Help with substitution please.

Help With Substitution Please.

Answers

Answer 1
(5,15)

x=5, y=15

Tell me if you need the work

Related Questions

please answer!!
options:
a) 2
b) -2
c) -4
d) 0

Answers

the correct answer would be -2 i’m pretty sure because that is where they cordanate

A dinner plate is in the shaper of an isosceles right triangle. The leg length is 13 inches. What is the length of the perimeter of the hypotenuse, round to the nearest tenth?

Answers

Answer: 18.4 inches

Step-by-step explanation:

A gift shop wants to make gift baskets for its regular customers. There are 24 bottles of shampoo, 36 tubes of hand lotion, and 60 bars of soap. The same number of each item should be in each basket. What is the greatest number of baskets that can be made.

Answers

Answer:

12 baskets

Step-by-step explanation:

We solve this question using the Greatest Common Factor method.

We are told that:

There are

24 bottles of shampoo

36 tubes of hand lotion

60 bars of soap.

The same number of each item should be in each basket.

The greatest number of baskets is calculated as follows:

Step 1

We find the factors of 24, 36, 60

The factors of 24 are: 1, 2, 3, 4, 6, 8, 12, 24

The factors of 36 are: 1, 2, 3, 4, 6, 9, 12, 18, 36

The factors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

Step 2

We Identify the number that is greatest and common amongst 24, 36 and 60

This is 12.

Then the greatest common factor is 12

Therefore, the greatest number of baskets is 12 baskets

Find the volume of the cylinder. Either enter an exact answer in terms of or use 3.14 for T. 2 -3 units​

Answers

solution -V=πr2h=π·32·2≈56.54867

answer-V≈56.55

Pls help me with this questions

Answers

Answer:

1. First, we need to find the area of the rectangle, then subtract the non-shaded region from the total of the rectangle's area.

Area of rectangle formula;

A = LW

Where 'L' represents the length, and 'W' represents the width.

Plug in your values:

A = LW

A = 8(13)

A = 104, now that we've found the area of this total rectangle, we need to find the area of the triangle and subtract that from the area of the rectangle.

Formula for area of triangle;

A = BH x 1/2

Where 'B' represents the base, and 'H' represents the height and 1/2 is just 1/2.

But, if we look at this triangle we can see that we don't have the base.

So what we have to do is subtract the given side lengths beside it (which you add up) from the total width.

Given length beside unknown base: 4 and 4

So, (4 + 4) = 8, and the total width is 13.

So: 13 - 8 = 5, 5 is our base.

Now we plug these into our formula:

A = BH x 1/2

A = 5(6) x 1/2

A = 30 x 1/2

A = 30/2, which equals to 15.

Now we subtract the non shaded region(triangle) from the shaded region(total area of rectangle).

104 - 15 = 89 meters.

2. In this figure, we find the area of the whole triangle, not considering the small empty vertical-positioned rectangle to the bottom left corner.

Let's find the total base and total height.

As we can see, in the bottom triangle the height is 4, the other triangle has a height of 5. Combine these to get (4 + 5) = 9 is our total height of the whole triangle.

Now we find the base, 5 is the base of the bottom triangle and the other triangle has a base of 2, combine these to get: (5 + 2) = 7 is the total base of the whole triangle.

Now plug these into our formula of area of triangle;

A = BH x 1/2

A= 7(9) x 1/2

A = 63/2

A = 31.5, is the area of the whole triangle.

Now let's find the area of the empty rectangle to our bottom left corner.

Our length is 4, our width is 2.

A = LW

A = 4(2)

A = 8

Now subtract the empty rectangle's area from the total area of the triangle:-

31.5 - 8 = 23.5 inches.

3. We can see that in this figure, there is an empty semi circle(that has no area) apart of a square.

So to find the area of the unfinished square, we find the area of the semi circle and subtract it from the total area of the square.

