Please help me. I’m stuck on it

Please Help Me. Im Stuck On It

Answers

Answer 1

Answer:

y = 6

x = -16

Step-by-step explanation:

[tex]\left \{ {{x + 4y = 8} \atop {3x + 8y = 0}} \right.[/tex]

[tex]x + 4y = 8\\ - 4y -4y\\x = 8 - 4y\\substitution\\3(8 - 4y) + 8y = 0\\ 24 - 4y = 0\\-24 -24\\-4y = -24\\\frac{-4x}{-4} = \frac{-24}{-4}\\y = 6 \\plug \\x = 8 - 4y\\x = 8 - 4(6)\\x = -16\\y = 6, x = -16[/tex]

Please Help Me. Im Stuck On It

Related Questions

Can someone help with this?

Answers

Answer:

4 < n < 130.

Step-by-step explanation:

n is a positive integer

n^100 > 2^200

2^2*100 = 2^200

4 ^100 = 2^200

So n > 4

(130n)^50 > n^100

130^50 * n^50 > n^100

130^50 > n^50

130 >n

so n < 130.

Answer answer please please

Answers

Answer: the answer is the second choice .

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Step-by-step explanation: as the second one is bigger than the first one .

Santana is plotting points on a graph.
The ratio of y-value to x-value is 3 to 4 for each point.

What will be the x-value of a point with a y-value of 12?
Evan’s family drove to a theme park for vacation.
They drove the same speed throughout the trip.

The first day, they drove 300 miles in 6 hours.
The second day, they drove 250 miles in 5 hours.
The third day, they arrived at the park after driving for 3 hours.

How many miles did they drive on the third day?

Answers

The x value to a Y value of 12 = 16
Reason: y/x. 3/4 = 12/?
3x4=12
4c4=16 your answer
—————
2nd question
300/6 hrs = 50 mph
250/5 hrs = 50 mph
So multiply 50 mph x 3 hours = 150 miles on 3rd day

Help me on this Math Problem! DUE TONIGHT!!

Answers

Answer:

see the attachment!

Expand and simplify (5x+2)(2x+3)

Answers

Answer:

10ˣ² +19ˣ + 6

Step-by-step explanation:

5ˣ(2x + 3) + 2 (2x + 3 )

10x² + 15x + 2(2x + 3 )

10x² + 15x + 4x + 6

= 10x² + 19x + 6

(5x+2)(2x+3)

5x(2x+3) + 2(2x+3)

10x^2 + 15x +2(2x +3)

10x^2 + 15x + 4x +6

Add like terms

15x + 4x= 19x

10x^2 +19x +6

b) Write 25 x 10^6in standard form.

Answers

Answer:25,000,000

Step-by-step explanation: add 6 zeroes behind the 25

A real estate agent earns 2.7% in commission on sales. If the agent had $3,827,820 in sales last year, approximately how much did the agent earn in commission?

A:103,351 dollars
B:10,335 dollars
C:1,033,551 dollars
D:1,034 dollars

Answers

the answer to this is A..............

Find its x-coordinate.

Answers

Answer:

2.5

Step-by-step explanation:

The formula to find the midpoint of a line segment: [tex](\frac{1}{2}x_{1} + \frac{1}{2}x_{2}, \frac{1}{2}y_{1} + \frac{1}{2}y_{2})[/tex]

Where:

[tex]x_{1} = -5\\x_{2} = 10\\y_{1} = 9\\y_{2} = 8[/tex]

1) Substitute the values into the midpoint formula.

[tex](\frac{1}{2}*-5 + \frac{1}{2}*10, \frac{1}{2}*9 + \frac{1}{2}*8)[/tex]

2) Solve it.

= [tex](-2.5 + 5, 4.5 + 4)[/tex]

= (2.5, 8.5)

Which rectangular prism has greater volume?
Some of the cubes might be hidden behind other cubes. Try to visualize all of the cubes.

Answers

Answer:

Blue

Step-by-step explanation:

Volume = lwh - Length x Width x Height

Blue = 4 x 3 x 4  = 48 cm³

pink = 2 x 5 x 4 = 40 cm³

(PLEASE HELP) Reflect (-5,1) in the x axis followed by the y axis.

