7th GRADE WORK!!! ILL BRAINLIST!!!

Answer:

Step-by-step explanation:

3kx + 24 = 9kx

First subtract 3kx to both sides.

24 = 9kx  - 3kx

24 = 6kx

Divide both sides by 6

24/6 = kx

4 = kx

Divide both sides by k.

4/k = x

Subtract the amount he has from the amount he needs:

M = 250 -100

M = 150

He needs to earn$150 more

Answer:250-100=150

Step-by-step explanation:

Answer:

4  1/9

Step-by-step explanation:

so if we make the fraction the same having 7 4/9 and 3 1/3

we would then make 1/3 into 3/9 (its the smae thing not simplified)

subtract 7-3=4

4-3=1

and then simplify the fraction

Answer:

The length is 6 in., the width is 2 in., and the height is 16 in.

Answer:

length 6in.

width 2in.

height 16in.

Step-by-step explanation:

edge 2020

Answer:

See Explanation

Step-by-step explanation:

[tex] \frac{ \sin5A}{\sin A} - \frac{ \cos5A}{\cos A} = 4\cos2A \\ \\ LHS = \frac{ \sin5A}{\sin A} - \frac{ \cos5A}{\cos A} \\ \\ = \frac{ \sin5A \:\cos A - \cos5A \: \sin A}{\sin A \:\cos A } \\ \\ = \frac{ \sin(5A -A )}{\sin A \:\cos A} \\ \\ = \frac{ \sin 4A}{\sin A \:\cos A} \\ \\ = \frac{ 2\sin 2A \: \cos 2A}{\sin A \:\cos A} \\ \\ = \frac{ 2 \times 2\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A} \\ \\ = \frac{ 4\sin A \: \cos A \: \cos 2A}{\sin A \:\cos A} \\ \\ =4\cos 2A \\ \\ = RHS \\ \\ thus \\ \\ \frac{ \sin5A}{\sin A} - \frac{ \cos5A}{\cos A} = 4\cos2A \\ \\ hence \: proved[/tex]

Answer: The answer is 9/50

Step-by-step explanation:

18 is in the hundredths place so it would be 18/100 but then you simplify that and get 9/50

10 hot dogs and 5 hamburgers   your graph would be 2y:1x

[tex]\frac{2y}{1x}[/tex]

Answer:

=28

Step-by-step explanation:

10+(9−3)(3)

=10+(6)(3)

=10+18

=28

Answer:

I think it's either B or C because A and D don't make sense in my opinion.

Step-by-step explanation:

The degree of the p (x) is greater because r (x) is quadratic.

An algebraic equation with the second degree of the variable is called an Quadratic equation.

Given that;

The function p (x) is,

⇒ p (x) = 4x³ - 2x² + 15

And, The function of r (x) is find by table.

Here, By the given table;

The degree of r (x) is 2, because it is quadratic.

And, The degree of p (x) is 3.

Thus, We can conclude that;

The degree of the p (x) is greater because r (x) is quadratic.

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Answer:

Step-by-step explanation:

If y varies directly with x, it is:

Constant is -2, it means k= -2

Answer:

fhe planes coukd form ons or two limez

Answer:

B,‒3&7

Step-by-step explanation:

(x‒7)=0 (x+3)=0

x=0+7 x=0‒3

x=7 x=‒3

i hope it helps you

The value of y for the equation y = |x| + 1 is 10.

An equation is a combination of different variables, in which two mathematical expressions are equal to each other.

The given equation is,

y = |x| + 1          (1)

To find the value of y when x is - 9.

Substitute the value of x in equation (1),

y = |-9| + 1

The mode value of is always positive,

y = 9 + 1

y = 10

The required value of y is 10.

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Answer:

B. No, Jill is not correct, the fraction is equivalent to 0.023.

Step-by-step explanation:

The given fraction is [tex]\frac{23}{1000}[/tex]

Observe that in the denominator there is 1000, which has three zeros after 1.

In changing the given fraction to decimal, there must be 3 significant digits after the decimal.

According to this option (b) is correct.

