William has scored a total of 235 points on the first three math tests taken in his mathematics class. If his mathematics test are always worth 100 points, how many points must he earn on his next test in order to have an average of 80%

Answer:

A, E, F

Step-by-step explanation:

Answer:

I'm not sure if it's .45 or just 45 so I'll do both

0.45 x 120 = 54

45 X 120 = 5400

I don't think a person would weigh 5400kg

Answer:

The first statement is correct(15+(-7)+4+8)=20

The total amount of paint needed is 15 quart and it cost $41.25.

An equation is an expression that shows the relationship between two or more variables and numbers.

0.0015 quart of paint to cover 1 square inch.

Let the area of the rectangle be 10000 in², hence:

Amount of paint = 0.0015 quart per in² * 1000 in² = 15 quart

Cost of paint = $2.75 per quart *  15 quart = $41.25

The total amount of paint needed is 15 quart and it cost $41.25.

Find out more on equation at: https://brainly.com/question/2972832

Answer:

5/7 -2/4

5×4-2×7/28

20-14/28

6/28

0.21

Answer:

the cost price of manufacturer = RS. 14.80

Step-by-step explanation:

the retailers profit = profit percent of sold amount

= 25% of 30.09

= 25/100 × 30.09

= 7.5225

here, the cost price of retailer =

sold amount- profit amount

or, CP = 30.09 - 7.5225

= 22.5675

now, profit of whole seller =

profit% of sold amount

or, 20% of SP

20/100 × 22.5675

= 4.5135

CP = SP - Profit

or, CP = 22.5675- 4.5135

CP = 18.054

now, profit of manufacturer = profit℅ of SP

= 18% of 18.054

= 18/100 × 18.054

= 3.24972

or, CP of manufacturer = SP - profit amount

= 18.054 - 3.24974

= 14.80428

Therefore, cost price of manufacturer = 14.80

Answer:

All you have to do is image flipping the triangle on the right over and then you'll see they are equal. You can also look at AB and DE and see they both are right angles.

Step-by-step explanation:

Answer:

1x+3x=200

4x=200

x=50

1x=50 x=50

4(50)=150

then the answer is 50 and 150

Answer:

3 pairs for $71 makes each pair about $23.67.

8 pairs would be around $189.36.

(I rounded to the nearest hundredth since the problem is about money and rounding to the second decimal place is standard.)

Hey there!

2/3x + 5 = 1

SUBTRACT 5 to BOTH SIDES

2/3x + 5 - 5 = 1 - 5

SIMPLIFY IT!
2/3x = 1 - 5

2/3x = -4

MULTIPLY 3/2 to BOTH SIDES

2/3x * 3/2 = -4 * 3/2

SIMPLIFY IT!

x = -4 * 3/2

x = -6

Therefore, your answer is: x = -6

Good luck on your assignment & enjoy your day!

~Amphitrite1040:)

Answer:

2/3x + 5=1

To solve for x, we must isolate it by administering inverse operations.

In this equation, we can see 2/3x is being added to 5.

We should discard the constants first.

The inverse operation of addition, is subtraction.

So we subtract 5 from both sides;

-5        -5

2/3x = -4

Now, we are left with a coefficient, so to get rid of the coefficient we utilize the inverse operation of multiplication, which is division.

Dividing by 2/3 is the same as multiplying by 3/2.

So multiply both sides by 3/2;

*3/2    *3/2

x = -4(3)/2

x = -12/2

x = -6

Compare both pairs

[tex]\\ \rm{:}\dashrightarrow 8q-2=6[/tex]

[tex]\\ \rm{:}\dashrightarrow 8q=6+2[/tex]

[tex]\\ \rm{:}\dashrightarrow 8q=8[/tex]

[tex]\\ \rm{:}\dashrightarrow q=\dfrac{8}{8}[/tex]

[tex]\\ \rm{:}\dashrightarrow q=1[/tex]

And

[tex]\\ \rm{:}\dashrightarrow 2-7p=p+6[/tex]

[tex]\\ \rm{:}\dashrightarrow 2-6=8p[/tex]

[tex]\\ \rm{:}\dashrightarrow p=-1/2[/tex]

Answer:

  45°

Step-by-step explanation:

The triangles CPN and APM are isosceles, which gives rise to angle relationships that can be used to find the desired angle.

Let the angle at A be represented by α. Then the angle at C is the complementary angle (90° -α). The angles MPA and NPC are, respectively ...

  ∠MPA = (180° -α)/2 = 90° -(α/2) . . . . . . . base angle of ΔAPM

  ∠NPC = (180° -(90° -α))/2 = 45° +α/2 . . . base angle of ΔCPN

The sum of angles MPA, MPN, NPA is the linear angle APC, so we have ...

