8 A high-speed train travels at a maximum speed of 320 kilometres
per hour (km/h).
Work out the maximum speed of this train in metres per second (m/s).
Give your answer to the nearest whole number.

Volume of a cube = l³

                              = (11 in)³

                              = 1331 in³

Surface area of cube = 6a²

                                   = 6 (11 in)²

                                   = 726 in²

Answer:

Jerry is 11.75 years

Step-by-step explanation:

Let us first set up an equation

Let jerry's age be x

4x - 11 = 36 (equation set)

Now we need to slove the equation and find the value of x that is Jerry's age

4x - 11 = 36

Transpose

4x = 36 + 11

4x = 47

x = 47 ÷ 4

x = 11.75 years

Jerry is 11.75 years

Answer:

x+2

=1x+2

=3x.

it's soo easy.

Answer:

12 bags

Step-by-step explanation:

9×8=72 beads all together

72/6=12 bags of beads

Answer:

7 words per minute

Step-by-step explanation:

63 words = 9 mins

9 mins = 63 words

1 min = 63 words/9

1 min = 7

She can type 7 words per minute

-Chetan K

Answer:

7 words per minute

Step-by-step explanation:

1. To find the unit rate (words per minutes), let's set up two ratios:

2. Now, let's solve for x to find how many words she can type per minute.

Step 1: Cross-multiply.

Step 2: Divide both sides by 9.

Therefore, Christine can type 7 words per minute.

Answer:

10

Step-by-step explanation:

Answer:

if he is walking 10 miles then in 10 hours

Step-by-step explanation:

every 1 mile is 1 hour meaning every 10 miles is every 10 hours

Answer:

All that you have to do is plot -11.

Step-by-step explanation:

cause'

Answer:

3 raise to power -100

Step-by-step explanation:

If you like my answer than please mark me brainliest thanks

Answer:

Step-by-step explanation:

As 2x -38

x-19

now.

putting value in eq 1

X-Y-12

thus,19-Y =12

Y=7

Fiction books=X=19

Answer:

The answer to this question is graph B

Answer:

Yeah he/she correct I did that too and got it right

Step-by-step explanation:

Answer:

1.

what is asked? how far did she walk to the church?

what are given?

- the total distance from her house to the church: [tex]\frac{3}{4}km[/tex]

- the distance she rode to the church on a tricycle: [tex]\frac{1}{8} km[/tex]

what operation should be used? subtraction

what is the number sentence?

[tex]\frac{3}{4} -\frac{1}{8}=\frac{5}{8} km[/tex]

solution: [tex]\frac{5}{8} km[/tex]

2.

what is asked? how much cake did they eat in total?

what are given?

- amount Catherine ate: [tex]\frac{1}{3}[/tex]

- amount Bernard ate: [tex]\frac{3}{8}[/tex]

what operation should be used? addition

what is the number sequence? [tex]\frac{1}{3} +\frac{3}{8}=\frac{17}{24}[/tex]

solution: [tex]\frac{17}{24}[/tex] of the cake was eaten

3.

what is asked? how many kg of ground meat was left?

what is given?

-  the total amount of meat there was at the beginning: [tex]10\frac{4}{5}[/tex]kg

- amount of meat used:[tex]3\frac{2}{3}kg[/tex]

what operation should be used? subtraction

what is the number sentence? [tex]10\frac{4}{5} -3\frac{2}{3} =7\frac{2}{15} kg[/tex]

solution: [tex]7\frac{2}{15}kg[/tex] of meat was left

4.

what is asked? how far did she travel from home to school?

what is given?

- how far Jasmine travels by bus: [tex]6\frac{3}{8} km[/tex]

- how far she travels by tricycle: [tex]5\frac{2}{5} km[/tex]

what operation should be used? addition

what is the number sentence? [tex]6\frac{3}{8}+5\frac{2}{5} =11\frac{31}{40} km[/tex]

solution: [tex]11\frac{31}{40}km[/tex] traveled

5.

what is asked? how many meters of cloth were used?

what is given?

- amount of cloth used for pants:[tex]2\frac{3}{4} m[/tex]

- amount of cloth used for a skirt: [tex]1\frac{9}{10} m[/tex]

what operation should be used? addition

what is the number sentence? [tex]2\frac{3}{4}+1\frac{9}{10} =4\frac{13}{20} meters[/tex]

solution: [tex]4\frac{13}{20} meters[/tex] of cloth was used

*I wasn't sure how detailed the number sentence should be, like if work needed to be shown, so here is the image of the work

Answer:

using the formula( y2-y1/x2-x1 = m)

m= slope

9 - (-2)/-9 -2 =m

11/ -11 = m

m= -1( slope)

since m is also = y- y1/ x-x1

y - (-2)/ x- 2 = -1= y +2 / x -2 = -1 (cross multipy)

-1 (x -2) = y +2

-x +2 = y + 2

-x -y = 2 -2

-x - y = 0(multiply both sides by -1)

x + y = 0

Step-by-step explanation:

PLS MARK BRAINLIEST

Answer:

y = 50

Step-by-step explanation:

This requires the alternate interior angle theorem, which states that:

The alternate interior angle theorem states that if two parallel lines are cut by a transversal, then alternate interior angles are congruent.