Formula for area of a circle:

A = π[tex]r^{2}[/tex]

Where 'π' represents pi aka (22/7 or 3.14), and 'r' represents the radius which is being squared.

But if we were to find the area of a semi circle, we would have to divide the whole formula of a regular circle by 2.

So, A = π[tex]r^{2}[/tex]/2

Now, we plug in the values showing in the diagram into our equation.

Though, since we are given a diameter of 6, we need to find the radius which is 1/2(half) of the diameter.

SO,

1/2 x 6 = 3.

Now that we have our radius, we can finally plug this into our equation:-

A = π[tex]r^{2}[/tex]/2

A = 3.14(3^2)/2

A = 3.14(9)/2

A = 28.26/2

A = 14.13, is our area of the semi circle.

Now we have to find the total area of the square, which we easily just multiply the two lengths.

6(length) x 6(width)

= 36, is the area of the total square.

Now we subtract the area of the semi circle from the area of the total square:

36 - 14.13 = 21.87 feet.

4. To find the area of this, we must split the figure into two shapes, a rectangle and a semi circle.

Using the formulas we applied to our past problems;

(Rectangle)

A = LW

A = 20(8)

A = 160, is the area of the rectangle

Now the semi circle (ignore the 12.56, because it's just the circumference):

We have to find the radius, (1/2 x diameter), so: (1/2 x 8) = 4 is our radius.

A = π[tex]r^{2}[/tex]/2

A = 3.14(4^2)/2

A = 3.14(16)/2

A = 50.24/2

A = 25.12, is the area of the semi circle.

Now we add the two areas,

160 + 25.12 = 185.12 feet.

5. We split this figure into two shapes, a rectangle and a triangle.

Using the formulas we applied earlier to our past problems.

(Rectangle)

A = LW

A = 14(12)

A = 168, is the area of the rectangle.

(Triangle)

A = BH x 1/2

A = 8(12) x 1/2

A = 96 x 1/2

A = 96/2

A = 48, is the area of the triangle.

Now we add these areas;

168 + 48 = 216 centimetres.

Find answers 1,2,3 given the figure

Answers

120 right atrium mhm ventrice

What is the quotient of 3968 divided by 32

Answers

Answer:

124 is your answer to the question

Step-by-step explanation:

(07.05 MC)


A polynomial function can be written as (2x + 5)(x + 3)(x − 1). What are the zeros of this function? (1 point)


Group of answer choices


A. x= -1, -5/2 ,3


B. x = -3, -5/2, -1


C. x= 1, 5/2, 3


D. x = -3, -5/2, 1

Answers

Answer:

D

Step-by-step explanation:

(2x + 5)(x + 3)(x − 1)=0

Use null factor law to solve for x

Q2. Find the value of x​

Answers

Answer:

x= -7

Step-by-step explanation:

subtract 139 from both sides

x-139-139=x

132-139= -7

You have been saving nickels, dimes, and quarters in a jar for about a year. You decide to see how much money you've saved up. When you get everything counted it turns out you have 361 total nickels, dimes, and quarters worth a total of $41.45. You think is is odd that you have exactly twice as many dimes as quarters. Find the number of each coin. Number of Nickels: Number of Dimes: Number of Quarters:

Answers

Answer:

x = number of nickels = 127

y = number of dimes = 156

z = number of quarters = 78

Step-by-step explanation:

Let

x = number of nickels

y = number of dimes

z = number of quarters

Total worth of the coins = $41.45

Total number of coins = 361

x + y + z = 361 (1)

dime = $0.1,

nickel = $0.05

quarter = $0.25

0.05x + 0.1y + 0.25z = 41.45 (2)

twice as many dimes as quarters.

y = 2z

Substitute y = 2z into (1) and (2)

x + 2z + z = 361

0.05x + 0.1(2z) + 0.25z = 41.45

x + 3z = 361

0.05x + 0.2z + 0.25z = 41.45

x + 3z = 361 (3)

