Mathematics Middle School

just please help me!!!

Answers

Answer 1

Answer:

the last one

3x-y=1

-2x+y=-4

Step-by-step explanation:

Answer 2

Answer: the last one is correct

Related Questions

What is the area of the figure on the coordinate plane below?

Options

A ( 144 units^2) B ( 128 units^2) C ( 126 units^2) D (252 units^2)

Answers

Answer:

A 144units ^ 2

Step-by-step explanation:

It’s either 144 units^2 or 126 units^2

PLZ HELP I NEED IT IN 9 MIN

Answers

Answer:

Step-by-step explanation:

r/6 = 15
what is the vaue of r? include an explanation, check, and property

Answers

r=90, because 90 divided by 6= 15.

R=90

Reverse the problem. What is 15 x 6? The answer is 90. 90 divided by 6 is 15.

please help i don't understand this

Answers

Answer:

x=12

a=48

b=82

c=50

Step-by-step explanation:

The slope of the line that contains the points (1, -1) and (2, 3) is 4. What is the y-intercept?

Answers

y- intercept =-5
y-y1=m(x-x1)
y-(-1)=4(x-1)
y+1=4(x-1)
y+1=4x-4
y=4x-4-1
y=4x-5
Or
y=4x+b
-1=4(1)+b
-1=4+b
-1-4=b
-5=b. Y-intercept is -5

The y-intercept of the line is -5.

What is an equation of a line?

The equation of a line is given by:

y = mx + c

where m is the slope of the line and c is the y-intercept.

Example:

The slope of the line y = 2x + 3 is 2.

The slope of a line that passes through (1, 2) and (2, 3) is 1.

We have,

We can use the slope-intercept form of a linear equation to find the

the y-intercept of the line.

The slope-intercept form of a linear equation is:

y = mx + b

where m is the slope of the line, and b is the y-intercept.

We are given the slope of the line that contains the points (1, -1) and

(2, 3) is 4.

Therefore, we can substitute m = 4 and one of the points into the equation, and solve for b.

Let's use the point (1, -1):

y = mx + b

-1 = 4(1) + b

-1 = 4 + b

b = -1 - 4

b = -5

The y-intercept of the line is -5.

The equation of the line in slope-intercept form is:

y = 4x - 5

Thus,

The y-intercept of the line is -5.

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Addison wants to ride her bike more than 80 miles this week. She has already ridden her bike 18 miles, which inequality could be used to determine the number of …

Answers

The number of what.................?

The inequality is:
18 + 6 x > 80
6 x > 80 - 18
6 x > 62
x > 62 : 6
x > 10.333... miles
She would need to ride her bicycle more than 10 1/3 miles each day to achieve her goal.

Kim's Family spends $62.50 on dinner. They leave an 18% tip. How much is their total bill after tip?
A: $73.75
B: $51.25
C: $11.25

Answers

Answer:

Step-by-step explanation:

Answer:

A: $73.75

Step-by-step explanation:

18% of 62.50 is 11.25

11.25 + 62.50 = 73.75

Answer:

A: $73.75

ik its long but PLEASE HELP!

Answers

IMAGE 1:

The object is 3 units tall, 7 units long, 2 units wide.

3 * 7 * 2 = 42

Answer is 42 cubic units.

IMAGE 2:

Let’s start with the smaller figure first.

The figure is 2 m tall, 6 m wide, and 5 m long.

2 * 6 * 5 = 60

Answer is 60 cubic meters

IMAGE 3:

The aquarium is 5 ft long, 4 ft wide, 2 ft deep (tall).

5 * 4 * 2 = 40

The volume is 40 cubic ft

The volume is 40 cubic ft

A candy bar costs $0.79
Find the price of the candy bar if it is sold with a 65% mark up
A. $1.58
B. $1.44
C. $1.30
D. $1.17

Answers

Answer:

C. $1.30

Step-by-step explanation:

Multiply 0.79 and 0.65 (65%) which is about 0.51.

Add that to 0.79.

Answer:

$ 1.30

Step-by-step explanation:

Increased price = 65% of $0.79

[tex]\frac{65}{100}*0.79[/tex]

= 0.65 * 0.79

= 0.5135

= $ 0.51

Selling price = 0.79 + 0.51 = $ 1. 30

Amira bought 3.34 lbs. of grapes at $0.67 per pound. How much money did she spend?

Answers

Answer:

$2.24

Step-by-step explanation:

you multiply 3.34 and 0.67 then you round

0.67 x 3 = 2.01
0.67 x 0.34 = 0.2278 —> rounded to 0.23
2.01 + 0.23 = 2.24
she spent $2.24

Please help me, I am not sure what the answer is!

Answers

Answer:

The answer is r = 19 ft.

I already learned this

your answer would be r= 19ft

How many different kinds of shapes are used to create the faces on this three-dimensional model?

