Help me plz !!!!!!!!!!!!!!!

Help Me Plz !!!!!!!!!!!!!!!

Answers

Answer 1

Answer:

A. 2/3 book/hour

Step-by-step explanation:

rewrite the fractions as a decimal if it can make it easier for you (0.5 book/0.75 hours) then divide which is 2/3 book/hour


Related Questions

what is 91,007,500 in scientific notation?

Answers

Answer:

Step-by-step explanation:

the scientific notation of 91,007,500

9.10075 x 10^7

BC = 4x + 2 AB = 8x + 8 and AC = 22 Find BC

Answers

Answer:

BC = 6.8

Step-by-step explanation:

The distance from A to B, then from B to C, is the same distance as from A to C.

Thus,

AB + BC = AC

AB = 8x + 8

BC = 4x + 2

AC = 22

AB + BC = AC

(8x + 8) + (4x + 2) = 22

Expanding the parenthesis:

8x + 8 + 4x + 2 = 22

8x + 4x + 8 + 2 = 22

12x + 12 = 22

Subtracting 12 from both sides:

12x = 10

Dividing both sides by 12:

x = 10/12 = 1.2

x = 1.2

We're looking for BC. As we know,

BC = 4x + 2

Let's now put in x = 1.2 into this equation:

BC = 4x + 2

BC = 4 * 1.2 + 2

Since 4 * 1.2 is 4.8:

BC = 4.8 + 2

BC = 6.8

Answer: BC = 6.8

The square root of 130
falls between _____
and _____
but it's closest to _____

Answers

Answer:

11 and 12, closest to 11

Step-by-step explanation:

The square root of 130 falls between 11 and 12

Since 11 squared is 121 and 12 squared is 144.

130 is closer to 121, making it closer to 11 than to 12.

Hope this helps :)

At the fair the ratio of male to females was 8:6. If there are 112 people at the fair how many males are there?

Answers

Answer:

64

Step-by-step explanation:

Let the common multiplier of the given ratio be x.

Therefore,

Number of males = 8x

Number of females = 6x

[tex]8x + 6x = 112 \\ 14x = 112 \\ x = \frac{112}{14} \\ x = 8 \\ number \: of \: males = 8x = 8 \times 8 = 64 \\ [/tex]

Find the parabola through
(

7
,

39
)
(
-
7
,
-
39
)
with vertex
(

4
,

12
)

Answers

Answer:

y = - 3x² - 24x - 60

Step-by-step explanation:

The equation of a parabola in vertex form is

y = a(x - h)² + k

where (h, k) are the coordinates of the vertex and a is a multiplier

Here (h, k) = (- 4, - 12 ), thus

y = a(x + 4)² - 12

To calculate a substitute (- 7, - 39) into the equation

- 39 = a(- 7 + 4)² - 12 ( add 12 to both sides )

- 27 = 9a ( divide both sides by 9 )

- 3 = a

y = - 3(x + 4)² - 12 ← in vertex form

Expand (x + 4)²

y = - 3(x² + 8x + 16) - 12

   = - 3x² - 24x - 48 - 12

y = - 3x² - 24x - 60 ← in standard form

   = - 3(x²

express the following number in standard form a question 425000​

Answers

Forty-two thousand five thousand

Solve the following inequality: 9x+2/3(−7x+6)−1≥2

Answers

Answer:

Step-by-step explanation:

3(9x - 14/3x + 4 - 1 ≥ 2)

27x - 14x + 12 - 3 ≥ 6

13x + 9 ≥ 6

13x ≥ -3

x ≥ -3/13

Answer:

x ≥ - [tex]\frac{3}{13}[/tex]

Step-by-step explanation:

Given

9x + [tex]\frac{2}{3}[/tex](- 7x + 6) - 1 ≥ 2

Multiply through by 3 to clear the fraction

27x + 2(- 7x + 6) - 3 ≥ 6 ← distribute and simplify left side

27x - 14x + 12 - 3 ≥ 6

13x + 9 ≥ 6 ( subtract 9 from both sides )

13x ≥ - 3 ( divide both sides by 13 )

x ≥ - [tex]\frac{3}{13}[/tex]

Solve:
3(x - 2) = 18

Answers

Answer:

Standard form:

3x − 24 = 0

Factorization:

3(x − 8) = 0

Solutions:

x = 24

3

= 8

Step-by-step explanation:

Hope this helps? :))

[tex]\large\tt Step-by-step~explanation:[/tex]

To solve for x, we have to isolate the variable.

