Mathematics Middle School

2 + 7 = 4 + 1 (x ) − x 4
may give brainliest only IF your explain how you got your answer. And I will thank you and all that (15 points:))

Answers

Answer 1
9 = 4 + x - 4x minus 4
5 = x - 4x
5 = -3x divide by -3
-3/5 = x
Answer 2
To solve this we know that 2+7=9 so for 4+1(x)-x4 to equal 9 you would first multiply x and 4 to get 4x. Next you would subtract 1x-4x which equals -3x+4 . What you do to the right you do to the left so 9-4=5. Which you the have 5=(-3x) so you then divide the 3x by 3 which leaves you with x. So x = -5/3 .

Related Questions

Its for science but its got math involved
its got to do with speed distance and time​

Answers

for 1

distance:1, 1, 1.3, 1.5, 2, 2.3, 2.5, 3 ,3.2, 4

time. :1, 2, 3 , 4 , 5 , 6 , 7 , 8 ,. 9 ,10

for 2

distance:1.5, 2, 3.2, 4.2, 5, 6, 7, 8

time. : 1 , 2, 3 , 4. , 5, 6, 7, 8

at 5 seconds which travelled the greatest distance : snail 2

which travelled a greater distance:snail 2

what is the speed of snail 1 at 8 second :

distance = 3. Time = 8

speed = distance

time

speed = 8

3

speed =2.66

approximately = 2.7. or 3

if you do this and explain how to do it i will rait you 5 stars and give you a brainlyieist it has to be simplify 2(5+3x)+(x+10)

Answers

Answer:

20+7x

Step-by-step explanation:

you'd multiply 2 by 5 and 2 by 3x which will give you 10+ 6x; Then add the others : 2(5+3x)+(x+10) would be 10+6x+x+10 so its 20+7x.     .

Answer: 30+4x or 2(15+2x)

Step-by-step explanation:

So the way you would do this is actually kinda simple.

You question is 2(5+3x)+(x+10)

First you wanna add the common number together. So you would change you problem to

2(5+10)+(x+3x)

Now you want to start by solving 2(5+10)

The two on the outside means you multiply so you would do

2x5+2x10 you would get the answer 10+20=30

Now you’re equation is 30+(x+3x)

So now you need to do (x+3x) in this case we would make X=1

So you do 1+3(1) or 1+(3x1) And you get 4x

Now you have the answer 30+4x or to siplfy it you get 2(15+2x)

Hope this helps you xoxo

Write the following number in standard form: 34.71 - 10^-5 =

Answers

Answer:

0.000036

Step-by-step explanation:

0.000036 is the correct answer :)

In Mark's collections, the ratio of basketball cards to football cards is 7 to 4.

Which could represent the numbers of football and basketball cards?


71 basketball cards, 40 football cards


63 basketball cards, 36 football cards


35 basketball cards, 24 football cards



24 basketball cards, 42 football cards

Answers

Answer:

B

Step-by-step explanation:

7x9=63 also 4x9=36 so even though there larger numbers it still is the same ratio

B. 63 basketball cards, 36 football cards

Part A and B Please 10 points

Answers

For part a I would say you can’t use that translation to change it back to the original triangle. I tried the rule out for myself


My coordinate was 3, 6 and applied the -7 -6 rule and got -4,0.

Then I used the rule that they have to translate it back which was -6 -7 and there’s no way it can be translated back to 3, 6

So the answer is no the rule can’t be used to translate it back


Can you mark branliest
same thing the person above said

Simplify to create an equivalent expression.
3(2+6d)-5=3(2+6d)−5=?
can someone tell me how i solve this i will give brainliest to the best answer

Answers

Answer:

3(2+6d)-5=3

(2+6d)−5=?

Step-by-step explanation:

18d+1

Exact Form:

d=19d=19

Decimal Form:

d=0.¯1d=0.1‾

First solve the ones in the parentheses if not remember there’s always calculators

All the fudge machines at a chocolate factory work at the same rate. Six machines working simultaneously can complete a big order in 22 hours.

How many hours would it take to fill the order if the number of working machines increased by a factor of 2?

Answers

Answer:

11

Step-by-step explanation:

A cat had a litter of 4 kittens. Two of the kittens weighed 2 1/2 ounces each, 1 kitten weighed 3ounces, and 1 1 kitten weighed 4 ounces. What is the mean weight of the kittens from the litter?

