Having trouble understanding....please help me.

Answer:

x=5

Step-by-step explanation:

2x+7=5x-8

+8+7=5x-2x

15=3x

15/3

x=5

Answer:

HDE is the semicircle

EH is the diameter

Answer:

.5 yards or 18 in

Step-by-step explanation:

3 yards = 108 in

1/6 yards = 6 in

108in/6in= 18in

18in=.5yards

Answer:

a² + 2ab + b² + a² - 2ab + b²

2a² + 2b²

Step-by-step explanation:

Remember (a + b)² = a² + 2ab + b²

            and (a - b)² = a² - 2ab + b²

Answer:

45 so C

Step-by-step explanation:

Its right on edge

Answer:

im guessing the answer  would be C but im not sure

before hand sorry if you get it wrong

Step-by-step explanation:

Answer:

i think its b

Step-by-step explanation:

Answer:

exact form:

-111/8

Decimal form:

-13.875

Mixed Number Form:

-13 7/8

Answer:

-5.875

Step-by-step explanation:

primero se resuelve el paréntesis

1/4 =0.25

y se multiplica por el -6

0.25x-6= -1.5

luego se resuelve el otro lado

primero dividimos

5/8=0.625

y se multiplica por -7

0.625x-7= -4.375

y para finalizar se suman los dos lados

-4.375 + -1.5

= -5.875

Answer:

n= 3 1/9

Step-by-step explanation:

3/8n= 5/6 + 1/3

3/8n = 7/6

n = 7/6  ÷ 8/3

n=28/9

n= 3 1/9

Answer:

I think it's 3 1/9

Step-by-step explanation:

3/8n-1/3=5/6

×3. ×8. ×4

9/24n-8/24=20/24

+8/24. +8/24

9/24n=28/24

÷9/24. ÷9/24

n=28/24÷9/24

n=28/24×24/9

n=672/216

n=28/9

n=3 1/9

Answer:

Measure of 3rd angle is 80 degrees

angle SAX - angle PAX = measure of 3rd angle (SAP)

hence 141 - 61 = 80 degrees

hence measure of 3rd angle is 80 degrees

GOOD LUCK FOR THE FUTURE! :)

Halfway Between 0 and 121

Halfway Between

When you ask "What number is halfway between 0 and 121?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=0 and Y=121.

Halfway Between Line

To find the number halfway between 0 and 121, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 0 and 121 into our formula, we get:

(0 + 121)/2 = 60.5

Thus, the number halfway between 0 and 121 is 60.5

Answer:

solution given;

half way between 0 and 121=?

let a=0

and

b=121

we have

halfway =[a+b]/2=[0+121]/2=60.5

half way between 0 and 121 is 60.5

Answer:

$0.72

Step-by-step explanation:

:)

Answer:

Yo, thx for the free points man

Step-by-step explanation:

Answer:

The answer is "562.432"

Step-by-step explanation:

Given:

[tex]P= 500\\\\r= 4\%\\\\n= 3 \ years\\\\\text{frequency of conversion}\ (A)=?[/tex]

Using formula:

[tex]\to A=P(1+r)^n[/tex]

       [tex]= 500(1+4\%)^3\\\\= 500(1+\frac{4}{100})^3\\\\= 500(1.04)^3\\\\=500 \times 1.124864\\\\= 562.432[/tex]

Answer:

x=8 and y=−1

Step-by-step explanation:

Answer:The formula to find the perimeter of the quadrilateral = sum of the length of all the four sides.Here the lengths of all the four sides are 5 cm, 7 cm, 9 cm and 11 cm.Therefore, perimeter of quadrilateral = 5 cm + 7 cm + 9 cm + 11 cm = 32 cm

Step-by-step explanation:

Answer:

The answer is

[tex] a = \frac{11}{7} \\ b = \frac{6}{7} [/tex]

Step-by-step explanation:

[tex] \frac{3 + \sqrt{2} }{3 - \sqrt{2} } \times \frac{3 + \sqrt{2} }{3 + \sqrt{2} } \\ = \frac{9 + 3 \sqrt{2} + 3 \sqrt{2} + 2}{9 - 3 \sqrt{2} + 3 \sqrt{2} - 2 } \\ = \frac{11 + 6 \sqrt{2} }{7} \\ = \frac{11}{7} + \frac{6}{7} \sqrt{2} \ [/tex]

In comparison

Then

[tex]a = \frac{11}{7} \\ b = \frac{6}{7} [/tex]

Each Candy Bar is $2, so if he sells 10, you just need to multiply,

10 * $2 = 20

So He'll make $20, selling 10 bars.

If he sells 50 bars then just multiply,

50 * $2 = 100

So He'll make $100 selling 50 bars.

Answer:

he will make $20 dallors

10×$2=20

Answer:

We conclude that, at 4 minutes, both will have the same height which is 200 feet.

Step-by-step explanation:

Given the system of equations

[tex]y=400+50x[/tex]

[tex]y=300+25x[/tex]

Important Tip:

Graphing the system of equations

The graph of the equation y = 400 + 50x

First, determine the y-intercept of the equation y = 400 + 50x by substituting x = 0

[tex]y = 400 + 50x[/tex]

[tex]y = 400 + 50(0)[/tex]

[tex]y = 400 + 0[/tex]

[tex]y = 400[/tex]

Thus, we determine that the ordered pair (0, 400) represents the y-intercept of the equation y = 400 + 50x.

