A student earns an 80% on their science test. If she got 20 questions correct, how many total were on the test?

Answer:

[tex]\huge\boxed{Answer\hookleftarrow}[/tex]

Given,

Diameter (d) = 20 ft

Radius (r) = ?

[tex]r = \frac{d}{2} \\ r = \frac{20}{2} \\ r = 10 \: \: ft[/tex]

____________________

Now, we've to find the exact circumference (c) ..

[tex]c = 2\pi \: r \\ c = 2\pi \times 10 \\ c = 20\pi ft[/tex]

⎆ The answer is [tex]\large\bold{20π \ ft (option \ C)}[/tex]

____________________

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# ꧁❣ RainbowSalt2²2² ࿐

Answer:

Step-by-step explanation:

Use properties of exponents:

Simplify the given expression:

[tex]\\ \rm\Rrightarrow 3^4x\left(\dfrac{3}{x^2}\right)^{-2}[/tex]

[tex]\\ \rm\Rrightarrow 3^4x\times \left(dfrac{x^2}{3}\right)^2[/tex]

[tex]\\ \rm\Rrightarrow 3^4x\times\dfrac{x^4}{3^2}[/tex]

[tex]\\ \rm\Rrightarrow 3^2x^5[/tex]

[tex]\\ \rm\Rrightarrow 9x^5[/tex]

Answer:

82

Step-by-step explanation:

m = 4

8m = 4 x 8 = 32

n = 10

5n = 5 x 10 = 50

32 + 50 = 82

Answer: A

Step-by-step explanation:

I had this question on my test yesterday lol

The system of equation will be ". a + c = 90 8a + 5c = 525"

Let the number of adults tickets be represented by a

Let the number of children tickets be represented by c.

Since 90 total tickets were sold, this can be represented by the equation:

a + c = 90

Since adult movie tickets cost $8 each while the children pay $5 for a ticket, and total cost spent is $525, this will be:

8a + 5c = 525

Therefore, the correct option is A.

Read related link on:

https://brainly.com/question/24597422

Answer:

84

Step-by-step explanation:

1. Set up Problem

2. Add form right to left

Answer:

$330,000

Step-by-step explanation:

The selling price per unit is $15

The variable cost per unit is $5

Units sold is $33,000

The contribution margin can be calculated as follows

(15-5)×33000

= 10 × 33000

= 330,000

Hence the contribution margin is $330,000

Answer:

I think it will be positive.

Step-by-step explanation:

Anything that is on the right hand side of the number line is always positive.

Answer:

[tex](a + b - 3) + (b + 2a - 1) + (4 - 6b + 2a)[/tex]

=

[tex]a + 2a + 2a + b + b - 6b - 3 - 1 + 4[/tex]

[tex]5a - 4b - 4 + 4[/tex]

[tex] = 5a - 4b + 0[/tex]

[tex] = 5a - 4b[/tex]

have nice day

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Answer:

reciprocal of 5 is 0.2.

hope it helps you

1.) 510 miles

Take the values you have been given which is 153 miles and 3 gallons of gas

Now divide 153 by 3 to find put the Miles per gallon (MPG)

153/3=51

now take 51 and multiply it by 10

51x10=510

2.) $16 per yard of plywood

Let's take the values we have been given

3/4 of a yard of plywood and $12 for it

Now let's divide it

12/ 3/4=$16

Answer:  C

Step-by-step explanation:

Find Slope first

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

[tex]m=\frac{2-.5}{3-1}[/tex]

[tex]m=1.5/2\\m=3/4[/tex]

Slope is 3/4

Chose a point to put in point slope form

(1,1/2)

y − y1 = m(x − x1)

[tex]y-\frac{1}{2} =\frac{3}{4} (x-1)[/tex]

[tex]y-\frac{1}{2} = \frac{3}{4}x-\frac{3}{4}[/tex]

add 1/2 to both side

Answer:

Option b) total number of miles for the trip .

maybe this was your answer

Answer: [tex]27.6\ in.^3[/tex]

Step-by-step explanation:

Given

Length of Prism is [tex]l= 7.34\ in.[/tex]

The width of Prism is [tex]w=3.12\ in.[/tex]

The height of Prism is [tex]h=6\ in.[/tex]

The volume of a The height rectangular prism is given as

[tex]V=l\times w\times h[/tex]

Substituting values we get

[tex]\Rightarrow V=7.34\times 3.12\times 6=137.404\ in.^3[/tex]

Volume of storage [tex]V_s=165\ in.^3[/tex]

The difference in volume is

[tex]\Rightarrow 165-137.404=27.59\approx 27.6\ in.^3[/tex]

Answer:

x = 17

Step-by-step explanation:

Here, we want to find the value of x

mathematically, the mean is the sum of the numbers divided by the count of the numbers

The count of the numbers is 5

So we have;

(16 + 14 + x + 23 + 20)/5 = 18

73 + x = 5(18)

73 + x = 90

x = 90-73

x = 17

Answer:

Consider the finite arithmetic sequence,

Use the explicit formula for an arithmetic sequence,

...... (83.84.94.92.91.100

First term of the sequence is

Answer:

1. -53

2. 35 terms

Step-by-step explanation:

Answer:

Non-Linear

Step-by-step explanation:

In linear equations, the variable 'x' shouldn't be in the denominator of a fraction. It will not form a straight line when graphed.

See picture below.

Hope this helps!

y=10-2/x is a non linear equation

The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.

A linear equation is an algebraic equation of the form y=mx+b. involving only a constant and a first-order (linear) term, where m is the slope and b is the y-intercept.

The given equation is y=10-2/x

The x variable is in the denominator.

The given equation is not in the form of the linear equation y=mx+b.

and when we graph this equation we do not get a straight line.

Hence,  y=10-2/x is a non linear equation

To learn more on slope intercept form click:

https://brainly.com/question/9682526

#SPJ2

Answer:

No solution would mean that there is no answer to the equation. ... Infinite solutions would mean that any value for the variable would make the equation true?

Answer:

okay mate

Step-by-step explanation:

2 *7/8

2 gets cancelled and it is 7/4

where is the example

I can't answer the question without the example provided, but here are some steps to solve it.

Basic info-

Circumference (C)

3.14 is used for pi π= 3.14

The line halfway of the circle is the radius(r)

The line through the circle is the diameter(d)

Formulas:

C= 2πr

2 × 3.14 × the radius

OR

C= πd

3.14 × the diameter

Answer:

(The second option) sin40° = w / 28

Step-by-step explanation:

sin40° = opposite / hypotenuse

sin40° = w / 28

Answer:

The slope intercept form is y= 7x -4

Answer:

6,812.26

Step-by-step explanation:

I found the answer key

Answer:

the selling price of the goods is ₹6,00,000

Step-by-step explanation:

The computation of the selling price of the goods are shown below:

As we know that

Selling price = Cost price + profit

= 5,00,000 + 5,00,000 × 0.20

= 5,00,000 + 1,00,000

= ₹6,00,000

Hence, the selling price of the goods is ₹6,00,000

Answer: 4x^7/5

Step-by-step explanation:

Reduce the numbers, then calculate the problem.

Answer:

Undefined slope

Human:

✧･ﾟ: *✧･ﾟ:*  Answer:  *:･ﾟ✧*:･ﾟ✧

✅ 5/4

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