Answers

Answer:

(-5, -1)

Step-by-step explanation:

URGENT HELP!!!
In a recent poll, 18% of seniors said they will attend the upcoming prom. Twenty seniors chosen at random were asked if they plan to attend the prom. What is the probability that at most 5 seniors will attend the prom?
Question 3 options:

0.136

0.149

0.758

0.864

Answers

Using the binomial distribution, it is found that there is a 0.864 = 86.4% probability that at most 5 seniors will attend the prom.

What is the binomial distribution formula?

The formula is:

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

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

The parameters are:

x is the number of successes.n is the number of trials.p is the probability of a success on a single trial.

In this problem, we have that:

18% of seniors said they will attend the upcoming prom, hence p = 0.18.Twenty seniors chosen at random were asked if they plan to attend the prom, hence n = 20.

The probability that at most 5 seniors will attend the prom is given by:

[tex]P(X \leq 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5)[/tex]

In which:

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

[tex]P(X = 0) = C_{20,0}.(0.18)^{0}.(0.82)^{20} = 0.0189[/tex]

[tex]P(X = 1) = C_{20,1}.(0.18)^{1}.(0.82)^{19} = 0.0829[/tex]

[tex]P(X = 2) = C_{20,2}.(0.18)^{2}.(0.82)^{18} = 0.1730[/tex]

[tex]P(X = 3) = C_{20,3}.(0.18)^{3}.(0.82)^{17} = 0.2278[/tex]

[tex]P(X = 4) = C_{20,4}.(0.18)^{4}.(0.82)^{16} = 0.2125[/tex]

[tex]P(X = 5) = C_{20,5}.(0.18)^{5}.(0.82)^{15} = 0.1493[/tex]

[tex]P(X \leq 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) = 0.0189 + 0.0829 + 0.1730 + 0.2278 + 0.2125 + 0.1493 = 0.864[/tex]

0.864 = 86.4% probability that at most 5 seniors will attend the prom.

More can be learned about the binomial distribution at https://brainly.com/question/24863377

#SPJ1

A spool with 18 feet of ribbon will be cut into 8-inch segments. how many 8-inch segments can be cut from the spool of ribbon?

Answers

Answer:

27

Step-by-step explanation:

First, we convert 18 ft to inches.

18 × 12 in. = 216 in.

Now we divide 18 ft written as 216 in. by 8 in.

216 in. / 8 in. = 27

Answer: 27

does someone mind helping me with this question? Thank you!

Answers

Answer:

I dont mind :D These were my favorite! They are actually really simple. Dont overthink it. It even gave you a hint!

It says a^2 + b^2 = c^2

We can substitute what we do have which is a = 10 and c = 15

10^2 + b^2 = 15^2

Now we square it

100 + b^2 = 225

Next, all we have to do is subtract the 100 from our answer so 225-100 which is 125, so b has to be 125!!! Because 125 + 100 is 225 :D

Step-by-step explanation:

Given:Hypotenuse ( c )= 15Side 1 ( a )= 10To find:

The length of "b" using Pythagoras Theorem.

Solution:

[tex] {a}^{2} + {b}^{2} = {c}^{2} [/tex]

[tex] {10}^{2} + {b}^{2} = {15}^{2} [/tex]

[tex]b = {15}^{2} - {10}^{2} [/tex]

[tex] {b}^{2} = 125[/tex]

[tex]b = \sqrt{125} [/tex]

[tex]b = 11.18033989[/tex]

[tex]b = 11.2 \: (nearest \: tenth)[/tex]

Therefore, the length of "b" is 11.2

pls help (it is for a frend)

Answers

Answer:

76.02%

Step-by-step explanation:

Took the test

Mark brainliest :)

NEED HELP ASAP

3(x+2)=18​

Answers

Answer:

x=4

Step-by-step explanation:

3x + 6 = 18

3x = 18 - 6 = 12

x = 4

3x+6=18
Subtract 6 on both sides
3x= 12
Divide by 3 both sides
Answer X= 4

The perimeter of a rectangle is 48 feet, and the length is 16 feet. what is the area?

Answers

A= L•W
A= 16•8
A=128ft
The area of this rectangle is 128ft

Answer: [tex]128ft^2[/tex]

Step-by-step explanation:

If the 16ft is the sum for both sides already means the first length is 8ft and also the second length is 8ft. then since there are 32 ft more left, you divide it by two since there were two widths left, the values of the two widths are 16ft each. so the sum of the two widths is 32ft. and that's the final answer.

[tex]Length=16[/tex]

[tex]Perimeter=48[/tex]

[tex]Using ~the ~formulas:[/tex]

[tex]A=wl[/tex]

[tex]P=2(l+w)[/tex]

[tex]Solving ~for~A:[/tex]

[tex]A=P\frac{l}{2} -l^2=48[/tex] × [tex]\frac{16}{2} -16^2=128ft^2[/tex]

Please help I don’t understand how to solve 13 and 14

Answers

Answer:

b.  4x + 22

Step-by-step explanation:

(x+5) + (x+5) + (x+6) + (x+6) = 4x + 22

the correct answer is b

4 of 10
As an estimation we are told 5 miles is 8
km.
Convert 100 km to miles.
miles

Answers

8km=5miles

1miles= 5/8=0.625mile

100km = 100x0.625=63.5 miles

-4(x-4)=-44
Please answer this with how you got the answer.

Answers

Answer: x = -15

Step-by-step explanation:

Think PEMDAS

First, we factor the parenthesis:

-4 (x-4) = -4(x) + -4(-4)

now we are left with -4x + 16 = -44

Next is to isolate the "x":

to do this, we must subtract 16 from -44

-44 - 16 = 60

now we have -4x = 60

Now we divide both sides by -4 in order to isolate "x"

dividing -4x/-4 = x

diving 60/-4 = -15

the answer is x= -15

find all the positive integers less than 1000 that are divisible by 2,3,5 and 7

Answers

210, 420, 630, 840
multiples of 2*3*5*7
210, 420,630, 840 multiply of 2*3*5*7

[tex]\sf Solve \;it \; with \; steps:-[/tex]
[tex]\bf 3\left(2x+2\right)=\:4x-10[/tex]

~ frεε

Answers

Answer:

[tex]\boxed{\sf \bold{x = -8}}[/tex]

Explanation:

3(2x+2)= 4x -10

apply distributive method: a(b+c) = ab + ac

3(2x) + 3(2) = 4x - 10

multiply

6x + 6 = 4x - 10

subtract both sides by 4x

6x + 6 - 4x = 4x - 10 -4x

simplify

2x + 6 = -10

subtract both sides by 6

2x + 6 -6 = -10 -6

simplify

2x = -16

divide both sides by 2

x = -8

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

[tex] \textbf{Let's solve :} [/tex]

[tex]\qquad \sf  \dashrightarrow \:3(2x + 2) = 4x - 10[/tex]

[tex]\qquad \sf  \dashrightarrow \:6x + 6 = 4x - 10[/tex]

[tex]\qquad \sf  \dashrightarrow \:6x - 4x = - 10 - 6[/tex]

[tex]\qquad \sf  \dashrightarrow \:2x = - 16[/tex]

[tex]\qquad \sf  \dashrightarrow \:x = - 16 \div 2[/tex]

[tex]\qquad \sf  \dashrightarrow \:x = - 8[/tex]

[tex] \textsf{Hence, value of x is -8} [/tex]

$3000 principal earning 5%, compounded semi-annually, after 20 years.

Answers

Answer:

$ 8055.19

Step-by-step explanation:

interest per period   .05 /2 = .025

periods = 20 * 2 = 40 periods

3000 ( 1+.025)^40 =

Two bags of grass seed cover 1,500 square feet of ground. If Mitch’s front yard is 1,850 square feet and his back yard is 5,635 square feet, how many bags of grass seed would he need to buy to completely cover his front and back yard?

Answers

Answer:

50

Step-by-step explanation:

Answer:

the answer is 50, it's actually very easy

What is the slope of a line parallel to the line whose equation is x+2y=-14x+2y=−14. Fully simplify your answer.

Answers

Answer:

x+2y=-14x+2y=-14

x+14x+2y-2y=-14

15x+0=-14

15x=-14

15x/15=-14/15=-7/5

x=7/5.

