plsss help!!!!! #1 #2​

Answer:

x > -5/8

Step-by-step explanation:

Simplify by combining x and 4/5 and then moving 4 to the left side of x

-x * 4/5 + 3/10 < 8/10

-4x/5 + 3/10 < 8/10

Now we cancel the common factor of 8 and 10.

Factor 2 out of 8

-4x/5 + 3/10 < 2(4)/10

2 from 10

-4x/5 + 3/10 < 4/5

Now move all the terms not containing x to the right side

Lets subtract 3/10 from both sides

-4x/5 < 4/5 - 3/10

Now we multiply by 2/2 to write 4/5 with a common denomi.

-4x/5 < 4/5 * 2/2 - 3/10

Now write with a common denom of 10 and multiply by 1

-4x/5 < 4*2/5 * 2 - 3/10

5 by 2

-4x/5 < 4 * 2/10 - 3/10

Combine

-4x/5 < 4 * 2 - 3/10

Simplify the numerator by multiplying then subtracting

-4x/5 < 8 - 3/10

-4x/5 < 5/10

Cancel the common factor of 5 and 10...

-4x/5 < 5(1)/10

-4x/5 5* 1/5 * 2

-4x/5 < 1/2

Now we divide by -1

-4x/5)/-1 > 1/2)/-1

4x/5 > 1/2)-1

4x/5 > -1/2

Multiply both sides by 5 and cancel common factors. (5)

4x * 5 > -1/2 * 5

4x > -1/2 * 5

4x > -5/2

Now divide by 4 in each term

4x/4 > -5/2)/4

x > -5/2)/4

Multiply the numer by the reciprocal of the denom

x > -5/1 * 1/4

x > -5/4 * 2

x > -5/8

Answer:

yes

Step-by-step explanation:

see the attachement

A rectangular fraction model can be drawn based on this idea: Annie had a total of cookies 20 but she gave 9 cookies to her friends, how many cookies does she have?

A rectangular fraction model refers to using a rectangle and dividing it to represent and understand fractions. This might be easier than representing fractions by only using numbers.

The first step is to think about a possible situation or word problem. After this, you can draw the fraction model. For example:

For this, divide a rectangle in the total of parts (20) and color the total of parts that Annie has (11). This means the total of cookies she has is 11/20.

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here u go, if u need it clearer I will re write just tell me

Answer:10.4 or -0.4

Step-by-step explanation:

The explanation is in the attached file below

Answer:

25th term = 701

Step-by-step explanation:

see attached

have a great day :)

Answer:

y = -4x + 15

Step-by-step explanation:

slope of y = x/4 - 2 is 1/4

slope of line perpendicular to above line is -4

so y = -4x + b

use (4, -1)

-1 = -4(4) + b

b = 16 - 1 = 15

so

y = -4x + 15

Answer:

1.6

Step-by-step explanation:

area of a semicircle is A = pi * r^2/2

So pi*1^2/2

3.14/2

1.57079632679

Rounded to the nearest tenth

1.6

Answer:

a) 35m+26

Step-by-step explanation:

5(7m+7)-9

= 35m+35-9

=35m+26

Hope this helps!

Answer:

Step-by-step explanation:

5(7m + 7) - 9

= 5*7m + 5 * 7 - 9

= 35m + 35 - 9

= 35m + 26

answers: 1st, 2nd, and 4th choices

Answer:

D

Step-by-step explanation:

as the p value is 0.45 > 0.05 so the report that men over 6 feet tall earn more then men under 6 feet tall is accepted. So the salary differences are statistically signifcant

Answer:

-20

Step-by-step explanation:

x/5=3-7

x/5=-4

x=-4×5

x=-20

Answer:

18

Step-by-step explanation:

20% = .20

90 x .20=18

Hence, 18 kids own their own instruments

[RevyBreeze]

Step-by-step explanation:

the volume of the tank is

80×50×45 = 180,000 cm³

3/4 of that volume is

180000 × 3/4 = 135,000 cm³

so, we want to know how long it takes to fill 135,000 cm³.

the water intake flow is 9 l / minute.

now we need to know that a cube of 10 cm side length contains exactly 1 liter of water.

such a cube has the volume

10×10×10 = 10³ = 1000 cm³

so, 1000 cm³ = 1 liter.

and we need to fill 135,000 cm³.

how many times fit 1000 cm³ into 135,000 cm³ ?

135000/1000 = 135 times.

and that means it would take 135 minutes to fill it, if the flow was 1 l / minute.

but it is faster (9 times faster) : 9 l / minute

so, how many minutes ?

135 / 9 = 15 minutes

it takes 15 minutes to fill 3/4 of the tank.

Answer:

15 minutes

Step-by-step explanation:

The volume (V) of the tank is calculated as

V = lbh (l is the length, b the breadth and h the height (

here l = 80, b = 50, h = 45 , then

V = 80 × 50 × 45 = 180000 cm³

1 litre = 1000 cm³ , then

9 litres = 9 × 1000 = 9000 cm³

Divide the volume of the tank by 9000 for time in minutes

180000 ÷ 9000 = 20 minutes

It takes [tex]\frac{3}{4}[/tex] × 20 = 15 minutes to fill [tex]\frac{3}{4}[/tex] of the tank

Answer:

c.p= R.s 75 ,loss=R.s 9 solve it

Answer:

203,000

Step-by-step explanation:

You need to find the pattern first, so you need to subtract 213,000 from 209,000 to get 4,000. Now that is the pattern for 2 years we need it for 1 year. So divide 4,000÷2=2,000 for 1 year. Next, you need to multiply 2,000×3=6,000. That is the decrease of the population for 3 years. Finally, subtract 6,000 from 209,000.

