Expand: -3(x – y + 5)​

Step-by-step explanation:

Jimmy's group : has 841 students

Lauren's group: has 351 students

9 vans  16 buses

8 vans 5 buses              

Vans: V

Buses: B

9v + 16b = 841

9v + 16b = 841

        -16b     -16b

9v/ 9 = 841 /9 - 16b/9

8( 841/9 - 16b/9) +5b = 351

v - (841/ 9 - 16b / 9 )

8 (841 / 9 - 16b/9) +5b =  351

6728/9 - 128b / 9 +5b = 351

-128b/9 + 45b/9 = -83/9b

6728/9 -83/9

- 6728/9   +83/9 = 3159/9 - 6728/9

(9)83b / 9 = -3569 (9)/9

-83b = -3564

-83        -83

B = 43 students

8v + 5b = 351  

8v + 5 (43) = 351

8v + 215 = 315

      -215      -215

8v = 136

8        8

V = 17 students

43 students can fit on a bus and 17 students can fit in a van.

Answer:

1.)5508      2.)5600 x^2

Step-by-step explanation:

Answer:

162

Step-by-step explanation:

Sum of all the angles of any polygon = (n - 2) * 180

                                                             = (20 - 2) *180

                                                            = 18 * 180

                                                            = 3240

Interior of a polygon with 20 sides = 3240 /20

                                                           = 162

Answer:

18 bottles of water for $10 because each bottle costs 56c compared to 6 bottles of water for $4 at 67c

Step-by-step explanation:

All values rounded to the hundredth

6 bottles of water for $4

4/6=0.67

Each bottle costs 67c

18 bottles of water for $10

10/18=0.56

Each bottle costs 56c

Answer:

Step-by-step explanation:

Dacă adaug un sfert de la jumătate de b și o treime de c, obțin 120.

Aceasta se exprimă ca:

1 / 4a + 1/2 b + 1 / 3c = 120 ..... Ecuația 1

Știind că jumătate din b este de 24 de ori mai mare decât un sfert de a

1 / 2b = (1/4 × a) 24

b / 2 = (a / 4) 24

b / 2 = 6a

Cross Multiply

b = 6a × 2

b = 12a

a = b / 12

Jumătate din b este de 4 ori mai mare decât o treime din c

1/2 × b = 4 × (1/3 × c)

b / 2 = 4 (c / 3)

b / 2 = 4c / 3

Cross Multiply

b = 2 × 4c / 3

b = 8c / 3

8c = 3b

c = 3b/8

1 / 4a + 1/2 b + 1 / 3c = 120 ..... Ecuația 1

Înlocuim

1/4 × b / 12 + 1 / 2b + 1/3 × 3b / 8= 120

b / 48 + b / 2 + b/8 = 120

Înmulțiți cu 48

b/48 × 48 + b/2 × 48 + b/8× 48 = 120 × 48

b + 24b + 6b = 5760

31b = 5760

Answer:

0 solutions

Step-by-step explanation:

-6x+3y=18

  y=2x-2.   so substitute y in the first equation

-6x+3(2x-2)=18 distribute and combine like terms

-6x +6x-6=18 and we end up with

-6=18 witch is never true so the system of equation has 0 solutions

Answer:

x=0

Step-by-step explanation:

6x-18=4(2x-3)-(2x+6)

We move all terms to the left:

6x-18-(4(2x-3)-(2x+6))=0

We calculate terms in parentheses: -(4(2x-3)-(2x+6)), so:

4(2x-3)-(2x+6)

We multiply parentheses

8x-(2x+6)-12

We get rid of parentheses

8x-2x-6-12

We add all the numbers together, and all the variables

6x-18

Back to the equation:

-(6x-18)

We get rid of parentheses

6x-6x+18-18=0

We add all the numbers together, and all the variables

=0

x=0/1

x=0

Answer:

270°

Step-by-step explanation:

We know that a full circle is 360°, the shape of a clock, and that the clock is divided into 12 different sections.

Our equation would be: 360 ÷ 12 = 30

3:05 is at the 1 hand and 3:50 is at the 10 hand. Subtract 1 from 10 and you get 9.

9 · 30 = 270, so our angle is 270°

I hope this helped, please mark Brainliest, thank you!

Answer: A. Points

Step-by-step explanation:

I got the answer wrong with the first answer. So it’s A. Points

Answer:

Step-by-step explanation:

Answer:don’t worry u not dum and also im sorry that’s not a function.

Step-by-step explanation:

Give me brainliest!

If all the relevant discounts are used including the store credit card, the final price of the phone would be $375.15.

The sale price of the phone has been discounted by 35% which makes it:

= Price of phone x (1 - discount)

= 679 x ( 1 - 35%)

= $441.35

Then using the store credit card would reduce this by a further 15%:

= 441.35  x (1 -15%)

= $375.1475

= $375.15

In conclusion, the final price of the phone is $375.15.

Find out more at https://brainly.com/question/19637511.

