Solve the system of equations x + y = 12 and x + 7y = -20 by combining the
equations.

Answers

Answer 1

Answer:

this will be 12

Step-by-step explanation:

since you said =12


Related Questions

The slope of the line is
5
1
.
Which statement best describes the meaning of the slope?

Answers

Answer:

Step-by-step explanation:

as you see in the graph, the correct choice is the first one

The answer is A

For every 1 tablespoon, there are 5 grams of protein!

Solve for h. V= 3.14r^2h

Answers

Answer:

v-42ryoggjihfjcfjbfj

5) –3x – 3y=3
-5x + 2 y = 19

Answers

Answer:

x=31

Step-by-step explanation:

-3x-3(19)=3-5x+2

2x-57=5

2x=62

x=31

Anwser is -X=31
Have a good day

Just solve number two

Answers

9514 1404 393

Answer:

  (3)  h < k

Step-by-step explanation:

In this form, h represents the amount by which the square root function is translated to the left (3), and k represents the amount of translation upward (4).

The appropriate relation is ...

  3 < 4

  h < k

Georgia needed some batteries for her flashlights. She bought 4 batteries for $6.80. At that rate, how much would 10 batteries cost?

A
$0.68

B
$17.00

C
$21.70

D
$27.20

Answers

Answer:

B $17.00

Step-by-step explanation:

8 batteries are 13.60

6.80 split in half to become 2 is 3.40 and then I added 13.60 plus 3.40 to get 17.00

Urgent please help!!

Answers

Answer:

The equation is 0.5x - 5= y

The average rainfall in inches in Miami from January to May is 1.61, 2.24, 2.99, 3.15, 5.35, and 9.68 while it is 2.24, 2.8, 3.03, 2.05, 2.09, and 6.69 during the same period in Tampa. Which city gets more rain and how much more?

Answers

Answer:

Miami gets 6.12 inches more rainfall.

Step-by-step explanation:

Given that the average rainfall (in inches) in Miami for 5 months are 1.61, 2.24, 2.99, 3.15, 5.35, and 9.68,

So, the total rainfall in Miami in 5 months,

R_M = 1.61 +2.24 +2.99 +3.15 +5.35 + 9.68 = 25.02 inches

and the average rainfall (in inches) in Tampa for 5 months are 2.24, 2.8, 3.03, 2.05, 2.09, and 6.69.

The total rainfall in Tampa in 5 months,

R_T = 2.24 +2.8 +3.03 + 2.05 + 2.09 + 6.69 = 18.9 inches.

The difference between the total rainfall in Miami and Tampa is 25.02-18.9= 6.12 inches.

The total rainfall in Miami is 25.02 inches while the total rainfall in Tampa in the same time period is 18.9 inches.

Therefore, Miami gets 6.12 inches more rainfall during the same time period.

can anyone help with this equation ?

Answers

Ahh good ole calculus. It’s been awhile. I think you plug in 9 for k and you should get 2(4)^9-1, which equals 2(4)^8. The only option would be your first.

1. Is this a function? (answer Yes, or No) 2. Find the Domain. 3. Find the Range ​

Answers

Answer:

Step-by-step explanation:

yes it is a function

Which is equivalent to V1,215' ?
0 243
O 1,2155
O 1,2153
o 243 *
2437

Answers

The equivalent answer is 1,2154

Kira studied data collected on the school basketball team for 1 season she noticed that a player on the team had 13 succesful free throws out of a total of 20

Answers

Answer:

Percent of Total number of successful throw = 65%

Step-by-step explanation:

Given:

Total number of successful throw = 13

Total number of throw = 20

Find:

Percent of Total number of successful throw

Computation:

Percent of Total number of successful throw = [Total number of successful throw / Total number of throw]100

Percent of Total number of successful throw = [13/20]100

Percent of Total number of successful throw = 65%

characterize the slope of the line in the graph

Answers

Answer:

Please check the attached graph.

Step-by-step explanation:

Note: You did not add the graph; so I am taking a sample graph to clear the concept anyway. Please check the referred graph attached below.

The slope on the graph basically tells us the time rate of change.

In other words, it describes the steepness of a straight line.

The slope can also be termed as:

Slope = rise / run

From the attached graph, taking twp points

(0, 3)(-1, 0)

Finding the slope between (0, 3) and (-1, 0) using the formula

[tex]\left(x_1,\:y_1\right)=\left(0,\:3\right),\:\left(x_2,\:y_2\right)=\left(-1,\:0\right)[/tex]

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]m=\frac{0-3}{-1-0}[/tex]

[tex]m=3[/tex]

Thus, the slope of the given line on the graph = m = 3

Out triangle-shaped pennants on the first day of school. If each pennant has a base of 5 inches and a height of 12 inches, what is the area of each pennant in square inches?