Next, determine the x-intercept of the graph of the equation y = 400 + 50x by substituting y = 0

[tex]y = 400 + 50x[/tex]

[tex]0=400+50x[/tex]

switch sides

[tex]400+50x=0[/tex]

Subtract 400 from both sides

[tex]400+50x-400=0-400[/tex]

Simplify

[tex]50x=-400[/tex]

Divide both sides by 50

[tex]\frac{50x}{50}=\frac{-400}{50}[/tex]

Simplify

[tex]x=-8[/tex]

Thus, we determine that the ordered pair (-8, 0) represents the x-intercept of the equation y = 400 + 50x.

Important Tip:

The red graph on the diagram represents the equation y = 400 + 50x having the y-intercept (0, 400) and x-intercept (-8, 0)

Please check the attached diagram.

The graph of the equation y = 300 + 25x

Now, determine the y-intercept of the equation y = 300 + 25x by substituting x = 0

[tex]y = 300 + 25x[/tex]

[tex]y = 300 + 25(0)[/tex]

[tex]y = 300 + 0[/tex]

[tex]y = 300[/tex]

Thus, we determine that the ordered pair (0, 300) represents the y-intercept of the equation y = 300 + 25x.

Next, determine the x-intercept of the graph of the equation y = 300 + 25x by substituting y = 0

[tex]y=300+25x[/tex]

[tex]0 = 300 + 25x[/tex]

switch sides

[tex]300+25x=0[/tex]

Subtract 300 from both sides

[tex]300+25x-300=0-300[/tex]

Simplify

[tex]25x=-300[/tex]

Divide both sides by 25

[tex]\frac{25x}{25}=\frac{-300}{25}[/tex]

Simplify

[tex]x=-12[/tex]

Thus, we determine that the ordered pair (-12, 0) represents the x-intercept of the equation y = 300 + 25x.

The blue graph on the diagram represents the equation y = 300 + 25x having the y-intercept (0, 300) and x-intercept (-12, 0)

Please check the attached diagram.

Analyze the POINT OF INTERSECTION:

As we already know that the point of intersection of the two lines would give us the point at which both have the same height.

The diagram indicates that:

at x = -4, the value of y = 200.

It is the point where both lines meet.

Thus, the point of intersection of the two lines is:

(x, y) = (-4, 200)

Conclusion:

As x represents the time in minutes and y represents the height in feet.

Thus, we conclude that at x = 4 minutes, both will have the same height i.e. y = 200 feet

Therefore, we conclude that, at 4 minutes, both will have the same height which is 200 feet.

Answer:

B

Step-by-step explanation:

Answer:

the answer is b. -4y+1

Step-by-step explanation:

b -4y+1

Answer:14.4

Step-by-step explanation:

Answer:

0.6

Step-by-step explanation:

Answer:

x=5

Step-by-step explanation:

The right angle opposite is the hypotenuse

The 30° is the opposite

SohCahToa

Soh = Sin because you got Opposite and Hypotenuse (because you're trying to find the side, you'd do the opposite of dividing, which is times)

10×sin(30)=5

Step-by-step explanation:

This is what it is equal to:

9×3x=27x

9×8=72

Therefore it will be:

[tex]27x + 72[/tex]

hope it helps!

Answer:

27x+72

Step-by-step explanation:

You have to use the distributive property to simplify the expression. Therefore, you have to  multiply both terms inside the parentheses.

1. 9*3x=27x

2. 9*8=72

They could not be added together, as they are not like-terms. So, you just write it down as 27x+72.

Answer:

7 days

Step-by-step explanation:

It would also take 7 days

Answer:

answer is 10

Step-by-step explanation:

2x^2(x-5) /10x

x=10

so,

=2*10^2 (10-5) / 10*10

=2*100(10-5) /100

=200*5 / 100

=1000/100

=10

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

The value of b when x = 10 is 10.

An expression is a way of writing a statement with more than two variables or numbers with operations such as addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

b = 2x² (x - 5) ÷ 10x

When x = 10 find b.

Now,

b = (2x² (x - 5))/ 10x

Substitute x = 10

b = 2 x 10² ( 10 - 5) / 10 x 10

b = 200 x 5 / 100

b = 10

Thus,

The value of b when x = 10 is 10.

Learn more about expressions here:

https://brainly.com/question/3118662

#SPJ2

Answer:

a.

Step-by-step explanation:

girls 60/50

boys 40/50

40/50 is 10

Answer:

It is a linear.

Step-by-step explanation:

Because after factor the function you will get f(x)= 5x, and the linear function is y=ax.

Answer:

6/38, 9/38 are two

Multiply by 2 and 3 DONT multiply the denominators when multiplying.

Answer:

The sequence is arithmetic

Step-by-step explanation:

Here we want to determine the sequence is arithmetic

If the sequence was arithmetic, the difference between the terms would be constant

We have this as;

10-(-12) = 22

32-10 = 22

54-32 = 22

As we can see, the difference is constant and so we have it that the sequence is arithmetic