Answers

Answer:

The answer is 13

Step-by-step explanation:

2 1/2 x 2 = 5

11 x 4 = 44

1 x 3 = 3

44 + 3 + 5 = 52

52 / 4 = 13

Glad to help !

Are the shapes similar?

Yes
No

Attached photo above

Answers

Yes they are similar

Answer:

yes

Step-by-step explanation:

They are both robasus and both have parallel lines

choose the translation that best fits this expression: -1/6 + 3x - 2y

Answers

Answer:

answer choice 2

Step-by-step explanation:

Answer: 2
Explanation: Common Sense 2

Khan academy question! correct answer gets brainlyest!

Answers

Answer:

x= -9.5

Step-by-step explanation:

-4.75 = x/2

Multply both sides by 2.

-4.75(2) = x/2(2)

-4.75(2) = 2/2

-9.5 = 1

-9.5 is the answer I think

Think about how you can use absolute value notation to express the distance between two points on a coordinate graph. For each pair of points below, find the distance between the given points and express your work using absolute value symbols. Show your work.

(4, 9) and ( –5, 9)
(7, –1) and (7, –4)
(0, 9) and (0, –7)
(4, –8) and (–10, –8)

Answers

Answer:

(4, 9) and (-10, -8)

Step-by-step explanation:

Diana is painting statues. She has 7/8 of a liter of paint remaining. Each statue requires 1/20 of a liter of paint. How many statues can she paint?

Answers

Answer:

question is incomplete. A complete question is ----> Diana is painting statues. She has 7/8 of a liter of paint remaining. Each statue requires 1/16 of a liter of paint. find the number of statues.

each statue requires 1/16th of a liter of paint.

so, in a liter , 16th statues can be painted by Diana.

but A/C to question,

she has 7/8 of a liter of paint remaining.

so, we have to find how many statues she can paint in 7/8 litres.

so, number of statues = 7/8 × 16 = 14

Step-by-step explanation:

she can paint 10 statues! hope this helps! :)

Which expression shows the result of applying the distributive property to −2(13x−15)?


23x−25

−23x−25

−23x+25

23x+25

Answers

Answer:

none of these answers are right.

Step-by-step explanation:

The correct answer would be

-26x+30

because you would do -2 times 13x and 2 times -15 to get -26x and 30, respectively. You would get the answer -26x + 30.

Hope this helps :)

Answer:

-26x+30

Step-by-step explanation:

Because -2(13x-15) turns into (-2)(13x)-(-2)(15) which equals -26x+30

I need help overdo! I will give brainlist!

1. It takes Jada 20 minutes to walk to school. It takes Andre 80% as long to walk to school. How long does it take Andre to talk to school?


2. A jet plane can carry up to 200,000 liters of fuel. It used 130,000 liters of fuel during a flight. What percentage of the fuel capacity did it use on this flight?

Answers

Answer:

1. 20 (.8) = 16

It takes him 16 minutes to walk to school.  

This is because 80% as a decimal is .8 and you multiply that by how long it takes Person A to walk and you get 16.

2. 65%

Given: Full capacity=200000 litres

Amount of fuel used 130000/200000x100

Solving it, we will get 65%

Step-by-step explanation:

Answer:

1. 16 minutes

2. 65%

Step-by-step explanation:

For question 1: 20 x 0.8 = 16.

For question 2: 130000/200000 = 0.65 = 65%.

plssssssssssssssssssssssssssssssssssssss i really need help
will give brianly to frist correct anwser

Answers

Answer:

i don't know because i am in 3rd grade

Step-by-step explanation:

but this is my guess 1.04

Answer:

1) Square, 2) Isosceles Triangle, 3 ) Rectangle, 4) 16 units, 5 ) 18 units

Step-by-step explanation:

Each week, Sachi has 3 soccer practices that each last 45 minutes. Write the unit rate in minutes per practice. Then find the total time she practices soccer each week.

Answers

ok! I'm pretty sure the answer is 135. But I could be wrong.

Explanation!

3 x 45 = 135.

So your answer would be 135.

Please correct me if Im wrong. Thank You!

Maybe brainliest? (but only if right lol)

consider the equation 8x-2y=24. Select True or False for each statement.