Answers

Answer:

Area of the penny = 30 square inches

Step-by-step explanation:

Out triangle-shaped pennants on the first day of school. If each pennant has a base of 5 inches and a height of 12 inches, what is the area of each pennant in square inches?

The pennant is triangular in shape. Hence:

Area of a Triangle = 1/2× Base × Height

Base of the pennant = 5 inches

Height = 12 inches

Area of the pennant = 1/2 × 5 inches × 12 inches

= 30 square inches

HELPPPPPPPP MEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE IT IS URGENT!!!!!!!!!!!!!!!!!!!!!!!!

Answers

18. B
So to get from 3 to 6 you multiply by two which you would also need to do to the price which is the same relationship because it is the correct answer whereas the 9 lbs you multiply by three and you would need to multiply the price by three as well and it is incorrect so it’s B
I’m not sure about the others though sorry

6+ 9х2 + 32 - 410 - 95 - 5
ОА. 10
ОВ. 9
Ос. 4
OD. 6

Answers

Answer:

D its really basic math you can also just do it in a calculator lel

Question 5 (2 points)
The graph shows the distance a car traveled, y, in x hours:

What is the rise-over-run value for the relationship represented in the graph?

1) 1/35
2)2/17
3) 35
4) 40

Answers

The rise-over-run relationship is the slope of the line. From the origin (0,0), to get to the next point, you would rise 35 units and run 1 unit.

35 / 1 = 35.

Ergo, the relationship is 35.

Answer:

The answer is 35

Step-by-step explanation: The other person who answered this got it correct and I took the test. :)

The coordinates of then vertical of parallelograms WXYZ are W(-2,3) , X(-1,0) , Y(5,2) and Z (4,5) the slope of
I’ll give brainliest

Answers

Answer:

The slope of WX and WY

Step-by-step explanation:

For us to have a rectangle, the angles at the edges equal 90

What this mean is that the width and the length are at 90 degrees

Hence, we can say that they are perpendicular to one another

Thus, we can calculate the slopes of both to drive home our point

Hence, by calculating the slopes of WX and WY, We can proof that we have a rectangle

Kent has a $20 gift certificate for the
pet store. He chooses 2 angelfish
that each cost $3.45 and 3 clownfish
that each cost $4.82.
If he uses his gift certificate, how
much money will he need to pay?

Answers

Answer:

= $1.36

Step-by-step explanation:

[ 2(3.45) + 3(4.82) ] - 20

= [ 6.9 + 14.46 ] - 20

= [ 21.36 ] - 20

= $1.36

What value of "x" makes the equation below true?
-15 + (-5x) = 0

Answers

Answer:

-3

Step-by-step explanation:

x is negative, we need x to be negative as well in order to get to 0. Therefore, x has to be -3.

A tin of paint, 6 cm high, holds a half a litre of paint. How much paint would go into a similar
tin which is 12 cm high?

Answers

Answer:

One liter

Step-by-step explanation:

The first tin is 6 cm, holds 1/2 liter.

12 is double 6, because 6 x 2 = 12.

What you do to one side you have to do to the other, 1/2 x 2 = 1.

One liter of paint.


What is the 10th term of the sequence 729, 243, 81, 27...? Enter any rational answer
in the form a/b or round to the nearest thousandth.

Help please.

Answers

Answer:

The 10th term of the sequence is:

[tex]a_{10}=\frac{1}{27}[/tex]

Step-by-step explanation:

Given the number

729, 243, 81, 27...

A geometric sequence has a constant ratio 'r' and is defined by

[tex]a_n=a_0\cdot r^{n-1}[/tex]

Computing the ratio of all the adjacent terms

[tex]\frac{243}{729}=\frac{1}{3},\:\quad \frac{81}{243}=\frac{1}{3},\:\quad \frac{27}{81}=\frac{1}{3}[/tex]

The ratio of all the adjacent terms is the same and equal to

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

also

[tex]a_1=729[/tex]

Therefore, the nth term is computed by:

[tex]a_n=729\left(\frac{1}{3}\right)^{n-1}[/tex]

Putting n = 10 to find the 10th term

[tex]a_{10}=729\left(\frac{1}{3}\right)^{10-1}[/tex]

     [tex]=729\cdot \frac{1}{3^9}[/tex]

      [tex]=\frac{1\cdot \:729}{3^9}[/tex]

      [tex]=\frac{729}{3^9}[/tex]

      [tex]=\frac{3^6}{3^9}[/tex]

      [tex]=\frac{1}{3^3}[/tex]

[tex]a_{10}=\frac{1}{27}[/tex]

Therefore, the 10th term of the sequence is:

[tex]a_{10}=\frac{1}{27}[/tex]

     


There are between 24 and 40 students in a class.
The ratio of boys to girls is 4:7
How many students are in the class?