  ∠MPA +∠MPN +∠NPA = 180°

  (90° -α/2) +∠MPN +(45° +α/2) = 180°

  135° +∠MPN = 180°

  ∠MPN = 45°

Answer:

[tex]D.\:\left(x-3\right)\left(x+6\right)[/tex]

Step-by-step explanation:

[tex]x^2 + 3x - 18[/tex]

[tex]\left(x^2-3x\right)+\left(6x-18\right)[/tex]

[tex]\left(x^2-3x\right):x\left(x-3\right)[/tex]

[tex]\left(6x-18\right):6\left(x-3\right)[/tex]

[tex]x\left(x-3\right)+6\left(x-3\right)[/tex]

Factor, common term:- x-3

[tex]\left(x-3\right)\left(x+6\right)[/tex]

~

Answer:

Slope: 0.3

Step-by-step explanation:

When you turn the equation into as lope intercept form, it is easy to see the slope

Slope intercept form: y = mx + b

Y = y coordinate

M: slope

X : x coordinate

b = y intercept

y = 0.3x + 3.26

Have an amazing day!!

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Part A:-(Refer to the attachment)

Part B:-

For interpretation we need graph(attached)

Note that correlation coefficient is the linear correlation between two sets

Answer:

here is your answer

944 sq.in.

hope u understand

mark as brilliant and follow pls

Answer:

if you know why do that but the answer is

36

I know I would like to do that too but that's wrong even if you are New to brainly

Answer:

incomplete question

Step-by-step explanation:

you are required to give the circumference and the diameter in order to complete this equation

Answer:

5n

d=10-5

=5

a=5

n=a+ (n-1)d

=5+(n-1)5

=5+5n-5

=5n

Answer:

Step-by-step explanation:

w (width) = 32/8

w = 4

p (perimeter) = 2w + 2l

p = (2 x 4) + (2 x 8)

p = 8 + 16

p = 24

Answer:

(x - 4)^2 - 11

Step-by-step explanation:

Here, the question asks you to complete the square. The steps to do so are the following:

ax^2 + bx + c = a(x - b/2 x)^2 -(b/2)^2 + c

1. halve the x coefficient and put it with x as a binomial squared

2. minus the new coefficient squared

3. collect like terms

so let's do it for this question:

x^2 - 8x + 5

step 1:

half of -8, is -4, so we'll get:

= (x - 4)^2 + 5

However this isn't equal to x^2 - 8x + 5, but to x^2 - 8x + 16 + 5. Therefore we must get rid of 16 (step 2). You will notice 16 = (-4)^2 (from the first formula I gave.)

= (x - 4)^2 - 16 + 5

step 3:

= (x - 4)^2 - 11

Answer:

(x - 4)² - 11

Step-by-step explanation:

x² - 8x + 5

using the method of completing the square

add/subtract ( half the coefficient of the x- term )² to x² - 8x

x² + 2(- 4)x + 16 - 16 + 5

= (x - 4)² - 11

The value of the expression is 6.87 x 10⁹.

The value of the given expression is calculated as follows;

(PV⁷) /(5P)

where;

The value of the expression is obtained when the given value is substituted as shown below;

(PV⁷) /(5P) = (6 x 32⁷) / (5 x 6)

                 = 32⁷/5

                 = 6.87 x 10⁹

Thus, the value of the expression is 6.87 x 10⁹.

Learn more about substitution method here: https://brainly.com/question/22340165

Answer: Since the slope of a line is the change in y divided by the change in x, given two points (x1,y1) and (x2,y2) we can find the slope by calculating (y2-y1)/(x2-x1).

Answer:

Use the formula [tex]\frac{y_2-y_1}{x_2-x_1}[/tex]

Step-by-step explanation:

The formula to find the slope of a line given two points is [tex]\frac{y_2-y_1}{x_2-x_1}[/tex], where x_1 and y_1 are the coordinate of one point, and x_2 and y_2 are the coordinates of another (different) point.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

The product of (2x+y) and (5x-y+3) is (10x²+3xy+6x-y²+3y).

Polynomial is an expression that consists of indeterminates(variable) and coefficient, it involves mathematical operations such as addition, subtraction, multiplication, etc, and non-negative integer exponentials.

The product of the two given polynomial (2x+y) and (5x-y+3), can be written as,

[tex](2x+y) (5x-y+3)\\\\= 10x^2-2xy+6x+5xy-y^2+3y\\\\=10x^2-2xy+5xy+6x-y^2+3y\\\\=10x^2+3xy+6x-y^2+3y[/tex]

Hence, the product of (2x+y) and (5x-y+3) is (10x²+3xy+6x-y²+3y).

Learn more about Polynomial:

https://brainly.com/question/17822016

Answer:

10, 3, 6, -1, 3

Step-by-step explanation:

The volume of silver metal that will weigh exactly 2500 grams having a density of 10.5g/cm3 is 238.1cm3

Density is the ratio of the mass of a substance to its volume.

Analysis:

Density = 10.5g/cm3 = mass/volume

10.5 = 2500/volume

volume = 2500/10.5 = 238.1g/cm3

In conclusion, the volume of silver metal to weigh exactly 2500grams is 238.1cm3

Learn more about density: brainly.com/question/1354972

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Answer:

It is surely 16mm2, because a cube is always two-dimensional.

Step-by-step explanation:

This means that it has to be a value with mm2!

Hope I helped!

Answer:

calculate the value of × if :

72:64=×:16

12 divided by 3 is 4;but, what is the sum of c mean