Mathematics Middle School

Solve the equation using inverse operations. Check your solutions. In your final answer, include all of your work.

5 - 2x^2 = -15

Answers

Answer 1
-2x^2=-15-5
-2x^2=-10
x^2=-5
X≠R i am not quite sure but...hope it helps :)
Answer 2
The answer for this equation
Solve The Equation Using Inverse Operations. Check Your Solutions. In Your Final Answer, Include All

Related Questions

how to understand slope and anwer plz

Answers

Answer: slope is 3/4

Step-by-step explanation:

y over x

Answer:

Slope is the ratio of the rise to the run.

The slope tells you how steep a line is.

A negative slope goes up to the left and down to the right.

slope is 3/4

Step-by-step explanation:

It says I keep getting messages, but I cant message anyone, and when I go to the messaging tab, nothing is there. Anybody have an explanation?

Answers

it’s probably just a glitch try restarting the app maybe

f(x)=2x-3, if 6-f(5) PLEASE HELPPP WILL GIVE BRAINLIEST

Answers

Answer 7 I’m pretty sure
Use the given functions to set up and simplify 6-f•5
-1
Not positive but pretty sure hope this helped.

Please help me with math

Answers

Answer:

46.64 feet/second

Step-by-step explanation:

Answer:

46.6

Step-by-step explanation:

Umm sooo I like really need help (7th grade math)

Answers

Answer:

-3/4

Step-by-step explanation:

hope i helped

Answer:

-11/2 divided by 22/3 is -0.75

Step-by-step explanation:

-11/2= -5.5

22/3= 7.3

-5.5 divided by 7.3  = -0.75

The variables x and y are related proportionally. When x = 4, y = 14. Find y when x = 40.
When x = 40, y =

Answers

Answer:

See Below

Step-by-step explanation:

Take the the given information and compare to the question being asked

[tex]\frac{y}{x}[/tex]. So insert the x & y's of both equations (ima do y over x to make it easier)

[tex]\frac{14}{4} =\frac{y}{40}[/tex]

divide 14/4

3.5 = [tex]\frac{y}{40}[/tex]

then multiply both sides by 40 to isolate y

140 = y

Check by reinserting 140 and divide it by 40

Answer:

y= 140

Step-by-step explanation:

if they are directly proportional, that means when one increases/decreases the other does as well.

x increased by multiplying itself by ten. Like before, since they are both directly proportional that means that y is multiplied by 10.

14*10= 140, y=140

An architect built a scale model of a sports stadium using a scale in which 3 inches represents 25 feet. The height of the sports stadium is 230 feet. What is the height of the scale model in inches?

Answers

Answer:

9 is the height of the scale model in inches.

Step-by-step explanation:

230/25 = 9

Math..................................

Answers

Answer is a. Tell me if this was right?
It’s either a or d :)

Answer pls hard question

Answers

What do you need help with? There’s is no question nor is there a picture with a question
where is the question?

Convert to a fraction in simplest terms: .45

Answers

Answer:

9/20

Step-by-step explanation:

9/20 is the answwrrrr

Did I get this answer right?

Answers

yes you did it that’s right

Answer:

Yes, you did get this correct. Great job!

Step-by-step explanation:

In order to do this, just multiply straight across. 2x2=4 and 3x7=21. You are definitely correct.

Have an amazing day:)

For 10 points, Which of the following containers is the most likely to have a capacity of 38 L?

kitchen sink
bottle of hairspray
water tower

Answers

Answer:

kitchen sink

Step-by-step explanation:

a water tower carries a couple tons of water while a bottle of hairspray will carry *maybe* one.

Answer:

kitchen sink

Step-by-step explanation:

bottle can't have more than a litre, water tower has thousands of litres, so kitchen sink is the correct answer

If Paul runs 5 miles in 3 hours, how many miles does he run in 24 hours?
A. 8 miles
B. 12 miles
C. 45 miles
D. 40 miles
Which one is right? Please explain your answer.