Step-by-step explanation:

Before you start calculating the following . You need to group like terms .Also when you are moving the numbers to the other side and it is negative you need to change it to positive . Also when you are changing it to the other side and it is positive you need to change it to negative.Thank you for the question

There are 8 pink beads and 22 purple beads on Myra's necklace. What is the ratio of the number of purple beads to the number of pink beads?



____ to _____

Answers

Answer:

22 to 8

Step-by-step explanation:

purple beads-> 22

pink beads-> 8

ratio of purple beads to pink beads-> 22:8

An airport in Death Valley is 60 feet below sea level, and an airplane is flying at 2000 feet above sea level.



How many feet must the plane descend in order to land?

A.2060
B.2000
C.1940
D.1880
E.1400

Answers

Answer:

A

Step-by-step explanation:

Sea level is defined as 0 ft and anything above or below is not sea level so

So . .

If the landing strip is 60 feet below sea level and the plane is flying 2000 feet above sea level just add them together

60 + 2000 =2060

According to attachment

B is sea levelA is planeC is airport

Distance

AB+AC2000+602060ft

9(-5x+8) help Plss …

Answers

Answer:

-45x + 72

Step-by-step explanation:

Q) 9(-5x + 8) = ?

→ 9(-5x + 8)

→ (-5x × 9) + (8 × 9)

→ -45x + 72

Thus, the answer is -45x + 72.

please help with the picture below

What value of X will make line 1 parallel to line 2

A. 32
B.58
C.72
D.148

Answers

Answer:

Step-by-step explanation:

Remark

The angles are marked as alternate interior angles. To be parallel, they must be equal. In other words x - 20  must equal 52. That's all you have to do. Just equate the 2 givens and solve.

Givens

x - 20 is one angle

52 is the other.

Solution

x - 20 = 52                   Add 20 to both sides.

x - 20 + 20 = 52 +20   Combine

x = 72

Answer: C

helpppppppp asap 89points

Answers

Answer:

the answer for the first is the second one

and the answer for the second is 9>6

Step-by-step explanation:

9 is greater than (>) six

and when plotted you can see that 9 is to the right of -6

hope i helped!

Answer:

Please find attached the completed number line.

9 is a positive number.  Start at zero and count 9 increments to the right.

-6 is a negative number.  Start at zero and count 6 increments to the left.

(a) 9 is located to the right of -6

(b) 9 > -6

write algebraic expressions to represent the following:
a) the sum of x and y b) the product of m and 7
c) the cost of 3 movie tickets at m dollars each d) 3 less than n, all divided by 4

Answers

Answer:

a) x + y

b) m x 7 or 7m

c) m x 3 or 3m

d) [tex]\frac{n - 3}{4}[/tex]

Step-by-step explanation:

a) the sum of x and y

- the sum most likely always means addition

b) the product of m and 7

- the product usually means multiplucation

c) the cost of 3 movie tickets at m dollars each

- so your getting 3 movie tickets at $m

the total would be m + m + m which is the same as mutiplying m by 3

d) 3 less than n, all divided by 4

- 3 less than n

less than usually means subtraction

than divided by 4

[tex]\rule{200}{2}\\\dashrightarrow\large\blue\textsf{\textbf{\underline{Given question:-}}}[/tex]

            write algebraic expressions to represent the following:

a) the sum of x and y b) the product of m and 7

c) the cost of 3 movie tickets at m dollars each d) 3 less than n, all divided by 4

[tex]\dashrightarrow\large\blue\textsf{\textbf{\underline{Answer and how to solve:-}}}[/tex]

First, "the sum of" indicates that we add.

Since we're asked to find the sum of x and y, we need to add them:-

x+y

Now, the "product of" indicates that we multiply.

So we multiply m times 7, which can be written as follows:-

7m

If we have 3 movie tickets, and each of them costs m dollars, then in order to find the cost of all 3 movie tickets, we need to find the product of the total number of tickets times the cost of one ticket:-

So we multiply 3 times m, or

3m

Now, "3 less than n" indicates that we subtract 3 from n; this expression is divided by 4, or:-

[tex]\bold{\dfrac{3-n}{4}}[/tex]

Good luck with your studies.

         [tex]\rule{200}{1}[/tex]

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