Mathematics High School

Need help pleaseeee

Answers

Answer 1

Cross multiply
10(x-3) = 9x
10x - 30 = 9x
-1x = -30
X = 30

Answer 2

Answer:

x = 30

Step-by-step explanation:

Related Questions

Carl Cornfield has been wondering whether he should plant white corn this year. He decides to sample 100 customers. 38% say they would purchase white corn. Carl wants to have a 95% confidence interval for this proportion.

The confidence interval is from 33% to 43% (to the nearest percent).

True
False

Answers

Answer:

true

Step-by-step explanation:

Jerry eats 3 pickles in 2 minutes. How many pickles will he eat in 10 minutes?
Terrance makes 8 free-throws out of 40. What percent of the free-throws did Terrance make?
Lamont picks 12 boogers in 5 minutes. If he picks his nose for 20 minutes, how many boogers will he get?
Reevis answers 18 math questions correct and scored a 75%. How many total questions are on the quiz?
DO
Aj fights 16 clowns in the streets in 12 minutes. How many will he have fought after 18 minutes?

Answers

1) Jerry will eat 15 pickles in 10 minutes.
2) Terrance made 20% of his free-throws.
3) Lamont will get 48 boogers in 20 minutes.
4) There are 24 total questions on the quiz.
5) Aj will have fought 24 clowns after 18 minutes.

Answer:

Jerry will eat 15 pickles in 10 minTerrance made 20% of his free throwsLamont will get 48 boogers in 20 minutesthere are 24 questions on the quizAn will have fought 24 clowns after 18 minutes

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Joe can run 12 miles in 125 minutes. How many miles can he run in 230 minutes? (solve and explain the steps)

Answers

Answer:

Joe will run 22.08 miles in 230 minutes.

Step-by-step explanation:

Given that Joe can run 12 miles in 125 minutes.

so Joe running the miles in 1 minute is = 12/125 = 0.096 miles

unit rate = 0.096 miles/per minute

As Joe runs 0.096 miles in one minute.

Thus, in 230 minutes, Joe will run = 0.096 × 230 = 22.08 miles

Therefore, Joe will run 22.08 miles in 230 minutes.

Solve-1 + 8 =
10 - 3a.

Answers

Answer:

a = 1

Step-by-step explanation:

Original Equation:

-1 + 8 = 10 - 3a

Add 1 to both sides

8 = 11 - 3a

Subtract 11 from both sides

-3 = -3a

Divide both sides by -3

a = 1

Hope this helps :)

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Answer:

a = 1

Step-by-step explanation:

-1 + 8 = 10 - 3a

7 = 10 - 3a

-10 -10

-3 = -3a

---- -----

-3 -3

1 = a

please help me with the question

Answers

Answer:

D. If you go through all the equations they all come out true beside this one. With this one Alisha pays $1,480 which is less than $1,500

On a number line what number represents the point half the distance between A and B?

Answers

Answer:

A: -4

Step-by-step explanation:

Math.

Answer:

A. -4

Step-by-step explanation:

8 4/5 ÷ 4 = ?
The principal is equally distributing 8 4/5 cakes on 4 tables for a school party. How many cakes are on each table?

Answers

Answer:

Step-by-step explanation:

8 4/5 divided by 4= 2.2

ming took a cab across town. His fare was $22, and he leaves a 18% tip. What is the total amount Ming pays to the cab driver?

Answers

Answer:

25.96

Step-by-step explanation:

18% of 22 is 3.96

3.96+22=25.96

Does anyone know the answer to this question. I already tried A and C.

Answers

I think the answer would have to be D. If the diameter, which is the distance from one point on the circle through the center to another point on the circle, is halved then the amount of concrete that will be needed will be multiplied by 4. I think that's right I am so sorry in advance if that was incorrect. Have a beautiful rest of your day. Stay safe. C O V I D - 1 9 IS REAL THIS COULD MEAN YOUR LIFE!!!