A. 1
B. 2
C. 5
D. 10

Answers

I think the answer is 1

helpppppppppppppp please

Answers

Answer:

You didn't list a question

Step-by-step explanation:

you would have to list a question for me to help .

what is the balls max height and how long does it take to get there
h=-16t^2+48t+8

Answers

1.5 is the answer

IKNOW

i need help asap 1/2k=20

Answers

Answer:

K=40

Step-by-step explanation:

40 divided by 2 is 20.

Answer:k=40

Step-by-step explanation:

Let's solve your equation step-by-step.

k=20

Step 1: Multiply both sides by 2.

2*(

k)=(2)*(20)

k=40

A gold chain with an original price of $120 is on sale for $96. What is the percent of the discount?

Answers

Answer:

Step-by-step explanation:

Because he only took of all little bit of cash hope this helps

Answer:

Step-by-step explanation:

percent discount=(120-96)/120 ×100

=24/120×100=20 %

On a different day, Kevin and Jim ran ⅝ of a milealtogether. If Kevin ran ¼ of a mile, how far did Jim run?

Answers

Answer:

Jim ran 3/8 of a mile

Step-by-step explanation:

(5/8 - 1/4) = (5/8 - 2/8) = 3/8 of a mile

Aaron works at a furniture store. He sells a
table that normally costs $670 but is on sale
for 15% off. If he makes 8% commission on
the sale price, how much will he make in
commission?

Answers

Answer:

$45.56

Step-by-step explanation:

Amount Aaron will make in commission

= 100-15

=85% of 670

=569.5

=8% of 569.5

=$45.56

please help will mark brainliest! (random answers will be reported)

Answers

Answer:

Step-by-step explanation:

Sorry if I am incorrect!

A 12-pound bag weighs more than a 200-ounce bag. True or false?
Question 9 options:
True
False

Answers

Answer:

False. A 200-ounce bag would weigh more than a 12-pound bag.

Hope this helps!

The statement "A 12-pound bag weighs more than a 200-ounce bag." is True.

What is Unit Conversion?

The same attribute is expressed using a unit conversion, but in a different unit of measurement. For instance, time can be expressed in minutes rather than hours, and distance can be expressed in kilometres, feet, or any other measurement unit instead of miles.

Given:

A 12-pound bag weighs more than a 200-ounce bag.

As, we know

1 pound = 16 ounce

So, the weight of bag in ounces

=12 pound

= 12 x 16

= 192 ounce

So, the statement is True.

Learn more about Unit Conversion here:

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30 points
Which function does the graph represent?

f(x) = (x – 2)2 + 3
f(x) = –(x – 2)2 + 3
f(x) = (x + 2)2 + 3
f(x) = –(x + 2)2 + 3

Answers

Answer:

I think id be the last one

Step-by-step explanation:

The graph would represent f(x)= -(x+2)2+3 which is the last one

i will give Brainliest to right answer

Answers

Answer:

the answer is C i hope u do well

The answer is C hope this helps

Please help, I would really appreciate it!
The figure shows a line graph and two shaded triangles that are similar:

Which statement about the slope of the line is true? (5 points)

Select one:
a. It is fraction 1 over 2 throughout the line.
b. It is 2 throughout the line.
c. The slope from point O to point A is fraction 1 over 2 time the slope of the line from point A to point B.
d. The slope from point O to point A is two times the slope of the line from point A to point B.

Answers

The correct answer for this question is A

Answer:

The correct Answer for this question is A

hope this helped. goodday.

Step-by-step explanation:

PLZ HELP I WILL GIVE YOU BRAINLIST!!

Answers

Answer:

1.0

2.148

3.74

4.37

5.111

Answer:

0% of 148 is 0

100% of 148 is 148

50% of 148 is 74

25% of 148 is 37

75% of 148 is 111

Step-by-step explanation:

Hope this helped :)

Help me please thx........

Answers

Answer:

The radius is 11

Step-by-step explanation:

the radius is always half of the diameter

Answer:

its 11° ................

Please help!! ASAP! Please show your work

Answers

2/7 represents poop proportional poop is when you cut the poop in the middle

The answer is 2/7 I THINK

Help please this is due today
h(x) = -5x^2 +5x

Answers

H(x)=-5(x 1/2)^2+5/4 Or X1=0,x2=1

What are the 2 criteria a linear graph must have to be proportional?

Answers

A graph of a proportional relationship is a straight line that passes through the origin. The constant of a proportionality in a graph of a proportional relationship is the constant ratio of y to x (the slope of the line).

I need help on this lol

Answers

Terms are 3x, 5, 2x, and x.
Like terms are 3x and 2x.
Coefficients are 3 and 2.
Constant is 5.

lmk if anything is incorrect!!

Answer:

terms: 3x, 5, 2x, & x

like terms : 3x , 2x , -x

coefficients : 3 , 2

constants : 5

Step-by-step explanation:

coefficients are the numbers next to a variable

What is this answer (please)

Answers

Answer:

1) 25

3) 100is the upper limit

4) 5 is the frequency

1) 25
2)
3)100 is the upper limit
4) is the frequency

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