Angles 1 and 3 are vertical angles.
2. The value of angle 7 is 125 degrees.
3. Angles 1 and 6 are alternate interior angles. 4. Angles 3 and 5 are alternate interior angles. 5. Angles 4 and 8 are corresponding angles.
6. The value of angle 5 is 55 degrees.
7. Angles 1 and 7 are alternate exterior angles. 8. Angles 6 and 8 are corresponding angles.
9. Angles 1 and 6 are supplementary angles. 10. Angles 4 and 8 are supplementary angles

Answers

Answer:

1=True

2=false

3=False

4=True

5=False

6=False

7=True

8=False

9=true

Step-by-step explanation:

As Parallel lines L and M are intersected by line N, so given questions have following answers True, False, False, True, True, True, True, False, False, False.

What are parallel lines?

Parallel lines are coplanar straight lines that do not intersect at any point.

We have,

Parallel lines L and M ,

Transversal line N,

[tex]\angle 2 =125^0[/tex], [tex]\angle 5 =55^0[/tex]

Now,

Using the Parallel lines properties,

Angles [tex]1\ and\ 3[/tex] are vertical angles     -   True.The value of angle [tex]7\ is\ 125[/tex] degrees     -   False. Angles [tex]1\ and\ 6[/tex] are alternate interior angles     -   False.Angles [tex]3\ and\ 5[/tex] are alternate interior angles     -   True.Angles [tex]4\ and\ 8[/tex] are corresponding angles     -   True.The value of angle [tex]5\ is\ 55[/tex] degrees     -   True.Angles [tex]1\ and\ 7[/tex] are alternate exterior angles     -   True. Angles [tex]6\ and\ 8[/tex] are corresponding angles     -   False.Angles [tex]1\ and\ 6[/tex] are supplementary angles     -   False. Angles [tex]4\ and\ 8[/tex] are supplementary angles     -   False.

Hence, we can say that As Parallel lines L and M are intersected by line N, so given questions have following answers True, False, False, True, True, True, True, False, False, False.

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A relation contains the points (-5, -10), (-2, -4), (-1,-2), (4,8) and (5,10). is this a function?

Answers

Yes. each x-value has one distinct y-value as an output as opposed to have the points be (-5,-10) (-5,-7) (-2,-4) (-1, -2) (4,8) and (5,10) which wouldn’t be a function because x=-5 equals both -10 and -7

Alto and Brian both ordered the same size pizzas and Marco's Pizza;

however, they ordered different toppings. Marco's charges an additional

fee for toppings, but all toppings cost the same. Alto got pepperoni,

banana peppers, and black olives on his pizza for a cost of $15.74. Brian

order mushrooms and eggplant of his pizza and paid $14.49. Using this

information, write an equation for the cost of a pizza, C, as a function of

the toppings, t, ordered. *Hint: slope intercept form and you will need the

slope formula

Answers

Answer:

Cost of pizza = 1.25x + 11.99

Step-by-step explanation:

Since Toppings cost the same and the pizza orders are of same size :

Alto ordered for 3 Toppings + pizza = 15.74

Brian ordered for 2 toppings + pizza = 14.49

Hence the cost per topping and pizza could be found :

Cost per topping :

15.74 - 14.49 = 1.25

Hence, slope = 1.25

The intercept, c represents the cost of pizza alone :

Cost of pizza + 2 Toppings = 14.49

Cost per topping = 1.25

Cost of pizza = 14.49 - 2(1.25)

Cost of pizza = 14.49 - 2.50 = 11.99

Expressing in slope - intercept form :

y = mx + c

m = slope ; c = intercept

Cost of pizza = 1.25x + 11.99

i need help with this can any one help

Answers

Answer:

9. 6 cups

10. 66 in

11. 66 ft

12. 1320 ft

Hope that helps!

Step-by-step explanation:

9. 3 pt = 6 c

10. 5 1/2 ft = 66 in

11. 22 yd = 66 ft

12. 1/4 mi = 1320 ft

Hope this helped! :)

can someone please explain
how to do this

Answers

Answer:

93

Step-by-step explanation:

A + B +C = 180

75+51 + C =180

126 +C =180

C = 180-126 = 54

DCB : ACD  =  2:1

DCB = 2x

ACD = x

2x+x=54

3x = 54 ;  x = 54/3 = 18

DCB = 2x =  2 x 18 = 36

dcb + dbc + bdc = 180

51 + 36 + bdc = 180

87 + bdc = 180  ;  bdc = 180 - 87 = 93

I hope im right!!