Moreover, when 23 is divided by 1000, we have

[tex]\frac{23}{1000}=0.023[/tex]

But Jill says that 23/1000 can be written as 0.23, so, Jill is not correct.

Hence option (b) is correct,

Answer:

1 1/12

Step-by-step explanation:

3/4 + 1/3

Get a common denominator of 12

3/4 * 3/3 = 9/12

1/3 * 4/4 =4/12

9/12 + 4/12

13/12

12/12 + 1/12

1 1/12

Answer:

96 feet^3 (feet cubed)

Step-by-step explanation:

Volume is solved with the equation length*width*height, so in this case, 3*4=12 and 12*8=96.

Answer:

192

Step-by-step explanation:

3 times 4 is 24. 24 times 8 is 192

Answer:

all values of x makes the equation true

Step-by-step explanation:

-5(-8x-8)-4 = 5(5+8x)+11

40x + 40 - 4 = 25 + 40x + 11

40x + 36 = 40x + 36

all values of x makes the equation true

Answer:

141.74 grams

Step-by-step explanation:

According to the given situation, the computation of each baseball weighs is shown below:-

Each baseball weighs = Total weight of all ten baseballs ÷ Total amount

= 1,417.4 ÷ 10

= 141.74 grams

Therefore for determining the each baseball weighs we simply applied the above formula.

The same is to be considered

Answer:

21 kids have to go on the trip to make the museum a better deal

Step-by-step explanation:

Zoo: y=10x+100

Museum: y=5x+200

10x+100=5x+200

5x=100

x=20

When 20 kids go on trip the costs will be the same. Therefore, once 21 kids go the museum will be cheaper then the zoo as it is increasing at a rate of 5 dollars

Answer:

X=-2

Step-by-step explanation:

Answer:

Its 0.00031

Step-by-step explanation:

You just move your decimal the number of exponent. In your case -4 so you would move it to the left because it's a negative and move it 4 spaces.

Hope this helps!

Answer:

X=17

Step-by-step explanation:

Im sorry if this sounds a bit confusing. Im better at doing the math then explaining it. All the angles in that are 90-degree angles and because of that, you can assume that the angle that you trying to find is also 90 degrees. So to find that equation you can do this.

4x+22=90 -22 from both sides.

-22=-22  

you are left with

4x=68 then divide 4 from both sides.

/4=/4

you then get x=17 which is your answer.

Check your answer by plugging 17 into x.

4*17+22=90

The answer is 90 so you are correct.

Answer: A! x=-1 2/5, y= 1 3/5

Step-by-step explanation:

First put -3x+3y=9 into slope-intercept form(y=mx+b)

3y=-3x+9

then solve for y

y=-1x+3

enter your y-intercept into the equation below..

2x-7(-1x+3)=-14

2x+7x-21=-14

2x+7x=-14+21(when changing sides it changes signs that's why 21 is now a positive)

2x-7x=7

-5x=7 divide -5 into 7

7/5

x=-1 and 2/5

then input x back into the first equation

-3(7/-5)+3y=9

21/5+3y=9

3y=9-21/5

3y=24/5

divide 3 into 24/5

=24/15=1 and 9/15 reduce it anddd

y=1 and 3/5

Answer:

It is 5.5 miles/hour if you are trying to figure out how fast john runs.

Step-by-step explanation:

if john run 2 mile/hour faster than lucy, you just have to add how fast lucy is running by 2. This will equal john's miles/hour. now you times 5.5 by how many hours he runs.

Answer:

the answer is -153

Step-by-step explanation:

350-200(she paid off 200$)=150

150+23(she charged her account 23$)=173

173-35(she paid off 35$)=138

138+15(she charged her account 15$)=135

her new balance is -153$ because that is how much she has left to pay off before she reaches 0 then she can gain credit.

Answer:

Use the slope equation to find the slope of the 2 points. Then substitute the values given and the slope into the point slope equation.

Step-by-step explanation:

Point slope equation: y − y1 = m(x − x1)

Slope: y2-y1/x2-x1

Answer:

its is 38.6

Step-by-step explanation: