Please help with this math problem ASAP! I will give brainliest!

Answer:

x=6

Step-by-step explanation:

5x-7=23

5x-7 +7=23+7

5x=30

30/5=6

x=6

Here's the solution in attachment :

Answer:

D.

Step-by-step explanation:

Answer:  Let the 2 numbers be x and  

sum of two numbers is 28....Eq 1:  x + y = 28

sum of 6 times the 1st number and 3 times the 2nd number is 105....Eq 2:  6x + 3y = 105

Rearrange Eq 1 to solve for x.

x + y = 28

x = 28 - y  --> Substitute into Eq 2, you get

6(28 - y) + 3y = 105

168 - 6y + 3y = 105

-3y = -63

y = -63 / -3 = 21

Now solve for x using Eq 1.

x = 28 - y = 28 - 21 = 7

hope  it helped

Step-by-step explanation:

Answer:

the answer is: y= -x²+6x+2

Step-by-step explanation:

(1 - cos²A) (1 + tan²A) = tan²A

(sin²A)(sec²A) = tan²A

(sin²A)(1/cos²A) = tan²A

(sin²A)/(cos²A) = tan²A

tan²A = tan²A → Proved

Step-by-step explanation:

So, this way we can do. Thank you!

Answer:

bru im confused

Step-by-step explanation:

Answer:

C

Step-by-step explanation:

because I think it makes sense if I'm wrong I'm am very sorry

Answer:

water, food, toliet paper, toothpaste

Step-by-step explanation:

Perimeter:-

[tex]\\ \sf\longmapsto 2(L+B)[/tex]

[tex]\\ \sf\longmapsto 2(40+30)[/tex]

[tex]\\ \sf\longmapsto 2(70)[/tex]

[tex]\\ \sf\longmapsto 140m[/tex]

Area

[tex]\\ \sf\longmapsto LB[/tex]

[tex]\\ \sf\longmapsto 40(30)[/tex]

[tex]\\ \sf\longmapsto 1200m^2[/tex]

= 2(Length + Breadth)

= 2(40 + 30)

= 2(70)

= 140m

= Length × Breadth

= 40 × 30

= 1200m^2

Therefore, The perimeter of the rectangle is 140m and the area of the rectangle is 1200m^2.

The total amount in the account after 1 year will be $420

Based on the information given, the following can be deduced:

Principal = $400

Interest rate = 5%

Time = 1 year

Therefore, the simple Interest will be:

= PRT/100

= ($400 × 5 × 1)/100

= $2000/100

= $20

Therefore, the amount will then be:

= Principal + Interest

= $400 + $20

= $420

Therefore, the total amount is $420

Read related link on:

https://brainly.com/question/24989563

Using proportions, it is found that each out is [tex]\frac{1}{54}[/tex] of all the outs in a 9-inning baseball game.

Supposing a 9-inning baseball game, each team has the right to 27 outs.

Two teams, thus, there are [tex]2 \times 27 = 54[/tex] outs.

This means that each out in a game [tex]\frac{1}{54}[/tex] of all the outs in a 9-inning baseball game.

A similar problem is given at https://brainly.com/question/24342347

Answer:

14 watts per second

Step-by-step explanation:

42 watts/3 seconds=14 watts per second

5. 25

6. 144

7. 64

8. 6

9. 16

10. 100

Answer:

16

Step-by-step explanation:

there are 4 1/4 servings in one cup

there are 4 cups so 4×4

Answer:

The answer of this would be 4.

Step-by-step explanation:

1/4 + 1/4 + 1/4 + 1/4 = 4

Answer:

all are correct

Step-by-step explanation:

Answer: 20. A 21. C 22. B

Step-by-step explanation: image attached below for explanation

The value of the function g(h(10)) will be 2√2.

A function is defined as the expression that set up the relationship between the dependent variable and independent variable.

Given that g(x) is √(x-4) and h(x) is 2x - 8. The value of the function g(h(10)) will be calculated as:-

h(x) = 2x - 8

At x = 10 the value of the function h(x) will be:-

h(10) = ( 2 x 10 ) - 8

h(10) = 20 - 8

h(10 ) = 12

Calculate the value of the function g(h(10)):-

g(h(10)) = √(x-4)

g(h(10)) = √(h(10)-4)

g(h(10)) = √( 12 -4 )

g(h(10)) = √( 8 )

g(h(10)) =  2√2.

Therefore, the value of the function g(h(10)) will be 2√2.

To know more about functions follow

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Answer:

What is a polynomial?

  - In mathematics, a polynomial is an expression consisting of indeterminates and coefficients, that involves only the operations of addition, subtraction, multiplication, and non-negative integer exponentiation of variables

What is a rational function?

- In mathematics, a rational function is any function that can be defined by a rational fraction, which is an algebraic fraction such that both the numerator and the denominator are polynomials.

Are all polynomials rational functions?

.A function that cannot be written in the form of a polynomial, so no they are not all functions.

Answer:

It will result if you have advanced classes or get an Ap class

Step-by-step explanation:

It will not affect your 9th grade..

Yet, you should work hard to achieve your aim and gain knowledge not for getting better marks.

Answer:

Sale price = $216, Discount = 24$

Step-by-step explanation:

100%-10%=90%

240 x .90 = $216 (sale price)

240-216 = $24 off

Answer:

cc

Step-by-step explanation:

It sounds like your teacher wants g = 2c as the answer. The constant of proportionality simply tells us what to multiply the input variable by, to get the output variable.

It's similar to saying y = 2x, but we use c in place of x and use g in place of y.

Answer:

tạo độ của anh ấy dừng là:

Step-by-step explanat ion(:-2,2.5)

Answer:

Step-by-step explanation:

(6,-1) and (3,4)

Answer:

the son. and 7/20

Step-by-step explanation:

you would ave the denominator to make them both 20 then the fractions would become 5/20 and 8/20 so it would be the son who washed the most. then add them together and get 13/20 so 7/20 laundry needs to be done

Answer:

d. they do not intersect

Step-by-step explanation:

Answer:

1st is (D.) 2nd is (C.) 3rd is (D.) 4th is (A.) 5th is (C.)

The question is an illustration of related rates.

The rate of change between you and the ball is 0.01 rad per second

I added an attachment to illustrate the given parameters.

The representations on the attachment are:

[tex]\mathbf{x = 100\ m}[/tex]

[tex]\mathbf{\frac{dy}{dt} = 2\ ms^{-1}}[/tex] ---- the rate

[tex]\mathbf{\theta = \frac{\pi}{4}}[/tex]

First, we calculate the vertical distance (y) using tangent ratio

[tex]\mathbf{\tan(\theta) = \frac{y}{x}}[/tex]

Substitute 100 for x

[tex]\mathbf{y = 100\tan(\theta) }[/tex]

[tex]\mathbf{\tan(\theta) = \frac{y}{100}}[/tex]

Differentiate both sides with respect to time (t)

[tex]\mathbf{ \sec^2(\theta) \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot \frac{dy}{dt}}[/tex]

Substitute values for the rates and [tex]\mathbf{\theta }[/tex]

[tex]\mathbf{ \sec^2(\pi/4) \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot 2}[/tex]

This gives

[tex]\mathbf{ (\sqrt 2)^2 \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot 2}[/tex]

[tex]\mathbf{ 2 \cdot \frac{d\theta}{dt} = \frac{1}{100} \cdot 2}[/tex]

Divide both sides by 2

[tex]\mathbf{ \frac{d\theta}{dt} = \frac{1}{100} }[/tex]

[tex]\mathbf{ \frac{d\theta}{dt} = 0.01 }[/tex]

Hence, the rate of change between you and the ball is 0.01 rad per second

Read more about related rates at:

https://brainly.com/question/16981791

Answer:

im not very good at that but my best problematic ratio is deviding the x ponet by the ^ and then using your y ponet multiplyed by your first couple of numbers which are "x^2"

Answer:

[tex]\sf x^2-2x-48[/tex]

Step-by-step explanation:

[tex]\begin{aligned} &\sf (x+6)(x-8) \\=&\sf x^2-8x+6x-48 \\=&\boxed{\sf x^2-2x-48} \end{aligned}[/tex]