Mathematics High School

10. (02.03)
Below are the steps to solve an equations
Step 1: IX - 4l+ 1 = 8
Step 2: IX - 4l = 8 - 1
Step 3: IX - 4l = 7
Which of the following is a correct next step to solve the equation? (1 point)
X-4 = -7
x+4=-7
x + 4 = 7
-x-4= 7

Answers

Answer 1

Answer:

x-4 = 7 , x-4 = -7

Step-by-step explanation:

IX - 4l+ 1 = 8

Subtract 1 from each side

IX - 4l = 8-1

IX - 4l = 7

Then separate into two equations, one positive and one negative

x-4 = 7      x-4 = -7

Related Questions

One yardstick for measuring how steadily—if slowly—athletic performance has improved is the mile run. In 1958​, the local record for the running of a certain distance was 3​ minutes, 59.3 ​seconds, or 239.3 seconds. In the​ half-century since​ then, the record has decreased by 0.5 seconds per year.

Answers

Answer:

They will hit 180 seconds in 118.6 year

Step-by-step explanation:

Let M be the record for the mile (in seconds)

Let x be the year after 1958

So, x=(year)-19548

We are given that In the​ half-century since​ then, the record has decreased by 0.5 seconds per year

So, slope = m = 0.5

Now we will use point slope form

y = mx+c

So, we can express M as,

[tex]M=239.3-0.5 \times x[/tex]

Now we are supposed to find when they will hit 180 seconds

Substitute M = 180 in equation

180=239.3-0.5x

x=118.6

So, they will hit 180 seconds in 118.6 year

Stock Market At the beginning of the day the stock market goes down 50 3/4 points and stays at this level for most of the day. At the end of the day the stock market goes up 120 1/2 points from the at the beginning of the day. What is the total change in the stock market from the beginning of the day to the end of the​ day?

Answers

Answer:

69 3/4

Step-by-step explanation:

The stock market goes down to 50 3/4 at the beginning of the day

At the end of the day it goes up to 120 1/2

Therefore total change in the stock market from the beginning to the end of the day can be calculated as follows

= 120 1/2 - 50 3/4

= 241/2 - 203/4

= 279/4

= 69 3/4

Hence the total change in the stock market from the beginning to the end of the day is

69 3/4

Clair collects seashells. At home, she has 15 shells. Every day she brings 3 back to the beach. After 5 days how many seashells will Clair have?
x= days
y= number of shells
Make a table, graph (find slope), equation, define variables, and answer the question.

Answers

The equation would be:

y = 3x + 15

1) Table: It is pretty easy to do so, just plug in 0, 1, 2, 3, etc. for x and solve for y

2) graph (find slope): slope would be 3 shells/day that has a y-intercept of 15

3) you already defined the variables

4) 3(5)+15 = 15+15 = 30 seashells

I hope this helps!

Simplify (4b+7)8b^2
Can someone help me please?

Answers

Answer:

[tex]32b^{3} +56b^{2}[/tex]

Step-by-step explanation:

Answer:

32b^3+56b^2

Step-by-step explanation:

distribute 8b^2 through the ()

32b^3+56b^2

What is the value of G-3=9

Answers

Answer:

G=12

Step-by-step explanation:

Answer:

12

Step-by-step explanation:

Step 1:

g - 3 = 9     Equation

Step 2:

g = 9 + 3      Add 3 on both sides

Answer:

g = 12

Hope This Helps :)

Write the number 352 in expanded form. *
yar
answer

Answers

q: write the number 352 in expanded form
a:300+50+2

Which table represents a linear function?

Answers

The third table on the top
(1,-3)
(2,-5)
(3,-7)
(4,-9)

Function Rule: y = 6x + 5 What is the output if the input is -2

Answers

Answer:

y=mx+b

Step-by-step explanation:

What is the range of the graph?

Answers

Answer:

I really don't know look it up

Answer:

should be [0, to positive infinity)

Step-by-step explanation:

If Q is between R and T , RT = 24 cm, and QR = 6 cm, then QT = _________.

Answers

Answer:

18 cm

Step-by-step explanation:

Answer:

18cm

Step-by-step explanation:

R        Q       T

<---------------->

<-----> <------->

6cm + 18cm =24cm

Kohle drove 204 miles in 4 hours . If she continued at the same rate, how long would it take to travel 765 miles ?

Answers

Answer:

it will take 15 hours to travel 765 miles

I need to make I am right so, which is more -9 8/9 or -10 8/9

Answers

-9 8/9 pretty sure hope this helps

help please ASAP please​

Answers

The answer is 3/4. Good luck!

I have no idea what to do here

Answers

Answer:

You write 75% as a decimal

which would be: 0.75

Answer:

.75 is it as a decimal

Step-by-step explanation:

When you have a percentage you always move two places to the left.

For example 67% , the decimal would be .67 ---->    _6_7% the lines are showing the two places you move. Also if you have 157% as a decimal it is 1.57 always move two places to the left no matter how big the percent is!!

The concession stand at a school basketball game sells slices of pizza for $2 each and pretzels for $1.25 each. Josiah’s mom gave him $15 to spend. Write an equation (in standard form) to model this situation.