Answers

answer -
40 miles

explanation -
it would be 40 miles because 3 x 8 = 24 hrs.
and then you would have to multiply 5 x 8 = 40 miles.

have a good day! :)
D. 40 miles
24/3=8
8*5=40

PLEASE HELP, ASAP!!! I WILL GIVE A THANKS, 5-STAR RATING, AND BRAINLIEST!!!

*Also, please include the coordinates of the new line and fill the blanks*
*Problems 5 through 12, do them all*

Answers

i’m not sure , i got confused

Help with 8th-grade middle school math show work

Answers

Answer:

So for the triangle, we have x = 25 and the angles 45-75-60.

So for the quadrilateral, we have x = 75 and the angles 70-110-75-105.

Step-by-step explanation:

For each of these problems, we can simply add the expressions of the angles given matched to the sum of the angles for the shape given below.  Once we do this, we can solve for x, and then state the given measures of each angle of the shapes.

For the triangle:

60 + ( x + 20 ) + 3x = 180

60 + x + 20 + 3x = 180

60 + 20 + x + 3x = 180

80 + x ( 1 + 3 ) = 180

80 + x ( 4 ) = 180

80 + 4x = 180

4x = 100

x = 25

We have the given angles:

x + 20 ==> 25 + 20 ==> 45

3x ==> 3 (25) ==> 75

60

So for the triangle, we have the angles 45-75-60.

For the quadrilateral:

( x - 5 ) + ( x + 35 ) + x + 1.4x = 360

x - 5 + x + 35 + x + 1.4x = 360

35 - 5 + x + x + x + 1.4x = 360

30 + x ( 1 + 1 + 1 + 1.4 ) = 360

30 + x ( 4.4 ) = 360

30 + 4.4x = 360

4.4x = 330

x = 75

So, we have the given angles:

x - 5 ==> 75 - 5 ==> 70

x + 35 ==> 75 + 35 ==> 110

x ==> 75

1.4x ==> 1.4(75) ==> 105

So for the quadrilateral, we have the angles 70-110-75-105.

Cheers.

WILL MARK BRAINLIEST PLEASE HELP

Answers

a - 1
b - 2
c - 3
d - (-8)

(6+-8 will equal -2)

i think that is what you are looking for if so for the other ones for the negative number it must be higher in number than the first three combined to equal a negative

The scale model of a rectangular garden is 1.5 ft by 4 ft. The scale model is enlarged by a scale factor of 7 to create the actual garden. What is the area of the actual garden?
6 Feet squared
42 Feet squared
252 Feet squared
294 Feet squared

Answers

I will say 42, I am sorry if I am incorrect.
The answer is 6ft squared.

What are the three angle measures in the triangle shown below?

Answers

Answer:

c is your answer

Step-by-step explanation:mark brainliest

I think c is the answer!!!!

brown rat and opossum

hamster and lemming

opossum and prairie dog

Determine if each pair of animals has the same ratio of body length to tail length. Explain your reasoning.

Answers

Answer:

Hamster and lemming has about the same body to tail ratio. Since, their body to tail ratios is about 20%. However opossum and prairie dog do not at all. The opossum is about 73.47% and the prairie dog is about 14.29%.

Step-by-step explanation:

Answer:

Hamster and lemming have the same ratio of 1/5 and the others are unequal.

Two numbers have square roots about 40 apart. What could they be?

Answers

They could be 7 (49) and 9 (81) or 10 (100) and 12 (144)

The two numbers such that their square roots about 40 apart will be 2401 and 81.

What is a number system?

The number system is a way to represent or express numbers.

A decimal number is a very common number that we use frequently.

Any of the multiple sets of symbols and the guidelines for utilizing them to represent numbers are included in the Number System.

Let's consider the number 8² = 64

Now, 64 - x = 40

x = 64 -40 = 24 and it is not a square of any number.

Take, 7² = 49

49 - x = 40

x = 9 it is a square of 3.

Thus, 7² - 3² = 40

So, 49² = 2401 and 9² = 81

Hence "The two numbers such that their square roots about 40 apart will be 2401 and 81".

