solving the systems of linear equations by substitution.

x+2y=6
5x+2y=18​

Answer:

-5n + 20

Step-by-step explanation:

n stands for the term number so if you want to find the 50th term all you have to do is substitute n with 50

first of all find the difference between each number in the sequence

the difference between 25 and 20 is -5

the difference between 20 and 15 is -5

the difference between 15 and 10 is -5

the difference between 10 and 5 is minis -5

because

25-5=20

20-5=15

15-5=10

10-5=5

now that you know the the difference you place the number in front of n like this

-5n

to find the rest all you need to do is use the difference between each number which is -5 and do it on the first number

so 25 - 5

this gives 20

so our nth term is -5n + 20

if you still don't get i can re-explain it to you

Answer:

False

Step-by-step explanation:

I got that they intercepted at (10.857,0.4286)

y=1/2x-5

y=-3x+33

Answer:

a = 22

Step-by-step explanation:

To find a, divide each side by 1/2, or multiply by the reciprocal:

1/2a = 11

a = 22

So, a = 22

Answer:

a = 22

because when isolate a you move 1/2 over with 11, and when you do that insted of multyplying 1/2 times a you divide 1/2 by 11

Answer:

61

Step-by-step explanation:

90 divided by 36 is 2.5 add 10 to the 90 then multiply 10 by 2.5 you get 25 then add 25 to 36 witch gives u 61.  90/36=2.5x10=25+36=61

/ is for division. Hope it helps.

Answer:

19 is the answer

Step-by-step explanation:

Answer:

Step-by-step explanation:

Plug the point (-1,20) into the equation.

20 = a|-1|+7

13 = a|-1|

13 = a ⋅ 1

a= 13

:::::

(1,20) is another point on the graph.

Answer:

im gonna guess your talking about the "your turn" part

Step-by-step explanation:

exponents first

2*2*2

10+8*2

10+16

26

Answer: 26

Step-by-step explanation:

First you do 2 to the power of three and that is 8.

Then 8 * 2 = 16

Finally 16 + 10 = 26

Please give brainliest

Answer:

Set 1    Yes

Set 2    No

Set 3 and Set 4   ???

Step-by-step explanation:

Use the converse of the Pythagorean theorem.   Square the lengths and see if 2 results add up to the third result.

So, Set 1

[tex]10^{2} = 100 \\26^{2} = 676\\24^{2} = 576[/tex]       100 + 576 = 676  Therefore we have a right triangle

Set 2

[tex]4^{2} = 16\\2^{2} = 4\\6^{2} = 36[/tex]

16 + 4 ≠  36   Therefore we do NOT have a right triangle

I will let you do Set 3 and Set 4.  OK?

set 1 is the answer ............................................................

Answer:

answer = 1242

Step-by-step explanation:

please follow me

Answer:

This spyware is detected 66% of times.

Step-by-step explanation:

We have these following percentages:

Seventy percent of the time the spyware arrives via the internet, and in this case is detected 60% of the time.

Thirty percent of the time the spyware arrives via e-mail, and in this case is detected 80% of the time.

What percentage of times is this spyware detected

0.7*0.6 + 0.3*0.8 = 0.66

This spyware is detected 66% of times.

Answer:

60

Step-by-step explanation:

write 120 like this: 120/2

Then just multiply the numerators.

Which gets you 120/2.

Then change it it to a mixed fraction which is 60.

Answer:

$78

Step-by-step explanation:

Can i be brain list

Answer:

Note that per 1/4 tsp of baking soda you need ample amount of acidity which is about 1 cup of buttermilk, 1 cup of brown sugar, 1 teaspoon of lemon juice, or 1 teaspoon of vinegar. Baking Without Baking Soda OR Baking Powder

Step-by-step explanation:

Answer:

Step-by-step explanation:

for the width

16-h=7

16-7=h

h=9

(g+4)=65

g=65-4

g=61degrees

The value of each variable in the parallelogram:

h = 9 and g = 61°.

A special form of quadrilateral called a parallelogram has both pairs of its opposite sides parallel and equal.

Given:

The shape is a parallelogram.

That means, the opposite sides are parallel and equal.