Answers

Given:

There are between 24 and 40 students in a class.

The ratio of boys to girls is 4:7

To find:

The number of students in the class.

Solution:

Let the number of boys are girls are 4x and 7x respectively, where, x must be a positive integer because number of boys and girls is always a positive integer. Then, the total number of students is

[tex]\text{Total students}=4x+7x[/tex]

[tex]\text{Total students}=11x[/tex]

It means total number of students is multiply of 11.

Multiples of 11 are 11, 22, 33, 44, ... . So, multiples of 11 between 24 and 40 is 33.

Therefore, the total number of students in the class is 33.

Order each set of measures from greatest to least 1) 1.2 cm, 0.6 in, 0.031 m, 0.1 ft 2) 2 lb, 891 g, 1 kg, 0.02 T 3) 1 1/4 c, 0.4 L, 950 mL, 0.7 gal 4) 4.5 ft, 48 in., 1.3 m, 120 cm

Answers

Step-by-step explanation:

1) 1.2 cm, 0.6 in, 0.031 m, 0.1 ft

The relationship between the units is given as;

m > ft > in > cm

Upon converting the rest units to the lowest;

0.6 in = 1.524 cm

0.031 m = 3.1 cm

0.1 ft = 3.048 cm

The order is given as;

0.031 m > 0.1 ft > 0.6 in > 1.2 cm

2) 2 lb, 891 g, 1 kg, 0.02 T

2 lb = 907.185 g

1 kg = 1000 g

0.02 T = 20000 g

The order is given as;

0.02 T >  1 kg > 2 lb > 891 g

3) 1 1/4 c, 0.4 L, 950 mL, 0.7 gal

0.4 L = 400 mL

0.7 gal = 2649.79 mL

11/4 c = 650.6177 mL

The order is given as;

0.7 gal > 11/4 c > 950ml > 0.4 L

4) 4.5 ft, 48 in., 1.3 m, 120 cm

The relationship between the units is given as;

m > ft > in > cm

Upon converting the rest units to the lowest;

4.5 ft = 137.16 cm

48 in = 121.92 cm

1.3 m = 130 cm

The order is given as;

4.5 ft > 1.3 m > 48 in > 120 cm

Find f(3) if
f(x)=x^3 + 2x^2-x-1

Answers

Answer:

[tex] \underline{ \boxed{f(3) = 41}}[/tex]

Step-by-step explanation:

[tex] if \to \: f(x)=x^3 + 2x^2-x-1 \\ then \: f(3) = {3}^{3} + 2( {3)}^{2} - 3 - 1 \\ f(3) = 27 + 18 - 4 \\ f(3) = 41[/tex]

what are the coordinates of the circumcwnter of this triangle

Answers

Answer:

A: (-1,5) B: (-2,-1) C: (8,-1)

Select all of the rigid motions below.

reflection
translation
dilation
rotation
station

Answers

Reflection, translation, rotation

One batch makes 15 lemon bars and Josh ate 2. If Claire ate twice as many as him, how many lemon bars would be left from the batch? *

Answers

Answer:

There are 9 lemon bars left from the batch.

Step-by-step explanation:

One batch = 15 lemon bars

Josh: ate 2 lemon bars

[tex]15 - 2 = 13[/tex]

13 lemon bars remaining.

Claire: ate twice as many as Josh

Meaning: 2 × 2 = 4

[tex]13 - 4 = 9[/tex]

9 lemon bars remaining.

There are 9 lemon bars left from the batch.

In the first quadrant, you start at (7,4)
and move 4 units left

What point will you end on?

Answers

Answer:

7

Step-by-step explanation:

From O(7,4), when you move a point 4 units left, abscissa decreases by 4,i.e it becomes 3 and when you move a point 3 units up, ordinate increases by 3,i.e it becomes 7.

find the slope of the line y = -2x + 3​

Answers

Answer:

Step-by-step explanation:

PLZZZ HELP!!!! HURRY READ WHAT I SAY

Answers

Gucci Mannnnn got it like that

Answer:

omg

okay here:

"Gucci was founded in 1921 by Guccio Gucci in Florence, Tuscany. Under the direction of Aldo Gucci (son of Guccio), Gucci became a worldwide-known brand, an icon of the Italian Dolce Vita. Following family feuds during the 1980s, the Gucci family was entirely ousted from the capital of the company by 1993."

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