Answers

Answer:

c

Step-by-step explanation:

the answer is c hehehe

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.

Show that the ratios
10/20
and
30/60
form a proportion by finding a common multiplier.
Show that the ratios in part (a) are equal by writing them in simplest form.

Answers

Answer:

Step-by-step explanation:

(A) We need to show both fraction of same proportion.

Ratio 1:  

If we multiply by 3 at numerator and denominator

(B) Now we simplify both ration into simplest form

Step-by-step explanation:

Solving Equations with Variables on Both Sid

Answers

Answer:     -24

Step-by-step explanation:

Answer:

answer is -3

Step-by-step explanation:

Please help? tysvm! :D

Answers

Answer:

Area: C

Perimeter: A

Volume: B

cubic units: D

Answer:

Area=C

Perimeter= A

Volume=B

Cubic Units= D

Step-by-step explanation:

Area is the amount of 2-dimensional object.

Perimeter is the distance around a two-dimensional object.

Volume is the number of cubic units needed to fill the space inside a three-dimensional figure.

Cubic Units is the unit used to measure volume

A plant grew 7 inches in 5 months. The plant grows the same amount each month. Use this rate to complete this table.​

Answers

Answer:

month    height

1                1.4

2               2.8

3               4.2

4               5.6

5                7

6               8.4

7                9.8

Step-by-step explanation:

Answer: OK above




Purposely

I haven't started learning variables, and stuff like that yet in class, and I wanna be ahead, so can somebody teach me?

Answers

Answer:

Step-by-step explanation

its really simple u replace the letter with the value they have given u

t= 6

= 6x6-20-32u

u=1/4

=36-20-32x1/4

Hey, so in this case, the variable are t and u.
They gave you the numbers that each variable represents. Which are:
t=6 and u=1/4
So now what you need to do is, replace the variables with the numbers they represent in the equation. So it’s gonna be:
6(6)-20-32(1/4)
So now use PEMDAS to calculate. PEMDAS (parentheses - exponents - multiplication - decision - addition - subtraction)

So multiply 6 with 6, and then multiple 32 with 1/4.
36-20-8
Now subtract to get the answer.

Answer:
36-20-8= 8

The answer is 8

Taco Delight gives a free taco to every 12th customer and a free dessert to every 15th customer. Which customer would be the first one to receive both a free taco and a free dessert? Which customer would be the second one to receive a free taco and free desert?

Answers

Answer:

8th customer when i did the math

Step-by-step explanation:

...

Answer:

the first person to get a free taco would be the 60th customer since 60 is a common multiple of both 12 and 15 and I believe the second would be 120th customer

I need some help with this question
Help needed!!

Answers

the answer is d i think
I think it’s d. Hope it’s right.

Math! Help please!
A B C or D?

Answers

Answer:

B

Step-by-step explanation:

a proportional relationship is y = constant * x

* = multiplication

2. a 3/8 pound piece of cheesecake contains 4 servings how much cheese is in 1 serving

Answers

Answer:

3/32

Step-by-step explanation:

I am simply built different


10.6664 because 1/8 of a cheesecake is 1.3333 servings and if you multiply that by 8 it equals 10.6664

Simplify 12 to the 2nd power times 12 to the 3rd power

Answers

c, you add the powers together and it makes 12 to the 5th power

-6x > 30 Please help ! :)

Answers

X < -5 :) I know I didn’t do an explanation but you just have multiply like 5x6=30 >:)

Sam rode his bike 7 and one-half miles on Monday, 4 miles on Tuesday, and 6 and one-third miles on Wednesday. How many miles did he ride altogether?

A. 17 and two-fifths
B. 17 and three-fifths
C. 17 and one-sixth
D. 17 and five-sixths

Answers

Answer:

17 and 5/6

Step-by-step explanation:

   7 1/2 mi. + 4 mi. + 6 1/3 mi.

=   7 1/2 mi. + 10 1/3 mi.

1/2 = 6/12

1/3 = 4/12

7 6/12 mi. + 10 4/12 mi.

= 17 10/12 mi.

= 17 5/6 mi.

Answer:

add 7 6 and 4 then add 1 half and 1 third of a mile ( a mile is about 5000 feet)

Step-by-step explanation:

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