0.05x + 0.45z = 41.45 (4)

Multiply (4) by 20

x + 3z = 361 (3)

x + 9z = 829 (5)

Subtract (3) from (5)

9z - 3z = 829 - 361

6z = 468

Divide both sides by 6

z = 468 / 6

= 78

z= 78

Recall,

y = 2z

= 2(78)

= 156

y = 156

Substitute the value of y and z into

x + y + z = 361

x + 156 + 78 = 361

x + 234 = 361

x = 361 - 234

= 127

x= 127

x = number of nickels = 127

y = number of dimes = 156

z = number of quarters = 78

the sum
of the square of two consecutive
odd intergers is
290. Find the integers.

Answers

Answer:

11 & 13 or - 13 & - 11

Step-by-step explanation:

Let the integers are a - 1 and a + 1.

Sum of squares = 290

=> (a - 1)² + (a + 1)² = 290

=> a² + 1² - 2a + a² + 1² + 2a = 290

=> 2a² + 2 = 290

=> 2(a² + 1) = 290

=> a² + 1 = 290/2 = 145

=> a² = 145 - 1 = 144

=> a = ± √144 = ± 12

If a = + 12, numbers are

12 - 1 = 11 & 12 + 1 = 13

If a = - 12, numbers are

- 12- 1 = - 13 & - 12 + 1 = - 11

In complete sentences, compare and contrast the metric system and the U.S customary system. Which system is it easier to convert? Explain.

Answers

Answer:

232423

Step-by-step explanation:

A piece of property has the shape of a right triangle. the longer leg is 10m shorter than twice the length of the shorter leg and the hypotenuse is 20m longer than the length of the longer leg. find the length of the sides of the triangle

Answers

Answer: 80 m, 150 m, 170 m

Step-by-step explanation:

What number makes the equation true enter the answer in the text box

Answers

Answer:

2

Step-by-step explanation:

because 2x4=8

so 2/8=4

Answer:

32

Step-by-step explanation:

firstly do the inverse which is 4 times 8 which is 32

then to check if ur answer is correct do 32 ÷8 which is 4

For what values of a are the following expressions true?


| a + 5 | = -5 - a

Answers

Answer:

not sure if there are more but a=-5

Step-by-step explanation:

|a+5|=-5-a

|-5+5|=-5 - - 5

|-5+5| = -5 + 5

| 0 | = 0

0=0

Answer:

5-5=0+5=5 so the answer is five

Please help, for math 100 points!!!

Answers

Note:-

Calculated approximate values as we can't use ruler in screen !

#1

Sides are

6in3in7in4inPerimeter=20in=20(8)=160ft

#2

Perimeter=2(2+1.5)=2(3.5)=7in=7(8)=56ft

#3

Width:-

2in2(8)16ft

A triangular park ABC has sides 120m, 80m and 50m (see Fig. 12.7). A

gardener Dhania has to put a fence all around it and also plant grass inside. How

much area does she need to plant? Find the cost of fencing it with barbed wire at the

rate of Rs 20 per metre leaving a space 3m wide for a gate on one side.


pls answer ASAP​

Answers

The fence would cover the perimeter of the triangle.

The perimeter is the sum of the 3 sides:

120 + 80 + 50 = 250 meters.

There will be a 3 meter space for the gate, so subtract 3:

250 - 3 = 247 meters of fence is needed.

Now multiply the amount of fences needed by the price per meter:

247 x 20 = Rs 4,490

Plot the points A(-4,-6), B(-10, -10), C(-3, -8) on the coordinate axes below. State the coordinates of point D such that A, B, C, and D would form a parallelogram. (Plotting point D is optional.)

Answers

Check the picture below.

Coordinates of point D of parallelogram = (3 , -4)

What is parallelogram?

A parallelogram is quadrilateral in which opposite angles are equal and opposite sides of the quadrilateral are equal and parallel to each other.

