Dana bought 300 straws. The straws were sold in packages of 30. How many packages did Dana buy?

Step-by-step explanation: need to find a basis for the solutions to the equation Ax = 0. To do ... From this we can read the general solution, x = ⎡. ⎢ ... two vectors are clearly not multiples of one another, they also give a basis. So ... 4.4.14 The set B = {1 − t2,t − t2,2 − 2t + t2} is a basis for P2. ... x1(1 − t2) + x2(t − t2) + x3(2 − 2t + t2)=3+ t − 6t2.

Answer:

The answer is x= -5 1/4

Step-by-step explanation:

Let's solve your equation step-by-step.

2/3x−4 1/2=−8

Step 1: Simplify both sides of the equation.

2/3x+−9/2=−8

Step 2: Add 9/2 to both sides.

2/3x+−9/2+9/2=−8+9/2

2/3x=−7/2

Step 3: Multiply both sides by 3/2.

(3/2)*(2/3x)=(3/2)*(−7/2)

x=−21/4

Answer:

x= −5 1/4

Answer:

-2

Step-by-step explanation:

[tex]\frac{-7-5}{3-(-3)}= \frac{-7+-5}{3+3} =\frac{-12}{6} =-2[/tex]

Answer:

12/-6 or -2

Step-by-step explanation:

-3-3= -6 (run)

5-(-7)= 12(rise)          

        12/-6 rise over run

Answer:

67

Step-by-step explanation:

its going up by 5 each time. i just counted that until i got to the thirteenth number. it also seems to be going with the numbers with a "2"or "7" in it. hope this helps!

Answer:67

Step-by-step explanation:

7+5=12 12+5=17 17+5= 7,12,17,22,27,32,37,42,47,52,57,62,67

Answer:

No Solutions

Step-by-step explanation:

Step-by-step explanation:

8. 3x + 2 < or = 5

3x < or = 5 - 2

3x < or = 3

x < or = 1

0 and 1 you have to look at the conditions x ...W

Answer:

Since length is three times, hence it is 6 inches.

let the width be x.

then, length= 3x

perimeter= 16 inches.

perimeter of a rectangle = 2( L+B)

2(3x+x)=16.

3x+x= 16÷2

4x= 8

x= 2

since length=3x

hence, 3×2= 6 inches

Answer:

y = 3x + 10

Step-by-step explanation:

Given that,

Slope = 3

y intercept = 10

We need to write an equation of a line.

The slope-intercept form of a linear equation is given by :  

y = mx + b

Where

m is slope and b is y-intercept

Putting all the given values,

y = 3x + 10

Hence, the required equation is "y = 3x + 10"

answer is a or b

explanation

Answer:

La función resultante es una función a trozos:

[tex]C_{T}(x) = \left\{\begin{array}{cc}100+0.15\cdot x,\,0\le x \le 400\\112+0.12\cdot x,\,x> 400\\\end{array}[/tex]

Step-by-step explanation:

El coste total de la electricidad suministrada ([tex]C_{T}[/tex]), medida en pesos, es la suma del coste fijo ([tex]C_{F}[/tex]) y el coste variable ([tex]C_{V}[/tex]), medidas en pesos.

[tex]C_{T} = C_{F}+C_{V}[/tex] (1)

Ahora, tenemos que el coste fijo es $ 100 mensuales, así:

[tex]C_{F} = \$ \,100[/tex] (2)

Y el coste variable considera que se cobra 15 centavos por kilowatt-hora para los primeros 400 kilowatts-hora y 12 centavos por kilowatt-hora para cada kilowatt-hora que pase de 400 kilowatts-hora en el mes:

(i) Menos o igual que 400 kilowatts-hora:

[tex]C_{V} = 0.15\cdot x[/tex] (3)

Donde [tex]x[/tex] es la electricidad suministrada en kilowatts-hora.

(ii) Mayor que 400 kilowatts-hora:

[tex]C_{V} = 0.15\cdot (400)+0.12\cdot (x-400)[/tex]

[tex]C_{V} = 12+0.12\cdot x[/tex]

La función resultante es una función a trozos:

[tex]C_{T}(x) = \left\{\begin{array}{cc}100+0.15\cdot x,\,0\le x \le 400\\112+0.12\cdot x,\,x> 400\\\end{array}[/tex]

Answer:

d- all students from each grade

Step-by-step explanation:

Answer:

D, all students in each grade.

Step-by-step explanation:

If you did a random sample from the students in the speech club it will be biased because they will probably all say giving speeches because they are in the speech CLUB. You cannot do the teahcers because their answers will also be biased. If you do all the boys in each grade it will be biased only to what boys like and not girls or any other student in the grade. Therefore, using the process of elimination, the answer is D, you should take a random sample of all the students in each grade.