Enter the equation of the line in slope-intercept form. Enter the answer in fraction form.

The line perpendicular to y =
5
3
x + 8 that passes through (5, −1).

The equation of the line that passes through (5, −1) is y = .

Answers

Answer:

Step-by-step explanation: this is because you have a negative

charles has 24 marbles. he has 6 more yellow marbles then blue marbles. which equation represents this senctence

Answers

Sksisjjsjskakalalaljdjdh

Answer: n+(n+6)=24,where n is the number of blue marbles. 3. n+6n=24,where n is the number of blue marbles.

Step-by-step explanation:

What is the solution to 0.3(12x - 16) = 0.4(12 - 3x)?

Answers

Step-by-step explanation:

The solution is one-solution

.3(12x-16)=.4(12-3x) (you do the distributive property)

3.6x-4.8=4.8-.12x (you add 1.2 to both sides)

3.6x-3.6=4.8 (You add 3.6 to both sides)

3.6x=8.4 ( You divide 3.6 both numbers)

x=0.4285...

Its a one-solution

A recipe for salad dressing calls for 3 tablespoons of oil for every 2 tablespoons of vinegar. The line represents the relationship between the amount of oil and the amount of vinegar needed to make salad dressing according to this recipe. The point ( 1, 1.5) is on the line.
a. Label the axes appropriately with the quantities they represent.
· b. Write an equation that represents the proportional relationship between oil and vinegar. Indicate the meaning of each variable.
Equation: ___________________________________________________________ ·c. Explain the meaning of the point (1, 1.5) in terms of the situation.
Explanation: __________________________________________________________

What's B and C?? Please help.

Answers

a.(answer):

Y represents table spoons in oil and the X represents the table spoons in vinegar.

b.(answer):

oil needed is one(1) tablespoon the amount of vinegar used is 1.5 tablespoons to make the salad dressing the correct and for it to be proportional.

linear equation

y = 3/2x

c.(answer)

For every 1 tablespoon of vinegar there is 1.5 table spoons of oil X=1,Y=1.5.

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Let x=
-
11
8
and y=
11
4
0
Which expression has a negative value?
Copyright 2017 Open Up Resources
Select one
OA. x+y
OB. xy
OC. x.y
OD. x/y

Answers

Answer:

OD. x/y

Step-by-step explanation:

what is the difference between 6204 and 5735

Answers

Answer:

469

Step-by-step explanation:

Difference = subtraction6,204 - 5,735 = 469

I hope this helps!

the difference is 469

Solve -2a - 5>3
Which graph shows the solutions?

Answers

-4>3

Step-by-step explanation:

Answer:

First line

Step-by-step explanation:

Isolating 2a is the first step, so adding 5 to each side. That leaves -2a > 8. Divide both sides by -2, and because it's a negative, you flip the sign. so you get a < -4

Find the slope of the line

Answers

Answer:

The line has a slope of Zero.

Step-by-step explanation:

Answer:

The answer is zero

Step-by-step explanation:

The answer is zero because the line is straight it's not positive or negative.

HELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLP! what x-45 divided by 17 if x=98?

Answers

Answer:

98-45/17=3.11

Step-by-step explanation:

Thanks for the points

Question 18 of 25
If f) =3*+ 10 and glx) = 2x- 4, find (f+ 9)().
OA. (f+ )() = 5x +6
OB. (f+ g)() = 3*+ 2x+ 6
OC. (f+ 9)() = 3r- 2x+ 14
O D. (f+ 9)() =-3*- 2x-14
SUBN

Answers

Answer:

C. (f+ 9)() = 3r- 2x+ 14

Step-by-step explanation:

What theorem proves that this congruent

Answers

sss

Step-by-step explanation:

side side side

all 3 or congruent

NEED HELP!! what are the coordinates of point j?

Answers

Answer:

(7,4)

Step-by-step explanation:

PLZ HAAAALP
One winter day, the temperature was -15°F. Later that day, the temperature rose 12°F to reach the high temperature for the day. If t represents the high temperature, what is t?

Answers

Answer:

-3°F

Step-by-step explanation:

-15 + 12 = -3

Answer:

-3

Step-by-step explanation:

What is the y-intercept of the graph?

Answers

Answer:

Step-by-step explanation:

What is the y-intercept of the graph?
The y-intercept is 2

a bag contains 10 red marbles, the ratio of red marbles to blue marbles is 5 to 1 find the numbers of blue marbles in the bag

Answers

Answer:

The Answer is 2 blue marbles.

Step-by-step explanation:

The numbers of blue marbles in the bag will be 2.

What is proportion ?

A proportion is an equation based on the equality of two ratios.

Here it is given that :

a bag contains = 10 red marbles

the ratio of red marbles to blue marbles is = 5:1

That is :

5 ratio of marbles is equals to = 10 marbles

now,

1 ratio of marbles is equals to = 2 marbles

Therefore, the numbers of blue marbles in the bag will be 2.

Answers

Answer: -3

Step-by-step explanation: just multiply

The best estimate of the average rate of change for the function graphed over the interval 1 ≤ x ≤ 3 is 3.

What is Average Rate of Change of a Function?

Average rate of change of a function is defined as the rate at which the value of the function is changing with respect to the change in the input values.

The interval given is 1 ≤ x ≤ 3.

The graph of the function is given below.

It can be clearly seen that,

The y value corresponding to x = 1 is y = f(1) = 2.

So one point on the graph is (1, 2).

The y value corresponding to x = 3 is y = f(3) = 8.

So the other point on the graph is (3, 8).

Average rate of change over 1 ≤ x ≤ 3 = [f(3) - f(1)] / [3 - 1]

= [8 - 2] / [2]

= 6/2

= 3

Hence the best estimate for the average rate of change of function over the interval 1 ≤ x ≤ 3 is 3.

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10x-3=-5x-18

I don’t know can some one help

Answers

Answer:

x=-3 (x equals negative three)

Explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

Althea traveled 280 miles at a speed of 70 miles/hour. How much time did she take to cover this distance?

Answers

I think it would be four hours!! Let me know if it’s right or wrong! Have a good day!

For which system of equations is the graph below a solution

Answers

Answer:

what is the equation for D?

Step-by-step explanation:

Answer: A

Step-by-step explanation:

nce a year, a store offers a free frozen yogurt to its customers. Each customer can cl he flavor of frozen yogurt and one topping. There are 8 possible ways to order the fro gurt. How many flavors and toppings could the customers choose from? 4 flavors and 3 toppings 2 flavors and 4 toppings 2 flavors and 2 toppings 4 flavors and 4 toppings

Answers

the answer would be i think they sre able to get 2 flavors

1. 2x+5(6x-9)=179
2. -40=6x-5(-4x-18)
solve for X

Answers

Answer:

1. x = 7

2. x = -5

Step-by-step explanation:

1. Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation: 2*x+5*(6*x-9)-(179)=0

Pull out like factors 6x - 9 = 3 • (2x - 3)

(2x + 15 • (2x - 3)) - 179 = 0

Pull out like factors: 32x - 224 = 32 • (x - 7)

Solve: x-7 = 0

Add 7 to both sides of the equation = 7

2. Rearrange the equation by subtracting what is to the right of the equal sign from both sides of the equation: -40-(6*x-5*(-4*x-18))=0

Pull out like factors: -4x - 18 = -2 • (2x + 9)

-40 - (6x - -10 • (2x + 9)) = 0

Pull out like factors: -26x - 130 = -26 • (x + 5)

-26 • (x + 5) = 0

Solve: x+5 = 0

Subtract 5 from both sides of the equation: x = -5

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Thanks!

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