16 - h = 7

h = 16 -  7

h = 9

And opposite angles of a parallelogram are also equal.

g+4 = 65

g = 65 - 4

g = 61°

Therefore, the values are g = 61° and h = 7.

To learn more about the parallelogram;

https://brainly.com/question/29133107

#SPJ2

The process of solving a proportion is given below.

We are given that;

To show the process of solving a proportion

Now,

A proportion is an equation that states that two ratios are equal. For example, if we have 2 4 = 3 6[tex]{\\displaystyle {\\frac {2} {4}}= {\\frac {3} {6}}}[/tex] , then we have a proportion.

To solve a proportion, we need to find the value of a missing term that makes the equation true. There are different methods to solve a proportion, but one common method is cross-multiplication. Here are the steps to solve a proportion by cross-multiplication:

Multiply the numerator of one ratio by the denominator of the other ratio.

For example, if we have 2 4 = x 6

[tex]{\\displaystyle {\\frac {2} {4}}= {\\frac {x} {6}}}[/tex] , then we multiply 2 by 6 and get 12.

Multiply the denominator of the first ratio by the numerator of the second ratio.

For example, if we have 2 4 = x 6

[tex]{\\displaystyle {\\frac {2} {4}}= {\\frac {x} {6}}}[/tex] , then we multiply 4 by x and get 4x.

Set the two products equal to each other. For example,

if we have [tex]2 4 = x 6 {\\displaystyle {\\frac {2} {4}}= {\\frac {x} {6}}}[/tex], then we set 12 = 4x.

Solve for the missing term. For example, if we have 12 = 4x, then we divide both sides by 4 and get x = 3.

Check your answer by plugging it back into the original proportion.

For example, if we have x = 3, then we plug it back into 2 4 = x 6 [tex]{\\displaystyle {\\frac {2} {4}}= {\\frac {x} {6}}}[/tex] and get 2 4 = 3 6

[tex]{\\displaystyle {\\frac {2} {4}}= {\\frac {3} {6}}}[/tex] , which is true.

Therefore, by proportion answer will be given below.

More can be learned about proportions at;

brainly.com/question/24372153

#SPJ4

boo hoo let me play you a sad song on the world's smallest violin

Answer:

12+8x=84

Step-by-step explanation:

her flat fee is $12

$8 for any extra child

84 is the total she received which is the sum of 12 + 8×the extra number of children

Answer:

0.941192 = 94.1192% probability that all are shipped on time

Step-by-step explanation:

For each order, there are only two possible outcomes. Either they are shipped on time, or they are not. The probability of an order being shipped on time is independent of other orders. This means that we use the binomial probability distribution to solve this question.

Binomial probability distribution

The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

In which [tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

And p is the probability of X happening.

The probability that a customer's order is not shipped on time is 0.02.

So 1 - 0.02 = 0.98 probability of being shipped on time, which means that [tex]p = 0.02[/tex]

A particular customer places three orders

This means that [tex]n = 3[/tex]

(a) What is the probability that all are shipped on time

This is [tex]P(X = 3)[/tex].

[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]

[tex]P(X = 3) = C_{3,3}.(0.98)^{3}.(0.02)^{0} = 0.941192[/tex]

0.941192 = 94.1192% probability that all are shipped on time

Answer:

6 times greater

Step-by-step explanation:

hope this helped

Answer:

(75 × 12) + (3 × 580) = 2640

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

60%-> 12

100%->20

Answer:

20

Step-by-step explanation:

Answer:

the 20 +2

Step-by-step explanation:

Answer:

isosceles acute: option C

Answer:

180

Step-by-step explanation:

BECAUSE I ALREADY DID THIS AND I GOT IT RIGHT BECAUSE OF THE DEGREES THAT YIU NEED TO COUNT .

Answer:

4.5%

Step-by-step explanation:

We know she made 21/22. That means she miss 1 so subtract 21 from 22. We get 1. then divide 22 by 1. So the equation is

[tex] \frac{1}{22} [/tex]

which is about 0.454. Then multiply by 100 to get the percent which is 4.54. Round to nearest tenth and we get 4.5%