Since 50 degrees is an alternate interior angle to y, y must be equal to 50 degrees.

So,

y = 50

Answer:

[tex]3 {a}^{2} + 3a + (- 3 {a}^{2} - 3a) \\ = 3 {a}^{2} - 3 {a}^{2} + 3a - 3a \\ = 0 \\ thank \: you[/tex]

Answer:

6 outfits

Step-by-step explanation:

6 x 5 = $30 + $40 = $70

Answer:

2x-10y=100

-8xy=100

xy=12

Answer:

i got 1.28

Step-by-step explanation:

Answer:

128 questions

Step-by-step explanation:

75%•x=96

[tex]\frac{75}{100}[/tex]•x=96

x=96•[tex]\frac{100}{75}[/tex]

x=128

Answer:

D.

therefore,A+B is equal to D

Answer:

( 5, 3 )

Step-by-step explanation:

I imagine you plug in the given ordered pair to the rule:

( x - 3, y + 9 )

( 2 - 3, 12 + 9 )   ( - is the same as going to the right, so it basically adds ).

                         ( + is the same as going to the right, so it basically subtracts ).

( 5, 3 )

Hopefully this helped!

Brainliest please?

Answer:

22.6

Step-by-step explanation:

102÷4 1/2=22.6

You can double check this by multiplying 22.6 with 4 1/2, which will give you the answer without it being rounded.

Answer:

uehen7hedhdsundoidnxkxhnixhdjdjndkxjdnkxjdd

Answer:

term 2- term1

7-2

3

term 3-term2

13-7

6

[tex]6[/tex]

Answer:

y=2x^2+4x−16

Step-by-step explanation:

Assume that the equation of the parabola is y=ax2+bx+c.

Since the parabola passes through the point (−4,0), then 0=16a−4b+c.

Since the parabola passes through the point (2,0), then 0=4a+2b+c.

Since the parabola passes through the point (1,−10), then −10=a+b+c. Thus, we have obtained the following system:

Solving it, we get that a=2, b=4, c=−16. Thus, the equation of the parabola is y=2x^2+4x−16.

The equation of a parabola is  y = -x² + x + 4 with x-intercepts at (-4,0) and (2,0) that passes through the point (1,-10).

A parabola can be represented by the equation:

y = ax² + bx + c

To find the equation of a parabola that has x-intercepts at (-4,0) and (2,0), we can set y equal to 0 and solve for x to find the x-intercepts:

0 = a(-4)² + b(-4) + c

0 = a(2)² + b(2) + c

Solving these equations for a and c gives us:

c = b(-4)

c = -2b

The parabola passes through the point (1,-10), we can substitute the values of x and y into the equation to solve for b:

-10 = a(1)² + b(1) + (-2b)

-10 = a + b - 2b

-10 = a - b

Substituting c = b(-4) into the equation gives us:

y = a x² + b x + b(-4)

Substituting a = -b and solving for b gives us:

y = (-b) x² + b x + b(-4)

y = -b(x² - x - 4)

Since the x-intercepts are at (-4,0) and (2,0), the coefficient of x², which is -b, must be positive. Therefore, we can set b = 1 to get the equation of the parabola:

y = -(1)(x² - x - 4)

y = -x² + x + 4

Thus, the equation of a parabola is y = -x² + x + 4.

Learn more about the parabola here:

brainly.com/question/4074088

#SPJ2

Answer:

217

hope that helped <3

Answer:

38=5x+3{corresponding angles}

or,38-3=5x

or,35=5x

or,35/5=x

or,7=x

therefore value of x=7

Answer:

S=45°

t=90°

Step-by-step explanation:

Y=Z=45

t=180-(45×2)=90

Answer:

the answer for 8) answer= 8

Answer:

D) 22

Step-by-step explanation:

B is the midpoint. The midpoint is the point in a line that breaks the line into two equal segments. With that info, we know that BC = AC.

So that means:

3x - 14 = x + 10

Now solve this equation.

3x - 14 = x + 10

+14. +14

3x = x + 24

-x

2x = 24

/2. /2

X = 12.

Now we know the value of x, insert the value into x + 10.

12 + 10 = 22

The answer is 22

Answer:

B) 12

Step-by-step explanation:

Because,

3x - 14 = x + 10

3x - x = 10 + 14

2x = 24

x = 12