can anyone help me?????

Answer:

X=1

Y=7

Step-by-step explanation:

Add both equations

(-2x) -4y +(-x) +y=-24

-3x-3y=-24. Take - 3 common factor

-3(x+y)=-24. Devide both sides by - 3

X+y=8

Adding the second equation with x+y=8

-x+y +x+y=14

2y=14

Y=7

In equation (x+y=8) substitute y with 7

X+7=8

X=1

Answer:

A = 90.25pi sq m

OR = 361pi/4 sq m

Step-by-step explanation:

If the circumference is 19pi, then the diameter is 19.

C = pi•d

19pi = pi•d

19 = d

If the diameter is 19, then the radius is 9.5.

The radius is always half of the diameter.

Then we can find the area.

A = pi•r^2

=pi•9.5^2

=90.25pi

We don't often see a decimal number coefficient for pi. So as an improper fraction, 90.25 which is 90 1/4 is

(90×4)+1 over 4

= 361/4

Area = (361/4)pi

=361pi/4 sq meters

Answer:

4x^2 + 24x = 45

Step-by-step explanation:

Answer:

4x² + 24x = 45

Step-by-step explanation: mark me brainliest!

”The total area of the frame and picture needed by the photographer = 80 in²The size of the picture that will be in the frame = 5 × 7 inchThe length of the picture = 7 inchesThe width of the picture = 5 inchesLet x represent the width of the frame, we get;

The width of the total area = The width of the picture + 2 ×

The width of the frameTherefore, the width of the total area = 5 + 2·x

The length of the total area =

The length of the picture + 2 ×

The width of the frame

Therefore, the length of the total area = 7 + 2·xWe get;

The total area = Total length × Total width 

The total area = (5 + 2·x) × (7 + 2·x) 

We are given that the total area = 80, therefore, by transitive property of equality,

we have;(5 + 2·x) × (7 + 2·x) = 8035 + 10·x + 14·x + 4·x² = 804·x² + 24·x = 80 - 35 = 45∴ 4·x² + 24·x = 45

Therefore, the quadratic equation that can be used in solving for the width is 4·x² + 24·x = 45.”

The student's work is wrong because she did not subtract the rate of depreciaton from 100%.

Depreciation is when the value of an asset declines with the passage of time.

FV = P (1 - r)^n

2500 x (1 - 0.20)^4 = 1024

To learn more about depreciation, please check: https://brainly.com/question/25552427

The CPI means consumer price index. The CPI is 151. Then the correct option is B.

The amount of something is expressed as if it is a part of the total which is a hundred. The ratio can be expressed as a fraction of 100. The word percent means per 100. It is represented by the symbol ‘%’.

A raincoat costs $79. 25 today. If a similar raincoat cost $52. 48 in 1983.

CPI is given as

[tex]\rm CPI = \dfrac{Price\ of\ raincoat\ today}{Price\ of\ raincoat\ in\ 1983}*100\\\\ CPI = \dfrac{79.25}{52.47}*100\\\\ CPI = 151[/tex]

More about the percentage link is given below.

https://brainly.com/question/8011401

Based on the calculations, the distance covered by Lea is equal to 336 kilometers.

Given the following data:

Mathematically, speed is given by this formula;

[tex]Speed = \frac{distance}{time}[/tex]

Next, we would calculate Hanna's speed by using the above formula:

[tex]Hanna's\; speed = \frac{252}{3}[/tex]

Hanna's speed = 84 km/h.

For Lea's distance:

[tex]Distance = speed \times time\\\\Distance = 84 \times 4[/tex]

Distance = 336 kilometers.

Read more on speed here: brainly.com/question/10545161

The default plan that makes the monthly payments for student federal loans is also known as the Standard Repayment Plan.

The Standard Repayment Plan is advisable as it keeps one on track to pay off loans in 10 years and minimizes total interest.

The standard repayment plan is the default students loan repayment plan.  It has fixed monthly payments for 10 years.

The main features of the standard repayment plan are:

Other available federal loan payment plans for students include:

Thus, the default plan that makes the monthly payments for student federal loans is also known as the Standard Repayment Plan and it is more advisable.

Learn more about Student Loans Repayment Plans at https://brainly.com/question/23752038 and https://brainly.com/question/16724065

Answer:

f i think andrew upright here's here's etext ueber yourself greatly they'd

Answer:

Step-by-step explanation:

We know that:

To find the equation of the line, we will need to use point slope form.

Point slope form formula: y - y₁ = m(x - x₁)

Solution:

Answer:

[tex]\sf y - 2 = 3(x -3)[/tex]

explanation:

[tex]\sf point \ slope \ form : \bold{y-y_{1}=m\left(x-x_{1}\right)}[/tex]

Here given :

slope, m : 3

coordinates : ( 3, 2 )

using the following given information:

Answer:115.5

Step-by-step explanation:

hope this helped!!

Answer:

115.5m[tex]{}^{2} [/tex]

Step-by-step explanation:

The volume of a prism = 1/2 a × c × h

according to the image a appears to be 3 m she appears to be 7m. and height appears to be 11m.

=> 1/2 a × c × h

=> 1/2 3m × 7m × 11m

multiply 3, 7 and 11

=> 1/2 231

=> 231/2

=> 115.5m[tex]{}^{2} [/tex]

done at all I hope this help please mark me brainest^_^

Answer:

15m cloth cost $42... is that the answer?

Answer:

30

Step-by-step explanation:

[tex]15\times10\div5[/tex]

Calculate

[tex]\frac{15\times10}{5}[/tex]

Cross out the common factor

[tex]3\times10[/tex]

Calculate the product or quotient

[tex]30[/tex]

I hope this helps you

:)

Answer:

5 5/8

Step-by-step explanation:

9 = 9/1

so 9 x 5/8 = 9/1 x 5/8

you could quickly make it 45/8 or make it 9x5/1x8

45/8 is improper so you have to see which multiple of 8 is the highest without exceeding the numerator

40 is the closest and it is 8x5 so 5 will be the integer.

there are 5 leftover so 5 is also the numerator

and the denominator stays 8 as there is no further simplifying

so, the answer is 5 5/8

Answer:

5 5/8

Step-by-step explanation:

9*5/8= 45/8

This is the Answer of course

Answer:

17/19

Step-by-step explanation:

Total number of cards - number of diamond card

Total number of cards

5+12+2

19

19

Answer: Carla: 5, Jim: 6, Peter: 9

Step-by-step explanation:

Let c be Carla's age, j be Jim's age, and p be Peter's age.

We can set up equations.

We already know that c = 5

j + 13 = p

p-1 = 2(c - 1 + j - 1)

Combine like terms:

p - 1 = 2(c + j - 2)

Distribute:

p - 1 = 2c + 2j - 4

p + 3 = 2c + 2j

We can plug in the value of 5 for c.

p + 3 = 10 + 2j

2j + 7 = p

We can plug in j + 13 for p.

2j + 7 = j + 13

Combine like terms:

j = 6

Therefore, p = 6 + 13 = 9

Answer:

x = 5°

Step-by-step explanation:

Linear pair: a pair of adjacent angles formed when two lines intersect. The two angles are always supplementary and so their measures sum to 180°.

If the side of a polygon is extended, the angle formed outside the polygon is the exterior angle.  The sum of the exterior angles of a polygon is 360°.

Sum of exterior angles:

⇒ 45° + 90° + 25° + 90° + x° + (180° - 140°) + (180° - 115°) = 360°

⇒ 355° + x° = 360°

⇒ x = 5°

Hi! I hope you're enjoying your day!

The best equation form is Slope-Intercept form (y=mx+b), where the letter m stands for the slope of the line and the letter b stands for the y-intercept of the line (where the graph touches the y-axis).

Why is Slope-Intercept the best form?

Because if you know y=mx+b, and you know what every variable means (m & b), then all you have to do is look at the equation and determine the y-intercept.

Example:

Suppose we have the following equation:

           [tex]\bold{y=0.7x-6}[/tex]

What is the y-intercept of this line?

Hint: Look at the equation.

That's right. The y-intercept is -6.

Hence, the best equation form is

[tex]\boxed{\boxed{\bold{Slope-Intercept\:Form}}}[/tex]

Hope everything is clear.

If you have any questions, please comment.

#LearningIsFun

The second system of linear inequalities has the point (3, -2) in its solution set.:

y > -2 and y ≤ (2/3)x - 4

Inequality is defined as mathematical statements that have a minimum of two terms containing variables or numbers that are not equal.

The system of linear inequalities is given as follows:

1. y<-3

y≥(2/3)x-4

2. y>-2

y≤(2/3)x-4

Now, checking the given point (3, -2) satisfies the linear inequalities:

Substituting the values x = 3 and y = -2 in the inequalities 1, we get:

-2 > -2 (which is false)

For the inequalities 2, we get:

-2 ≤ (2/3)(3) - 4 => -2 ≤ -2 (which is true)

Therefore, only the second system of linear inequalities has the point (3, -2) in its solution set.

Learn more about inequalities here:

brainly.com/question/20383699

#SPJ7

Answer:

You have to divide the diagram into 3 rectangles and add the cm

Step-by-step explanation:

suppose you have a table-like - diagram and you have to find the perimeter

first, you divide it into 3 rectangles like so.

second, you right 1st rectangle= 1cm,2cm

then continue with this method until done.

third, you add all the measurements and you get the answer

Answer:

The perimeter is 22cm

Step-by-step explanation:

So first we know that the top is 5cm, the two bottom parts are each 1cm, one of the insides is 2cm, and the right side is 4cm. So far that gives us a perimeter of 13cm. Now we need to find the unlabeled sides, so first (and it doesn't matter what side you start with) let's find the left side. Because the shape is symmetrical we can look across at the right side's measurement, and it will be the same measurement for the left side, 4cm. Next the right inside. Again, we can look to the left and we see that the left inside has a measurement of 2 cm, so the right inside will be the same, 2cm. Now for the bottom. We see that the top is 5cm, and if we were to fill in that empty space at the bottom, it would also be 5cm. We know that the two bottom pegs are each 1cm, so they're 2cm combined. If we were to fill in the rectangle, the bottom would equal 5cm. So 5-2 (for the 2cm of the bottom pegs), we get 3cm for that bottom unlabeled part. So if we add 13 to our new numbers 4, 3, and 2, we get a perimeter of 22cm.

Answer:

option d

Answer:

exponential form = 2.1^2

evaluation = 4.41

Step-by-step explanation:

it is multiplying 2.1 two times, therefore its 2.1^2

hence,

2.1 times 2.1 = 4.41

The answer would be 28.

Because m=5 and n=3 we would substitute those values in the corresponding equation. So our new equation would be 2(5) + 6(3). From here we follow the rules of PEMDS (Parentheses, Exponents, Multiplication, Division, Subtraction [or addition if present]). Now we multiply our values and then add. 2×5 is 10 and 6×3 is 18. 10+18=28, thus giving us the answer of 28.

Answer:

AC = 14.0

Step-by-step explanation:

We know that this is a non-right triangle, so we must use either the law of sines or law of cosines to find AC.

We can find the measure of <C using 180 - (118 + 22) = 40

Since we only know one side and all the angles, we can use the law of sines:  [tex]\frac{a}{sin A}=\frac{b}{sin B}=\frac{c}{sin C}[/tex]

[tex]\frac{24}{sin 40}=\frac{AC}{sin 22}[/tex]

Solving for AC gives us AC = 13.986826, which we can round to 14.0

Answer:

i think its a < -12 ?

Step-by-step explanation:

okay if memory serves me right, then i think its like this

a + 2 < - 10

you can make the umm < into = for now  ( or just ignore it)

a + 2 = -10

a = -12

now ummm i think we have to think whether we use < or >

if we use < then it will be less then -10

if we use > some points may be greater than -10

its < because even if you left < as it should be (not ignoring it) then it would still be facing <

[tex]y = 2-9(\frac{2}{3} ) = 2 - 3*2=2-6=-4[/tex]

Hope that helps!

Answer:

irregular 8-sided polygon or an irregular octagon

Step-by-step explanation:

The shape is an 8-sided polygon, also known as an octagon.

As the side lengths are not equal, it is called "irregular" (if the side lengths were equal then it would be called "regular").

So the shape is an irregular 8-sided polygon, or an irregular octagon.

Answer: 21.5

Step-by-step explanation:

Answer:

x = 21 ½

or

x = 21.5

Step-by-step explanation:

x = number of games.

6x = 6 games.

Since billy scores 129 points in these 6 games, that would mean we can set up this equation:

6x = 129.

Now divide both sides by 6 to get x alone.

x = 21 ½

or

x = 21.5

Answer:

B

Step-by-step explanation:

divide .80 by 7 which you get .11428571428

then you multiply .11428571428 by 14 and you'll get 1.6 :)