For more about the number system,

https://brainly.com/question/22046046

#SPJ25

can someone solve this?

Answers

Answer:

The third one

Step-by-step explanation:

It’s the second one. 5x = y :)

What do you think of my doggo (sorry for bad lighting lol)

Answers

Answer:

I SEE... I SEE

Answer:

I believe it's a winsome pet

Step-by-step explanation:

5 stars

Larry's car depreciated 30% during the first year he owned it. If he paid $24,750 for the car, what was his car worth the second year?

Answers

Answer:

$17,325

Step-by-step explanation:

24,750 × 30/100

= 2,475 × 3

= $7,425

the car is depreciated by $7,425

now the price in the 2nd year is,

24,750 - 7,425

= $17,325

I really need points so I comment sorry I don’t know the answer..ahh

Lorena calculated the slope of the linear function that is represented by the table of values as shown.

x
y
–10
15
–8
27
–6
39
–4
51
–2
63

m = StartFraction y 2 minus y 1 Over x 2 minus x 1 EndFraction = StartFraction 63 minus 51 Over negative 2 minus (negative 4) EndFraction = StartFraction 12 Over negative 6 EndFraction = negative 2.

What did she do wrong?
She used the wrong formula for slope.
She used the wrong points to determine the slope.
She made a mistake when she subtracted x 1 from x 2.
She made a mistake when she subtracted y 1 from y 2.

Answers

Answer: she distributed the x values wrongly

Step-by-step explanation:

-2-(-4) = -2 +4

Answer:

C/or she made a mistake when she subtracted x1 from x2

Step-by-step explanation:

i took the test and i got it right.

What to the power of 2 equals 4?
Whoever answers first I will make them the answer winner king!

Answers

Answer:

2

Step-by-step explanation:

Answer:

2

Step-by-step explanation:

2 times 2=4

Which of the following is the greatest unit rate? *

$35.00 for 700 pieces of gum
$5.99 for a package of three bracelets
$6.50 for 5 drinks
$16.00 for two tickets

Answers

Answer:

It is the last one. (16 for 2 tickets)

Step-by-step explanation:

To make it a unit fraction you have to divide the denominator by itself to get 1. 2 divided by 2 equals 1. To keep the fraction equivalent divide the numerator by 2 as well. That equals 8. This makes the unit rate

1/8 Which is the biggest

Answer:

The gum

Step-by-step explanation:

Please mark me brainlest

Help pls i really need this!!

Answers

Answer: the answer is A

Step-by-step explanation: 400 times 2.5 is 1000 and 250 times 2.5 is 625 and together they equal 1625

Which expression of signed decimal numbers has a positive quotient?
2.5 divided by negative 9.56
Negative 1.7 divided by negative 10.06
Negative 0.3 divided by 9.44
Negative 9.34 divided by 0.55

Answers

Answer:

Negative 1.7 divided by negative 10.06

Step-by-step explanation:

Follow the rule:

A positive divided by a positive is a positive

A negative divided by a positive is a negative

A negative divided by a negative is a negative

Hope this helps!!!

Answer:

(B)

Step-by-step explanation:

4th time trying this question


The ratios 9:18, 12:24, 15:30, 18:36, and 21:42 form a pattern of equivalent ratios in the table below.

A multiplication table. In the row labeled 3, the numbers 9, 12, 15, 18, and 21 are highlighted. In the row labeled 6, the numbers 18, 24, 30, 36, and 42 are highlighted.

Which is another ratio in this pattern?
1:3
6:12
24:27
28:49

Answers

Answer:

6:12

Step-by-step explanation:

the bottom row is in multiples of 3

top is multiples of 2

and they must be double from the neumerator so the answer is 6:12

Help need good answers with explanations. If you don't get it please do not waste my points.

Answers

A) 1

B) 3

C) 5

D) 2

E) 4

Hope this helps :)
Hi! This should be the answers to your problem! ❤️
1
3
5
2
4
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