Answer:

the answer is 93°

Step-by-step explanation:

As you know that in a triangle,

angle1+angle2+angle3 = 180°

hence,

angle ABC + angle BAC + angle DCB + angle ACD ( Angle DCB + angle ACD = angle BCA) = 180°

75°+51°+2x+1x (let the ratio be x) = 180°

126°+3x = 180°

3x = 54°

x = 18°

2x = 36° = angle DCB

In triangle DCB,

51°+36°+angle BCD = 180°

angle BCD = 180°- 87°

Hence, angle BCD = 93°

solve 5kx+6=7kx for x


Answers

The answer is D and it is the correct answer

14√(a2 - 10) - b = 0
If a > 0 and b = 1 in the equation above, what is the value of a?

(A) √11

(B) √14

(C) 4

(D) 8

Answers

The answer is (B) 14

The answer is B. √14

2.
What is the distance between the points (2,0) and (-6, 6) on the standard (x, y) coordinate plane?
F
27
G
2/13
H
8
10
K
2137

Answers

Answer:

10

Step-by-step explanation:

Use the distance formula.

[tex] d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2} [/tex]

We have x1 = 2; y1 = 0; x2 = -6; y2 = 6.

[tex] d = \sqrt{(-6 - 2)^2 + (6 - 0)^2} [/tex]

[tex] d = \sqrt{(-8)^2 + 6^2} [/tex]

[tex] d = \sqrt{64 + 36} [/tex]

[tex] d = \sqrt{100} [/tex]

[tex] d = 10 [/tex]

Answer: 10

(Brainliest for correct) You have decided to buy a Honda Accord LX, but you are concerned about the value of the car depreciating over time. You search the Internet and obtain the following information. The suggested retail price is $20,025. The depreciation per year is $1,385. What is the value of the car in dollars for 1 year of ownership, and how did you get that answer?

Answers

To find the value of the car after 1 year, subtract the amount it depreciates from the value of the car:

20,025 - 1,385 = 18,640

After 1 year the car is valued at $18,640

Answer:

$18640

Step-by-step explanation:

For year 1: Depreciated  value is $1385.

We will minus that amount from the actual worth of car i.e. $20,025

So,

= $20,025 - $1385

= $18640

Hope this helps you.

what is 83,74.21 written on expend form​

Answers

8000 + 300 + 70 + 4 + 0.2 + 0.01

List the prime factors of each of these numbers
a) 30
b) 24
c) 72
d) 100​

Answers

Answer:

30= 2×3×5

24= 2cubed×3

72= 2cubed×3squared

100=2squared×5squared

Answer:

Step-by-step explanation:

a) 30 = 5 * 6 = 5 * 2 * 3

  30 = 5 * 2 * 3

b) 24 = 4 * 6 = 2*2 * 2 * 3

24 = 2³ * 3

c) 72 = 8 * 9 = 2 *2 * 2 * 3 * 3

72 = 2³ * 3²

d) 100 = 10 * 10 = 2 * 5 * 2 * 5

100 = 2² * 5²

Show
that
[tex] \sqrt{5} [/tex]
is irrational​

Answers

Suppose that √5 = ab where ab is in reduced form. Thus 5 = a2b2 and 5b2 = a2. ... Since there is no integer that is both even and odd, we have reached a contradiction and √5 is irrational.

Micah pays 54$ for an item originally priced 60$. What percentage of the original price was his discount?

Answers

Answer: The percentage of the original price was his discount = 10%

Step-by-step explanation:

Given: original price = $60

Price after discount =  $54

Discount = Price after discount  - original price

= $ (60-54) = $6

The percentage of the original price was his discount = [tex]\dfrac{Discount}{Original\ price}\times100[/tex]

[tex]=\dfrac{6}{60}\times100\%\\\\=\dfrac{1}{10}\times100\%\\\\=10\%[/tex]

Hence, the percentage of the original price was his discount = 10%

75
25
Simplify fraction to a mixed number

Answers

Answer:

75/25= 3 wholes

Step-by-step explanation:

Because 25*3=75 so it would be 3 wholes

7/22 as a decimal rounded to nearest hundreths ​

Answers

Answer:

0.318= 0.32 hope this helps tell me if I'm wrong

Edit: 0.318. 1 is in the hundredths place so 8 would bump it up to 2 so it would be 0.32

The given fraction in decimal form as 0.32.