[tex]\tt Step~1:[/tex]

First, we distribute 3 to (x - 2) because when there are parentheses with terms inside it next to another term, then we have to multiply them together.

[tex]\tt 3*x=3x\\3*-2=-6\\3x-6=18[/tex]

[tex]\tt Step~2:[/tex]

Next, we add six on the left side of the equation to cancel out - 6. We also add 6 to the right, because we have to do whatever we do on both sides of the equation.

[tex]\tt 3x-6(+6)=18(+6)\\3x=24[/tex]

[tex]\tt Step~3:[/tex]

Finally, we divide both sides by 3 to isolate x and get our answer.

[tex]\tt \frac{3x}{3}=x\\\frac{24}{3}=8\\x=8[/tex]

[tex]\large\boxed{\tt Our~final~answer: ~x=8}[/tex]


[tex]( \frac{8}{27} ) ^{ \frac{1}{3} } [/tex]
= ?​

Answers

Answer:

2/3

Step-by-step explanation:

Simplify the following:

(8/27)^(1/3)

Hint: | For all n>=0, (m/n)^(1/3) = (m^(1/3))/(n^(1/3)).

(8/27)^(1/3) = (8^(1/3))/(27^(1/3)):

(8^(1/3))/(27^(1/3))

Hint: | Simplify radicals.

27^(1/3) = (3^3)^(1/3) = 3:

(8^(1/3))/3

Hint: | Simplify radicals.

8^(1/3) = (2^3)^(1/3) = 2:

Answer: 2/3

An article was sold for Rs 30
at a loss of 24%, what would
have been sale price, had it
been sold at 17% loss.​

Answers

Answer:

Rs. 32.77

Step-by-step explanation:

At a loss of 24% sale price = Rs. 30At a loss of 17% sale price = ?

----------

Finding cost price:

Sale price = cost - loss

If cost = x:

x - 24% = 300.76x = 30x = 30/0.76x ≈ 39.48

SP at a loss of 17%:

39.48 - 17% = 39.48*0.83 ≈ 32.77

The coordinates of point T are (0,3). The midpoint of ST is (1, -5). Find the coordinates of point S.

Answers

Answer:

M(3/2,−9/2)

explaination:

the midpoint of a segment is the average values of the endpoint coordinates ie midpoint of ( x 1 , y 1 ) , ( x 2 , y 2 ) M ( x 1 + x 2 2 , y 1 + y 2 2 ) we ahve ( 3 , − 6 ) , ( 0 , − 3 ) ∴ M ( 3 + 0 2 , − 6 + − 3 2 ) M ( 3 2 , − 9 2 )

Which of the following statements contain a variable? Check all that apply.

A. The length of the rope.
B. She arrived at 2 o'clock.
C. Half the height of the building.
D. There are 12 inches in a foot.

Answers

Answer:

A and C

Step-by-step explanation:

Took the test :/

If a = 5 and b = -3, what is the value of 2b/b^2-a

Answers

Answer:

-4.33333

Step-by-step explanation:

I searched it up on google but here you go

K ( -3, 7 ), and L ( 8, 7 what is the slope?

Answers

7-7
___
8-(-3)




0
_
11


Slope =0

5.9= -4+×
help me solve this​

Answers

X=9.9 hope this helped

Which equation represents the data: m = -3, b = 5

Answers

The answer is Y= -3x +5

In which Quadrant is the point (4, -2) located?
Quadrant 3
Quadrant 1
Quadrant 4
0 Quadrant 2

Answers

Answer:

Quadrant 4

Step-by-step explanation:

We go to the x-axis first and put a point on number 4, second we move that point along the y-axis till number -2

which is located in the 4th quadrant

Answer: Quadrant 4

Step-by-step explanation: Since the rule for Quadrant 4 is (+, -) it will be located there because 4 is a positive number and -2 is a negative number.

The temperature at 2:00 pm is 27 degrees at 2 :00 the temperature has fallen to -4 degrees what is the difference in temperature from 2:00 pm to 2:00 am ?

Answers

Answer:

31 degrees

Step-by-step explanation:

Difference in temperature from 2:00 pm to 2:00 am = 27 - (-4) = 27 + 4 = 31 degrees

Solve and graph the following compound inequality. (SHOW YOUR WORK) 3x + 4 ≤ −x − 5 ≤ 12

Answers

[tex]\frac{9}{4}[/tex]Answer:

[-17, -[tex]\frac{9}{4}[/tex]

graph would be closed circle, shaded to the left and the point placed a little over -2 bc -9/4   THEN another closed circle on -17 shaded to the right so they meet in the middle        

Step-by-step explanation:

-x-5 greater than or equal to 3x+4

-x-5 ≤ 12

x ≤ -9/4

-z-5 ≤ 12 ===== x > -17 (make sure to put a line under the >)

If it takes a company 4 hours to build 1,300 cell phones, at the same rate it will
take the company n hours to build 39,000 cell phones.

Answers

39,000/1,300 = 30. 30 x 4 = 120 Hours

3(2x - 4) + (3x + 1) = 5x + 21 -(x +1)

Answers

Answer:

x=6.2

Step-by-step explanation:

3(2x - 4) + (3x + 1) = 5x + 21 -(x +1)

6x-12+3x+1=5x+21-x-1

combine like terms:

9x-11=4x+20

move variables to same side by sub 4x and add 11

5x=31

x=6.2

Please answer! Thank you in advanced

Answers

Answer: D

Step-by-step explanation:

To solve this problem, let's go through each pair to see if they are perpendicular lines.

A. Incorrect

These are parallel lines. We know this because they have the same slope and different y-intercept.

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

B. Incorrect

These are not perpendicular lines. The slope is [tex]-\frac{1}{m}[/tex]. The slope of the pair doesn't match this property.

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

C. Incorrect

These are not perpendicular lines. The slope is [tex]-\frac{1}{m}[/tex]. The slope of the pair doesn't match this property.

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

D. Correct

These are perpendicular lines. The slope is [tex]-\frac{1}{m}[/tex]. The slope of the pair matches this property.

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

E. Incorrect

These are not perpendicular lines. You can see that y=5 and x=5. The slope is [tex]-\frac{1}{m}[/tex]. The slope of the pair doesn't match this property.

Solve the equation 5x+3÷4=7. Explain and justify each step in your solution process.

Answers

5x+3÷4=7
5x+.75=7
-.75 -.75
5x = 6.25
divide by 5 on both sides
x= 1.25

please mark brainliest

Neena is listening to a song. It has a consistent beat. She counts 11 beats in
1 seconds. What is the constant of proportionality for the relationship of beats
to minutes? Show your work.

Answers

Answer:

11beats / 1 second = 660 beats /1 minute

if f(x)= -x^2 - 1, and
g(x)=x + 5, then

g(f(x))=___x^2+___x+___

Answers

Answer:

Step-by-step explanation:

g(f(x))

g(-x^2 - 1)

-x^2 + 0x + 4= -x^2 + 4

Can someone plz help with both of these

Answers

Answer:

Domain: (-5<x<-2) (1<x≤3]

Range: (-3<x<4) [-1≤x<2)

Step-by-step explanation:

(Explained another post by same asker)

(also this isnt interval notation, you would remove the <,≤, and x from it and keep the parenthesis and brackets were I put there were)

Does anybody know how to answer this?

Answers

Answer:

Step-by-step explanation:

√a^2 + b^2 =a+b

√ (a+b)^2 =a +b

The square root and the square cancel making

√a^2+b^2=a+b

What is the midpoint of points (3.9) and (1.-7)?

Answers

Answer:

Answer is (2,1)

Step-by-step explanation:

The Midpoint formula is simply (x2+x1)/2, (y2+y1/2)

Just gotta plug in the points!

Hope this helps!

how does a dilation change a figure

Answers

It can make the shape bigger or smaller

8+1/2(12)=x

Solve please

Answers

Answer

14

you have to simplify

8+1/2(12)

14

8+1=9/2(12)=24
9/24 =0.375
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