Answer:

11 / 3 hours

Step-by-step explanation:

Answer:

A. y = 7/4x + 7

Step-by-step explanation:

y = mx +c

4y -7x = 8

(make y the subject of formulae)

4y = 8 + 7x

divide through by the coefficient of y (4)

y = 2 + 7/4x

7/4 = m1

since the line is parallel m1 = m2

let see : {y -y¹}÷ {x-x1} = 7/4

x¹= -4 , y¹ = 0

{y - 0} ÷ {x- (-4) } = 7/4

cross multiply

4(y - 0) = 7(x+4)

4y - 0 = 7x + 28

4y = 7x +28 +0

4y = 7x + 28

(divide both sides by the coefficient of y)

y = 7/4x +28/4

y = 7/4x + 7

Answer:

[tex]\displaystyle x=\sqrt{\frac{2U}{k}}[/tex]

The third option is the correct answer.

Step-by-step explanation:

Equation Solving

We have the following equation:

[tex]\displaystyle U=\frac{1}{2}kx^2[/tex]

And it's required to solve it for x.

To solve this equation we need to perform some operations to have the x isolated from any other variables, constants, or operations.

This will be done by conveniently operating on both sides as follows:

Eliminate the denominator by multiplying by 2:

[tex]\displaystyle 2U=kx^2[/tex]

Move k to the other side by dividing by k:

[tex]\displaystyle \frac{2U}{k}=x^2[/tex]

Swapping sides to have x at the left side:

[tex]\displaystyle x^2=\frac{2U}{k}[/tex]

Taking the square root:

[tex]\mathbf{\displaystyle x=\sqrt{\frac{2U}{k}}}[/tex]

The third option is the correct answer.

Answer:

[tex](4,6)[/tex]

General Formulas and Concepts:

Step-by-step explanation:

Step 1: Define points

Q (3, 2)

R (5, 10)

Step 2: Find Midpoint

Answer:

x = 11

Step-by-step explanation:

We know that vertical angles (opposite angles when two lines cross), are equal.

2x - 6 = 6x - 50

4x = 44

x = 11

Answer:(0,4),(0,0),(3,0)

Step-by-step explanation:

It is easy to find lengths of horizontal and vertical segments and distances from (0,0) so always place one vertex at the origin and one or more sides on an axis.

As in this answer has y intercept, and x intercept, and (0,0)

Answer:

$117.14

Step-by-step explanation:

A "sales tax" refers to a specific amount of money (according to its percentage) that you need to pay other than the price of the good stated.

So, if the price of the smart watch is $109.99 and the sales tax is 6.5%, you have to know much is 6.5% of $109.99. This can be computed by using the multiplication operation.

109.99 x 6.5% (0.065) = $7.15 (this is the sales tax)

In order to know the total cost of the smart watch, you have to add the sales tax to the price of the smart watch.

$109.99 + $7.15 = $117.14

The total cost of the smart watch is $117.14

Answer:

$117.14

Step-by-step explanation:

I toke the quiz and a k12 student.

Answer:

C OR D

Step-by-step explanation:

Answer: 3/2

Step-by-step explanation: slope is 3/2, I calculated it with the slope formula

Answer:

The slope is -4/3.

Step-by-step explanation:

Slope = rise/run. Starting at (3, -1), you go up 4 units and over to the left 3 units to (0,3). Since it's a line of decay, the slope is negative.

Answer:

the slope should be -4/3

Step-by-step explanation:

you go down 4 and to the right 3 so I am pretty sure it is -4/3

Answer:

1. y=2x-3

2. y=4x-2

Step-by-step explanation:

Answer:

no solution

Step-by-step explanation:

Answer:

|4x-2|">"-6

add 2 to both sides

4x">"-4

divide both sides by 4

x">"-1

the ">" means greater than or equal to, I just don't have that character on my keyboard

Step-by-step explanation:

so the answer is x is greater than or equal to -1

IN: (-∞,-1]

for number line: You would write the number line from -1-10  

then, you would put  a closed dot on negative one, with an arrow going to the right!

Hope this helped! <3

Answer:

-35% decrease in price.

Step-by-step explanation:

Type in "percentage decrease calculator" onto google and click on first result

Here's the equation

Answer:

Equivalent fraction: 45/100

Reduced fraction: 9/20

Decimal equivalent: 0.45

Step-by-step explanation:

Equivalent fraction: percentage is just out of 100. 45% is 45 out of 100, aka 45/100.

Reduced fraction is just simplifying both sides by the GCF. In this case, 5.

Decimal equivalent of a percentage is just dividing the numerator by the denominator, or taking the numerator or the percentage and placing the decimal point forward two digits.

Answer:

45|1000

Step-by-step explanation:

urjrbrbruw9qi1i818

Answer:

You cannot simplify 7/15 to a smaller fraction. But you could divide 7 by 15 to get a decimal.

Step-by-step explanation:

Answer:

you can't simplify the number 7

Answer:

umm what grade are you in???

144/9= 16!!!!!

Step-by-step explanation:

anyways wont act exactly like you and the answer is 16

Answer:5 and 1/16

Step-by-step explanation:

Answer:

awh i cant help u

Step-by-step explanation: