The water supply uses huge concrete pipes to drain stormwater.

a Find the external radius of a pipe.

b Find the Internal radius of a pipe.

c Find the volume of concrete necessary to make one pipe.
​

Answer:

I believe it's option 3

explanation: you times inside by 3

Answer:

option 1.

Step-by-step explanation:

(4a⁵b)³ = 4³ * (a⁵)³ * b³

           [tex]= 64 *a^{5*3} * b^{3}\\\\= 64a^{15}b^{3}[/tex]

Answer:

There are 8 males in the class and 42 females.

Step-by-step explanation:

This question can be solved using a system of equations.

I am going to say that:

x is the number of females.

y is the number of males.

Class of 50 students

This means that [tex]x + y = 50[/tex]

The number of females is 2 more than 5 times the number of males.

This means that [tex]x = 5y + 2[/tex]

So, finding y, the number of males:

[tex]x + y = 50[/tex]

[tex]5y + 2 + y = 50[/tex]

[tex]6y = 48[/tex]

[tex]y = \frac{48}{6}[/tex]

[tex]y = 8[/tex]

Females:

[tex]x = 5y + 2 = 5*8 + 2 = 42[/tex]

There are 8 males in the class and 42 females.

Answer:

it would be the second answer

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Answer:

x = 1

y = 10

(1,10)

hope that helps :)

Answer:

37

Step-by-step explanation:

I saw it there in the picture

Answer:

m=2

Step-by-step explanation:

use the slope formula m=y2-y1/x2-x1

Points: (0,4) (-2,0)

m=0-4/ -2-0

m=-4/-2

m=2

Answer:

195 miles

Step-by-step explanation:

Answer:

195 miles.

Step-by-step explanation:

In 1 hour Bob drove = 65 miles

In 3 hours, Bob drove = 3 * 65 = 195 miles.

Hope it will help :)

Answer: 375

hope this helps :D

Step-by-step explanation:

225/45=5

5=1%

5 times 74 equals 375

Answer:

Step-by-step explanation:

Here you go mate

Step 1

-3x-7<11  Equation/Question

Step 2

-3x-7<11  Simplify

-3x-7<11

Step 3

-3x-7<11  Add

-3x<18

Step 4

-3x<18  Divide by 3

answer

x>-6

Hope this helps

Answer:

Number of catfish = 28

Step-by-step explanation:

Let the number of catfish = c

Number of angle fish = c + 6

Number of guppies = 4*(c + 6) = 4c + 4*6 = 4c + 24

Total fishes = 198

c + c + 6 + 4c + 24 = 198           {Combine like terms}

c + c +4c + 6 + 24 = 198

                6c + 30 = 198              {Subtract 30 from both sides}

                     6c    = 198 - 30

                     6c   = 168

                       c = 168/6           {Divide both sides by 6}

                       c = 28

Answer:

Brand A

Step-by-step explanation: Brand A because y=50x+100 and that equals 150x. For brand B y=25x+200 and that equals 225x. So Brand A is lower.

Answer:

∠G ≅  ∠C

∠F ≅  ∠D

∠H ≅  ∠E

Step-by-step explanation:

Answer:

10 min.

Step-by-step explanation:

Answer:

3.33

Step-by-step explanation:

[tex] \huge \blue{solution}[/tex]

[tex] \bold \red{ \frac{x}{3} - \frac{x}{4} = \frac{x}{6} }[/tex]

[tex] \bold \red{ \frac{4x + 3( - x)}{3 {2}^{2} } = \frac{x}{6} }[/tex]

[tex] \bold \red{ \frac{4x - 3x}{3 {2}^{2} } = \frac{x}{6} }[/tex]

[tex] \bold \red{\frac{x}{3 {2}^{2} } = \frac{x}{6} }[/tex]

[tex] \bold \red{ - x = 0}[/tex]

[tex] \bold \red{x = 0}[/tex]

Answer:

SA:48 V:144

Step-by-step explanation:

Answer:

937.5

Step-by-step explanation:

150%=150/100

Equation:150/100 x 625

937.5

Answer:

4.2 cm

Step-by-step explanation:

Given

Area of parallelogram (A) = 4.2 cm²

base (b) = 1.75 cm

Height (h) = ?

We know

A = b * h

4.2 = 1.75 * h

h = 4.2 / 1.75

H = 2.4 cm

Hope it will help

Answer: 27 units

Step-by-step explanation: I just did the test and Got it right

Answer:

The answer is 6

Step-by-step explanation:

First nothing us negative, so multiply 8/4 times 9/3,which is 72/12=6, 6×12 is 72.The reason why it is 9/3 instead of 3/9 is because you are dividing so KCF, keep change flip.

Answer:

Positive 6

Step-by-step explanation:

What you do is:

8 x 9 = 72

-4 x (-3) = 12

72 / 12 = 6

Hope this helps!

- 28allemm

Answer:

the answer to your question is h = 10

Answer:

We think you wrote:

-24>6/7(h-8)

This deals with linear inequalities.

Overview

Steps

Topics

Links

1 solution(s) found

See steps

Step by Step Solution

More Icon

Rearrange:

Rearrange the equation by subtracting what is to the right of the greater than sign from both sides of the inequality :

-24-(6/7*(h-8))>0

Step by step solution :

STEP

1

:

6

Simplify —

7

Equation at the end of step

1

:

6

-24 - (— • (h - 8)) > 0

7

STEP

2

:

Equation at the end of step 2

6 • (h - 8)

-24 - ——————————— > 0

7

STEP

3

:

Rewriting the whole as an Equivalent Fraction

3.1 Subtracting a fraction from a whole

Rewrite the whole as a fraction using 7 as the denominator :

-24 -24 • 7

-24 = ——— = ———————

1 7

Equivalent fraction : The fraction thus generated looks different but has the same value as the whole

Common denominator : The equivalent fraction and the other fraction involved in the calculation share the same denominator

Adding fractions that have a common denominator :

3.2 Adding up the two equivalent fractions

Add the two equivalent fractions which now have a common denominator

Combine the numerators together, put the sum or difference over the common denominator then reduce to lowest terms if possible:

-24 • 7 - (6 • (h-8)) -6h - 120

————————————————————— = —————————

7 7

STEP

4

:

Pulling out like terms :

4.1 Pull out like factors :

-6h - 120 = -6 • (h + 20)

Equation at the end of step

4

:

-6 • (h + 20)

————————————— > 0

7

STEP

5

:

5.1 Multiply both sides by 7

5.2 Divide both sides by -6

Remember to flip the inequality sign:

Solve Basic Inequality :

5.3 Subtract 20 from both sides

h < -20

Inequality Plot :

5.4 Inequality plot for

-0.857 X - 17.143 < 0

One solution was found :

Answer:

C) 70

Step-by-step explanation:

Since they can only spend a maximum of $600, we can fill that in for c. Now, we can solve the equation for n.

600 = 8n + 40

~Subtract 40 to both sides

560 = 8n

~Divide 8 to both sides

70 = n

Best of Luck!

Answer:

Step-by-step explanation:

first, your answer will be negative,

x^12*(2y)^3=x^12(8y^3)

denominator= -x^2*y^12

after we divide them=- 8 x^10/y^9

choice E

Answer:

5/4 or 1 1/4

Step-by-step explanation:

Answer:

w = 18

Step-by-step explanation:

w+6 = 2(w-6)

w+6 = 2w-12

2w-w = 6+12

w = 18

hope it helps

Answer:

[tex] \huge \boxed {w = 18}[/tex]

Step-by-step explanation:

Distribute 2 in the bracket.

[tex]w + 6 = 2w - 12[/tex]

A constant and variable cannot add up or subtract each others. Therefore, move the same term to the same side.

[tex]12 + 6 = 2w - w \\ 18 = w[/tex]

Answer Check

Substitute w = 18 in the equation.

[tex]18 + 6 = 2(18) - 12 \\ 24 = 36 - 12 \\ 24 = 24[/tex]

Therefore w = 18 is the correct answer.

Answer:

x = 1.7

Step-by-step explanation:

Given

-½ + 5x = 8

Required

Find x

-½ + 5x = 8

Multiply both sides by 2

-1 + 10x = 16

Collect like terms

10x = 16 + 1

10x = 17

Divide both sides by 10

x = 1.7

Answer:

8, and 2

Step-by-step explanation:

(btw the three in the question is suppose to be a 2)

but those two are the only ones that you can add and the equation still equal 8.  

<3

Answer:

(3,1)

value x is 3

value y is 1

Answer:

I am pretty sure it is A because it is -5 and then +2

Step-by-step explanation:

I hope this is right

I hope this helps you...

Answer:

option A

Step-by-step explanation:

the arrow goes from 0-5 then another from 5-3

Find the tip:

$120 * 18% =

$120 * 0.18 =

$21.60

Find the tax:

$120 * 6% =

$120 * 0.06 =

$7.20

Find the answer:

$120 + $21.60 + $7.20 =

$148.80