Hope you get an A! <3

Answer:

total sum (s)= 6

probability of getting a 3 = 3÷6

= 1÷2

Step-by-step explanation:

probability of getting a 7 =0÷7

=0

probability of getting less than 5 =4÷6

2÷3

Put value of y in Equation 1 in Equation 2.

[tex] \looparrowright \sf y + 1 = - 4x[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf (x + 2) + 1 = - 4x[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf x + 2 + 1 = - 4x[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf x +3= - 4x[/tex]

[tex] \\ \\ [/tex]

[tex] \looparrowright \sf x + 4x= - 3[/tex]

[tex] \\ \\ [/tex]

[tex]\looparrowright \sf 5x= - 3[/tex]

[tex] \\ \\ [/tex]

[tex]\looparrowright \sf x= \dfrac{ - 3}{5} [/tex]

[tex] \\ \\ [/tex]

Let's find value of y :

[tex] \\ \\ [/tex]

[tex]\looparrowright \sf y=x+2[/tex]

[tex] \\ \\ [/tex]

[tex]\looparrowright \sf y= \dfrac{ - 3}{5} +2[/tex]

[tex] \\ \\ [/tex]

[tex]\looparrowright \sf y= \dfrac{ - 3 + 10}{5} [/tex]

[tex] \\ \\ [/tex]

[tex]\looparrowright \sf y= \dfrac{7}{5} [/tex]

Solution:

[tex]\looparrowright \sf \bigg( \dfrac{ - 3}{5} , \dfrac{7}{5} \bigg)[/tex]

Answer:

a. 9m + 8×$20 = $340

b. 9×$10.50 + 8×$10.50 = $178.50

Step-by-step explanation:

Its self-explanatory

Step-by-step explanation:

[tex]36 - {b}^{2} - {c}^{2} + 2bc[/tex]

Factor out -1

[tex] - ( - 36 + {b}^{2} + {c}^{2} - 2bc[/tex]

[tex] -( (b + c) { }^{2} - 36[/tex]

[tex] - (b + c + 6)( b + c - 6)[/tex]

Answer:

5

Step-by-step explanation:

[tex]\frac{25}{\sqrt{37-12} }[/tex]

= [tex]\frac{25}{\sqrt{25} }[/tex]

= [tex]\frac{25}{5}[/tex]

= 5

[tex]4+ \sqrt{6x + 4 = 8} [/tex]

[tex] \sqrt{6x + 4 = 4}[/tex]

[tex]6x + 4 = 16[/tex]

[tex]6x = 12[/tex]

[tex]x = \frac{12}{6} = 2[/tex]

Option C is correct, x=2 is the solution to the equation 4+√(6x+4)=8

Two or more expressions with an Equal sign is called as Equation.

The given equation is 4+√(6x+4)=8

We have to solve for x

Subtract 4 from both sides

√(6x+4)=4

Square on both sides

6x+4=16

Subtract 4 from both sides

6x=12

Divide both sides by 6

x=2

Hence, Option C is correct, x=2 is the solution to the equation 4+√(6x+4)=8

To learn more on Equation:

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#SPJ2

Answer:

21 degrees

Step-by-step explanation:

I'm assuming that the 0 is supposed to be theta, which I'm replacing with x to make it easier for me to type.

Because these angles are acute, we can use the fact that if two angles A and B are complementary, then sinA = cosB.

So we can get that x+4+3x+2=90

4x+6=90

4x=84

x=21

answer:

c. y = -1/2x + 1

steps-explanation:

given sample equation:

comparing to the formula of slope intercept form: y = mx + b

                                              [ where m is the slope and b is the y-intercept ]

we can determine here that the slope is 2 and 9 is the y-intercept.

but here we need only the slope.

making the slope perpendicular using: -1/m → 1/-2 → -1/2

formula:                  

using the formula:                     [ here known that y1 is -1 and x1 is 4 ]

Answer:

C)    y = -1/2x + 1

Step-by-step explanation:

Equation of a line in slope-intercept form:  y = mx + b

(where m is the slope (gradient) and b is the y-intercept)

The slopes of two perpendicular lines are negative reciprocals of each other.  So, if the line is perpendicular to y = 2x + 9, then the slope m of the new line will be -1/2.

Therefore, y = -(1/2)x + b

We are told that the line passes through point (4, -1).  

Substituting the found value for m the the point (4, -1) into point-slope form:

y - y1 = m(x - x1)

y - -1 = -(1/2)(x -4)

y = -(1/2)x + 1

Answer:

D) 57

Step-by-step explanation:

180 - 123

Answer: x < 18

Step-by-step explanation:

x - 2 < 16

We eliminate 2 to isolate the variable, x by adding 2 to both sides. -2 + 2 = 0.

x < 18

We can test this because 17 is less than 18. Pretend x = 17

17 < 18✅

Mason subtracted 2, instead of adding 2.

In order to graph this, put an open circle at 18, and the arrow should point to the left.

The amount of water in each pool at a particular time are illustrations of linear functions

For the first pool, we have the following parameters

So, the equation of the amount of water in the pool is:

y = 2164 + 31.75x

For the second pool, we have the following parameters

So, the equation of the amount of water in the pool is:

y = 2500 + 21.25x

When both pools have the same amount of water, we have:

2164 + 31.75x = 2500 + 21.25x

Collect like terms

31.75x - 21.25x = 2500 - 2164

Evaluate the like terms

10.5x = 336

Solve for x

x = 32

This means that they will have the same amount of water after 32 minutes

Substitute 32 for x in y = 2164 + 31.75x

This gives

y = 2164 + 31.75 * 32

y = 3180

Both pools will have 3180 liters at 32 minutes

Read more about linear functions at:

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a = 29 / 12

b = 56 / 24

c = 129 / 50

a = 2.42

b = 2.33

c = 2.58

b is cheapest, 24 for $56