Answers

Answer:

2p + 1.25z ≤ 15

Step-by-step explanation:

p=pizza

z=pretzel

which quotient is larger? 11÷23 or 7÷13​

Answers

Answer:

7/13 is larger

Step-by-step explanation:

Tom cuts 8 watermelons in 15 minutes. How many watermelons
does he cut in one hour?

Answers

Answer:

32 watermelons

Step-by-step explanation:

Can someone help me simplify this (7b2 + 7b) + (7b + 7)

Answers

Answer:

21b + 9

Step-by-step explanation:

7b(2 + 7b) + (7b + 7)

7b+7b+7b=21b

2+7=9

21b + 9


Please please help me!!

Answers

Answer:

x=3y+18
————
2

Explanation: Step by step
A is the correct answer

Aunt Mae bakes 12 dozen muffins in 45 minutes. How long would it take her to bake 4 dozen muffins?

Answers

Answer:

15 minutes

Step-by-step explanation:

set up a proportion of dozens of muffins over minutes taken to make them. 12/45=4/x. Cross multiply to get 180=12x. 180 divided by 12 is 15.

A 12 m object is represented in a picture as being 2 cm. What is the scale?

Answers

Answer: 1:600

Step-by-step explanation:

From the question, we are informed that 12 m object is represented in a picture as being 2 cm.

To find the scale used, we needed to convert 12m to cm. Since 100cm = 1m, then 12m = 12 × 100 = 1200cm.

Therefore, a 1200cm object is represented in a picture as being 2 cm. The scale will be:

= 2/1200

= 1/600

= 1:600

This means that 1 centimeter in the picture represent 600 centimeter or 6 meters.

what is the point-slope form of a line that has a slope of 3 and passes through point (1,4)​

Answers

Answer:

y=3x+1

Step-by-step explanation:

y=mx+b

y=3x+1

4=(3*1)+b

4=3+b

1=b

y=(3*1)+1

y=3+1

y=4

Write a quadratic function in standard form with zeros 3 and 9 plzzzz helppp meee

Answers

Answer:

x²+12x+27

Step-by-step explanation:

put the intercepts in intercept form which is a(x-p)(x-q)

That would be (x-3)(x-9)

Foil x²-9x-3x+27

Solve x²-12x+27

Evaluate the expression of a=-2 b=-3 c=2 x=2.11 y=3 s= -4.2
-|5a + c| + |3y + 2z|

Answers:
-11.4
8.06
-7.4
9.4

Answers

Answer:

C. -7.4

Step-by-step explanation:

-(5(-2) + 2) + (3(3) + 2(-4.2))

(-10+2) + (9 + -8.4)

-8 + 0.6

-7.4

I NEED HELP PLZ ASAP!!!​

Answers

Answer:

C is the answer

Step-by-step explanation:

Its hard to explain, but i'm 100% sure.

Answer:

All of them

Step-by-step explanation:

if you look closely at the shame and decipher each option they all come into form for that shape.

Hope Hopes^^

Barry

QR=QR

Choose the definition, theorem, or postulate that justifies the statement.

A. Subtraction Property of Equality
B. Definition of Midpoint
C. Segment Addition Postulate
D. Symmetric Property (of= or≅)
E. Reflexive Property (of= or≅)
F. Transitive Property (of= or≅)
G. Definition of Congruence
H. Substitution Property
I. Addition Property of Equality
J. Multiplication Property of Equality
K. Division Property of Equality

Answers

E. Reflexive property ( of = or ≅ )

As per the reflexive property two angles , lines or line segments are said to be congruent with themselves . Hence we say that QR = QR .

How many feet did Mike descend (go down) in the last three hours of his hike?

Answers

Answer: Mike descended 3000 feet

Step-by-step explanation: Hope this helps.

Answer:

3000 feet

Step-by-step explanation:

POSSIBLE POINTS 50
Solve the following problem using the checklist below.
2. Jonathan buys equipment to print his own pictures. The equipment cost him $178 and it will cost him $0.17 for each picture he prints. The photo store
charges $0.39 per photo. How many photos does Jonathan need to print with his own equipment to begin to save money?

Answers

Answer:

317

Step-by-step explanation:

Answer: 317

Step-by-step explanation:

178 x 0.17x = 0.39x

Which unique point on this graph can represent the slope of the graph and the unit rate of change in the snow level?​

Answers

Answer:I will give you an answer ,but I can't unless I can see the graph

Step-by-step explanation:

the total cost of renting a cotton candy machine for 4 hours is $72. what equation can be used to model the total cost y for renting the cotton candy machine x hours

Answers

An equation which can be used to model the total cost (y) for renting the cotton candy machine (x) hours is y = 18x.

What is an equation?

An equation can be defined as a mathematical expression which shows that two (2) or more thing are equal.

What is a system of equations?

A system of equations can be defined an algebraic equation that only has two (2) variables and can be solved simultaneously.

In order to solve this word problem, we would assign variables to the unknown numbers and then translate the word problem into algebraic equation as follows:

Let x represent the number of hours.Let y represent the total cost.

Translating the word problem into an equation, we have;

y = 72/4 × x

y = 18x

Read more on equations here: brainly.com/question/13170908

#SPJ1

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