The Diagonals in the parallelogram bisect each other.

Given points

A(-4,-6), B(-10, -10), C(-3, -8)

Let the 4th point D = (x , y)

In a parallelogram, diagonals bisect each other.

midpoint of BD = midpoint of AC

If two points are (x₁ , y₁) and (x₂,y₂)

then midpoint = {(x₁+x₂)/2 , (y₁+y₂)/2}

midpoint of AC = {(-4 + -3)/2 , (-6 + -8)/2}

                         = {-7/2 , -7}

midpoint of BD = {(-10 + x)/2 , (-10 + y)/2}

Now,

midpoint of BD = midpoint of AC

{-7/2 , -7} =  {(-10 + x)/2 , (-10 + y)/2}

Comparing both sides

taking x -coordinate

(-10 + x)/2 = -7/2

Multiplying with 2 on both sides

-10 + x = -7

x = 3

taking y -coordinate

(-10 + y)/2 = -7

Multiplying with 2 on both sides

-10 + y = -14

y = -14 + 10

y = -4

Point D (x , y) = (3, -4)

Hence, (3, -4) are the coordinates of point D of parallelogram.

Learn more about parallelogram here:

https://brainly.com/question/29147156

#SPJ2

A restaurant bill is $69. A customer wants to leave a 10% tip. How much should the tip be?

Answers

Answer:

$6.90

Step-by-step explanation:

The tip should be $6.90 because you take the 10% tip and turn that into a decimal (0.10) and just multiply that by the bill.

Devin buys 12 candy bars for
$12. He sells them for $1
each. What's wrong with this
scenario?
do
What would
you
differently?

Answers

Devin is buying 12 for $12 so for each he bought it was $1. If he’s selling them for the same price he bought them for (each) when he sells all 12 for $1, he will be left off with the same price he started off with. Devin is not making any profit. What i would do is sell them for $1.50, and then after each is sold, the total earnings would be $18.

Can someone help me with this pls

Answers

Answer:

D

Step-by-step explanation:

it goes from 3 to 5

There are 24 students in the class. They had the choice to buy supplies from two different stores, Store A and B. Each of them bought 2 binders and 5 notebooks. The students have a total of $420 to spend. Part A:

If the unit price of a notebook in Store A is $1. 50, what is the unit price of a binder?

Answers

The unit price for a binder is $5.

What is the exact decimal equivalent of 7/12 ??​

Answers

Answer:0.583

7/12 as a decimal is equivalent to 0.583.

Step-by-step explanation:

Answer:

0.583

Step-by-step explanation:

in this case we must divide the numerator by the denominator ie.(7÷12)

How much simple interest does $2,560 earn in 17 months at a rate of 11
%. Round to the nearest cent (hundredth). What will be the new
balance?

Answers

Answer:

You end up with $15,091.44 This means you earned $12,531.44

Step-by-step explanation:

I also want to know if the table is correct

Answers

Answer:

yes and b

Step-by-step explanation:

Can someone help me?

Answers

Answer:

14/81

Step-by-step explanation:

you plug in 5 for x

Hi, can someone answer this for me?

Answers

Step-by-step explanation:

that's for roman I.......

What is the opposite of (x+120)?

Answers

Answer:

-(x+120)

Step-by-step explanation:

Thursday
Evaluate the following expression. Show your
steps.
Step 1: Plug in (substitute)
Step 2: Solve.
3(b + 8); b = 9
Motob

Answers

Answer:

51

Step-by-step explanation:

3(b+8)

3(9+8)

3(17)

51

I dont know what the axis of symmetry is...​

Answers

Answer:

The axis of symmetry of a parabola is a vertical line that divides the parabola into two congruent halves. ... The x -coordinate of the vertex is the equation of the axis of symmetry of the parabola. For a quadratic function in standard form, y=ax2+bx+c , the axis of symmetry is a vertical line x=−b2a .

Step-by-step explanation:

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