The given fraction is 7/22.

How to convert fraction to decimal?

The fraction bar separating the “part” and the “whole” represents division. This means that all fractions can be converted into decimals by dividing the numerator by the denominator.

Now, the given fraction can be converted to decimal as follows

7/22 = 0.3181

To the nearest hundredths is 0.3181 ≈ 0.32

Therefore, the given fraction in decimal form as 0.32.

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Triangle EFG is shown here. What is the image of point F after a rotation 270°
counterclockwise about the origin?
F(1.4)
G(03.3)
E (1,1)

Answers

Answer:

cxv

Step-by-step explanation:

xcv

AREA««« What is the area of the figure? 17. unt: 72 sq units 34 slunba​

Answers

Answer:

1,444

Step-by-step explanation:

you just multiple 72 by 34

Answer:

lol same person but it's 41,616

Step-by-step explanation:

u muipuly all the numbers  bc when u want to find the area u multiply

What is an x-intercept? What is a y-intercept?

Answers

Answer:

the X intercept is the horizontal line on the cordintae plane while the Y intercept is the vertical line :)

Step-by-step explanation:

Answer:

x -intercept- the point where the line cuts across the x-axis. the coordinate is always in the form (0, y)

y -intercept- the point where the line cuts across the y-axis. the coordinate is always in the form (x, 0)

Help me guys it's due this morning ​

Answers

Answer:

No

Step-by-step explanation:

Y is not more than 9

-1 over 5 times (-5) plus 8 is 9

$20 in the ratio 3:7

Answers

3:7 = 10 (3+7)
20/10 = 2 (divide total by the parts)

3 x 2 = 6
7 x 2 = 14

In the ratio 3:7, 20 will be shared by 6 and 14

Hope this helps
Leave a like and brainliest

What is X if
+X=
8
2
1
-6 -3
O
6
9
-6 -3
O
-2
-7
-4
1
O
-2 -7
-1
С O
7

Answers

Answer:

[tex] X =

\begin{bmatrix} - 4 & 1 \\ - 2 & - 7\end{bmatrix}[/tex]

Step-by-step explanation:

[tex] \begin{bmatrix} - 1 & - 2\\ 4 & 8\end{bmatrix} +X = \begin{bmatrix} - 5 & - 1\\ 2 & 1\end{bmatrix}[/tex]

[tex] X =

\begin{bmatrix} - 5 & - 1\\ 2 & 1\end{bmatrix}-\begin{bmatrix} - 1 & - 2\\ 4 & 8\end{bmatrix}[/tex]

[tex] X =

\begin{bmatrix} - 5-(-1) & - 1-(-2)\\ 2-4 & 1-8\end{bmatrix}[/tex]

[tex] X =

\begin{bmatrix} - 5+1 & - 1+2\\ 2-4 & 1-8\end{bmatrix}[/tex]

[tex] X =

\begin{bmatrix} - 4 & 1 \\ - 2 & - 7\end{bmatrix}[/tex]

A number is 12 more than the other. Find the numbers if their sum is 48​

Answers

Answer:

let one number be x and the other be x + 12

sum = 48

x + x + 12 = 48

2x + 12 = 48

2x = 48 - 12

2x = 36

x = 36 by 2

x = 18

therefore x = 18 and x+12= 18+12=30

so the answer is 18 and 30

Have a good day! ^^

Step-by-step explanation:

two complementary angle are in the ratio of 4:11 find the bigger angle​

Answers

Answer:

bigger angle is 66° ......

Factor out a negative common factor:
12 – 32x

Please help!!!

Answers

Divide both by 4. GCF-4
Answer: 3-8x

What are the coordinates of the x-intercept in the graph below?

Answers

Answer:

-2

Step-by-step explanation:

Mean :Find the mean of each set of data. 1. The table lists the weights of a random sample of 11 tents from an outdoor store. What is the mean weight?​

Answers

Answer:

The mean is 67

Step-by-step explanation:

Please I need an answer ASAP!!!!!!!!!!

Answers

measure of angle 1 is 62

Answer:

176

Step-by-step explanation: Teachers correction 119 minus 57

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