Answer: What I am going to do with you is first at least TRY and show the picture in which you tried. If i see that's wrong I will explain to you

Step-by-step explanation:

Answer:

y = 42 - 6 x

Step-by-step explanation:The slope-intercept formula is:

y = m x + b,

or: y = b - m x, since the rate is negative.

For the 1st formula we have: y = 30 and x = 2

For the 2nd formula: y = 12 and x = 5 ( because: 5 = 2 + 3, or : 3 minutes later, which can be confusing  )

30 = b - 2 m

12 = b - 5 m

--------------------

b = 30 + 2 m

12 = 30 + 2 m - 5 m

3 m = 18

m = 18 : 3 = 6

b = 30 + 2 * 6 = 30 + 12 = 42

y = 42 - 6 x

Answer:

225 pages in 75 days. hope this helped!

Step-by-step explanation:

Answer:

75*3 or 225

Step-by-step explanation:

3 pages per day the 75 days it's 75*3 which is 225

Hope this helps plz mark brainliest if correct :D

Answer:

7.17 by 7.17 by 3.58

Step-by-step explanation:

Since the rectangular box is square based, the total surface area is expressed as;

S = x²+2xh+2xh (the top is opened)

S = x² + 4xh ..... 1

x is the side length of the square

h is the height of the box

Also the volume V = x²h

Given V = 184

184 = x²h

h = 184/x² .... 2

Substitute 2 into 1;

S = x² + 4xh

S = x² + 4x(184/x²)

S = x² + 4(184/x)

S = x² + 736/x

Since we need a dimension that will minimize the surface area of the box then, dS/dx = 0

dS/dx = 2x -736/x²

0 = 2x -736/x²

multiply through by x²

0 = 2x³- 736

2x³ = 736

x³ = 736/2

x³ = 368

x = ∛368

x= 7.17 in

Since V = x²h

184 = 7.17²h

h = 184/7.17²

h = 184/51.4089

h = 3.58 in

Hence the dimensions of the box should be to minimize the surface area of the box are 7.17 by 7.17 by 3.58

Answer:

-x + 23

Step-by-step explanation:

you add like terms together, so 2x - 3x = -x

then 15+8 is 23

so you're left with -x+23

Answer:

dn

Step-by-step explanation:

Answer:

B:3=a(-1-6)(-1+5)

Step-by-step explanation:

The zeroes are 6 and -5 so we can write it as y=a(x-6)(x+5)

Now the point(-1,3) is on the line so substituting for x and y:

3=a(-1-6)(-1+5)

Pls mark brainliest

Answer:

The answer is 3 = a(−1 − 6)(−1 + 5)

Step-by-step explanation:

I took the quiz and got this correct and it makes the most sense.

Answer:

13

Step-by-step explanation:

9+4=13

Answer:

Frazer is the 8kg and Tyler is 15 kg.

Step-by-step explanation:

Total 23kg. Take away the 7kg, that Tyler weighs more, is 16.

Half the 16 to get 8.

please mark as the brainliest

Tyler and frazer weigh a total of 23kg then Frazer weighs 8 kg and Tyler weighs 15 kg.

Now assume Frazer's weight as x.

According to the problem, Tyler is 7kg heavier than Frazer.

Hence, Tyler's weight will be x + 7.

Now We know that the total weight of both of them is 23 kg.

Therefore, the equation will be:

x + (x + 7) = 23

Simplifying the equation, we get:

2x + 7 = 23

Now, subtracting 7 from both sides of the equation, we get:

2x = 16

Dividing both sides by 2,

x = 8

So, Frazer weighs 8 kg.

Now, we can calculate Tyler's weight as:

x + 7 = 8 + 7 = 15 kg

Therefore, Tyler weighs 15 kg.

Learn more about equations here;

https://brainly.com/question/25180086

#SPJ2

Answer:

8 adults

Step-by-step explanation:

1.) $78 - $6 = $72

2.) $72/$9 = 8

Answer:

0.01533036946190

Step-by-step explanation:

10÷652.3

0.01533036946190

Answer:

The answer is -17.

Step-by-step explanation:

-17+(-11)+12=

-17+(-11)=-28+12= -16

Answer:

the answer is -15 so this statement is false sry if I didn't answer what u needed

Step-by-step explanation:

The way I figure it out is by a timeline but with numbers. zero goes in the middle and numbers going right are and numbers going left are negitive.  

Answer:

24+21

Step-by-step explanation:

you multiply both the numbers in the parentheses by 3

Answer:

Step-bypass you have to do it on the

Answer:

the anser would be the second one i think hope it helps please mark brailiest

Step-by-step explanation: