13. Cynthia, Chris, and Lexi paint houses. Cynthia can paint a house in 6 hours. Chris
can paint the same house in 5 hours. The three working together can paint the house
in 2 hours. How many hours does it take Lexi to paint the house?

Answer:

To find the inverse, interchange the variables and solve for

y

.

f

−

1

(

m

)

=

m

x

−

b

x

Step-by-step explanation:

Answer:

bhai sorry bhai Ham Hindi Wale Hain English Nahin samajhte to please Ham bhi a question mat dena Humko is question ka answer Nahin patahai

The amount of money Calvin and Sasha have, is an illustration of equivalent expressions.

Calvin has exactly 13 quarters

From the question, we have:

[tex]\mathbf{Calvin = 0.25Q}[/tex]

[tex]\mathbf{Sasha = 0.05N + 0.01P + 0.10D}[/tex]

Calvin has the same number of quarters as Sasha has dimes.

So, we have:

[tex]\mathbf{Q = D}[/tex]

Sasha has $1.95 in coins that are not dimes.

So, we have

[tex]\mathbf{0.05N +0.01P = 1.95}[/tex]

They have the same amount of money i.e.

[tex]\mathbf{Calvin = Sasha}[/tex]

This gives

[tex]\mathbf{0.25Q = 0.05N + 0.01P + 0.10D }[/tex]

Substitute [tex]\mathbf{0.05N +0.01P = 1.95}[/tex]

[tex]\mathbf{0.25Q = 1.95 + 0.10D }[/tex]

Substitute [tex]\mathbf{Q = D}[/tex]

[tex]\mathbf{0.25Q = 1.95 + 0.10Q }[/tex]

Collect like terms

[tex]\mathbf{0.25Q -0.10Q= 1.95 }\\[/tex]

[tex]\mathbf{0.15Q= 1.95 }[/tex]

Divide both sides by 0.15

[tex]\mathbf{Q= 13 }[/tex]

Hence, Calvin has exactly 13 quarters

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Answer:

2

Step-by-step explanation:

Quadratic means degree 2

Answer:

hi

Step-by-step explanation:

I don't know it just makes sense

Answer: what question

Step-by-step explanation:

Step-by-step explanation:

[tex]\sf \leadsto \dfrac{5y - 2}{4(y + 2)} = \dfrac{1}{3}[/tex]

[tex]\sf \leadsto \dfrac{5y - 2}{4y + 8} = \dfrac{1}{3}[/tex]

[tex]\sf \leadsto 3(5y - 2) = 1(4y + 8)[/tex]

[tex]\sf \leadsto 15y - 6 = 4y + 8[/tex]

[tex]\sf \leadsto 15y - 4y = 8 + 6[/tex]

[tex]\sf \leadsto 11y = 14[/tex]

[tex]\sf \leadsto y = \dfrac{14}{11}[/tex]

Answer:y=14/11

Step-by-step explanation:

Answer:

The answer should be 22.6, 33.9, 56.5, and 90.4

Step-by-step explanation:

The 11.3 stands for the time it takes to make one burger. The h stands for how many burgers. So for every burger you make, you simply multiply by 11.3

Answer:

-4 1/2

Step-by-step explanation:

The expression that can be formed by the given sentence is 8x² - 5.

So, for the expression as follows:

Eight and a number squared decreased by 5 can be:

Now, let the number be 'x'.

Hence, the expression we obtain is:

Therefore, the expression that can be formed by the given sentence is 8x² - 5.

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Answer:

I'm not 100%, but d is my answer because in conic sections you're on the negative side and it's the only answer with a negative integer

Answer: x = 45 and y = 10

Step-by-step explanation: in the picture

Please give me a brainliest answer

Answer: the answer is 21

Step-by-step explanation:

Answer:

18

Step-by-step explanation:

70^2 = 4900 < 5607 < 6400 = 80^2

so sqrt(5607) is a two-digit number with tenth-digit 7

71^2 = 5041, 72^2 = 5184, 73^2 = 5329, 74^2 = 5476, 75^2 = 5625

so the smallest square bigger than 5607 is 75^2, which is 5625

so the number should ne 5625 - 5607 = 18

Answer:

3.30=90

17/1=17

90+17=107

Step-by-step explanation:

Answer:

(4,0)

4 is the X intercept

Step-by-step explanation:

3y = -2x + 8

3y - 8 = -2x

-2/3y + 4 = x

Answer:

153

Step-by-step explanation:

Angle AFE is 63 and Angle DFE is a 90 degree angle add them both up and you get 153

Answer:

16

Step-by-step explanation:

Answer:

the answer is 2,170,000

Step-by-step explanation:

round the 6 to 7 and make everything behind a zero so it is 2,170,000

Answer:

C

Step-by-step explanation:

If you look at the constant terms for each of them, ABD is 18, and only C is 14

Answer:

x [tex]\leq[/tex] 3

Step-by-step explanation:

[tex]\frac{1}{2}[/tex] - [tex]\frac{1}{4}[/tex]x [tex]\geq[/tex] - [tex]\frac{1}{4}[/tex]

the first step is to subtract [tex]\frac{1}{2}[/tex] from both sides of the equation.

[tex]\frac{1}{2}[/tex] - [tex]\frac{1}{4}[/tex]x [tex]\geq[/tex] - [tex]\frac{1}{4}[/tex]

-[tex]\frac{1}{2}[/tex]         - [tex]\frac{1}{2}[/tex]

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

-[tex]\frac{1}{4}[/tex]x [tex]\geq[/tex] - [tex]\frac{3}{4}[/tex]

then, divide both sides of the equation by - [tex]\frac{1}{4}[/tex].

x [tex]\leq[/tex] 3

(since we divided both sides by a negative number, to isolate x, the [tex]\geq[/tex] changed to [tex]\leq[/tex].)

Answer:

1/2 - 1/4x ≥ -1/4

multiply both sides by the l.c.m of the both sides(4)

4(1/2 - 1/4x )≥ -1/4 ×4

2 - x ≥ -1

Collect the like terms

-x ≥ -3

Divide both sides by -1

x ≤ 3(when you divide by a negative number the equality changes)

Answer:

56

Step-by-step explanation:

Answer:

Yes. good job :)

keep up the good work 0u0

Step-by-step explanation:

Answer:

827.5( to four significant figures)

Answer:

29000

Step-by-step explanation:

2000+900= 2900

2900x10= 29000

Answer:

C, 10^3

Step-by-step explanation:

To get from 22 to 22000, you need to times by 1000. The power in this case represents the amount of zeros added to a number. Hope this helped!

10³ multiply 22 by to get an answer of 22,000.

The correct option is (D)

A branch of mathematics known as algebra deals with symbols and the mathematical operations performed on them.

Variables are the name given to these symbols because they lack set values.

In order to determine the values, these symbols are also subjected to various addition, subtraction, multiplication, and division arithmetic operations.

Given:

We have to multiply 22 such that it gives 22, 000.

let the number that being multiplied be x.

So, 22x = 22000

x= 22000/22

x= 1000

x= 10³

Hence, 10³ multiply 22 by to get an answer of 22,000.

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Range: lowest possible y-value to the highest possible y-value

In this case, the graph spans from -4 to 1, taking on all of the y-values between those two points. But, the graph also has a straight line at y=3.

Range: -4 < y <= 1 or {3}

Hope this helps!

Answer:

[tex]\huge\boxed{\sf x\° = 31.8\°}[/tex]

Step-by-step explanation:

Using one of the trigonometric ratios.

sin x° = opposite / hypotenuse

Where: opposite = 39, hypotenuse = 74

sin x° = 39/74

x° = sin⁻¹ 39 / 74

x° = 31.8°

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

Answer:

use the EQUATION of Sine Cosine Tangent rule

Step-by-step explanation:1

1.Do the pythagoras  theorem

2.use the equation

i guess you can take it from here

Mark me as brainiest if you find this helpful a bit

Answer:

X = 20

Step-by-step explanation:

Hope this helps! If you need the explanation, let me know. Pls give brainliest!

Answer:

[tex]{20}^{o} [/tex]

Step-by-step explanation:

hint alternate angles are equal,

the angle portrayed in the diagram are alternate angles ,ie equal,

for an equation equating the two angles then solve for x

ie,

[tex]3x = 2x + 20 \\ 3x - 2x = 20 \\ x = 20[/tex]