Mathematics Middle School

21r<7 please help. I don't even know Algebra.

Answers

Answer 1

Answer:

r < 1/3

Step-by-step explanation:

Answer 2

Answer:

r<1/3

Step-by-step explanation:

21r / 21 = r

7 / 21 = 1/3

Since 21r is less than 7, using the equations shown above, we can also see r (singular) is less than 1/3.

Related Questions

Decide if each equation is true or false.

7⋅8=56
-7⋅8=56
-7⋅-8=-56
-7⋅-8=56
3.5⋅12=42
-3.5⋅-12=-42
-3.5⋅-12=42
-12⋅72=42

Answers

The third and fifth ones are false. Two negative numbers in the same equation make a positive not a negative
True,false,false,true,true,false,true,false.

PLZ HELP BRAINLIEST!!! solve for v


d=m/v

Answers

Answer:

V=M/D

Step-by-step explanation:

D=M/V

multiply both sides by V

divide both sides by d

V=M/D

Find the quotient 288/16 which correct
A:13 R 20
B:14 R 4
C:103 R 20
D:104 R 4

Answers

Answer:

the answer is C

Step-by-step explanation:

It should be 18 but I’m not sure I don’t see that option for the answer choices you provided

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
The equation of the line in this graph is y = _ x +_

Answers

Answer:

y=-2x+3

Step-by-step explanation:

Y=-2x+3






The line passes through the X axis into -2, but it also passes through the y axis which is 3.

Simplify the expression. 12(a−4) The simplified expression is

Answers

Answer: 12a -48

Step-by-step explanation: Distribute the 12 to a and -4 to get 12a -48.

Hope this helps!

Answer:

12a−48

Step-by-step explanation:

12(a−4)

=(12)(a+−4)

=(12)(a)+(12)(−4)

=12a−48

Mark Brainliest?

Try It for Example 1: In the next several games, the pitcher threw a total of 384 pitches and used a fastball 240 times. What decimal should Juanita use to update her report?

Answers

The answer is 0.625!

I need help NOW!!!!!! Thanks!



D
Parallelogra
Base (units) Height (units) Area (units)
m
A
4
6
A-24
B
5
3
A-15
C С
D
Any
Parallelogra
m
b
h
A= bh

Answers

Answer:

Answer: Good thing you provided the image!

Working down the columns:

C base= 2

D base = 4

C height =3

D height = 2

C area = bh = 8

D area = bh = 8

Step-by-step explanation:

Try thinking about drawing a rectangle around the entire image of C and D, connecting each of the corners (sort of like what is being done for B) and then you can perceive the b and h.

The trick to D is to turn your head 90 degrees (or sideways) so you can see those 4 boxes as the base.

Step-by-step explanation:

can someone help me with this please?

Answers

Answer:

Big triangle= 4*1.5=6

Small Triangle= 7.5/1.5=5

Ratio=7.5/5 or 1.5

Step-by-step explanation:

[tex]\frac{7}{10.5}[/tex]=[tex]\frac{x}{7.5}[/tex]

cross multiply

10.5x=52.5

divide both sides by 10.5

x=5

7.5/5= ratio

Organic Whole Wheat Flour Sells in bags Weighing 2.915 Kg A. How much flour is this when rounded to the nearest tenth B. How much flour is this when rounded to the nearest tenth Explain your thinking

Answers

Answer:

2.9 kg

Step-by-step explanation:

If you round 2.915 to the nearest tenth, it would be 2.9. this is because the number to the right of the 9 (1) is below 5.

The amount of flour after rounded to the nearest tenth will be 2.91 kg.

What is rounding off?

Rounding numbers refers to changing a number's digits such that it approximates a value. The provided number is more simply represented by this value. For instance, 700,000 rather than 698,869 could be used to express a town's population.

Given that;

Organic Whole Wheat Flour Sells in bags Weighing 2.915 Kg.

Now,

Since, Organic Whole Wheat Flour Sells in bags Weighing 2.915 Kg.

We know that;

When we round to the nearest tenth we see the right digit of tenth place if it is less than 5 then write same as number but if the number is greater than 5 then add one on the tenth place number.

Hence,

The amount of flour after rounded to the nearest tenth = 2.9

Because,  1 < 5

Thus, The amount of flour after rounded to the nearest tenth = 2.9 kg

Learn more about the rounding number visit:

https://brainly.com/question/1620496

#SPJ2

whats 4a + 298 + 216 + ab + x. also, 2218726+17019

Answers

877 2543 because 4a and 298.is not a

Answer:

1. 197x.

2. 2235745

Step-by-step explanation:

2218726+17019 = 2235745

Sara and Sam are each working on a science project in which they need to research the individual masses of the nine planets (including the dwarf planet Pluto as the ninth planet). Sara completes her data for the planets' masses in kilograms while Sam's data is in milligrams.

Sara:

Planet Mass (in kilograms)
Jupiter 1.989 · 10(27)
Saturn 5.685 · 10(26)
Neptune 1.024 · 10(26)
Uranus 8.681 · 10(25)
Earth 5.974 · 10(24)
Venus 4.869 · 10(24)
Mars 6.419 · 10(23)
Mercury 3.302 · 10(23)
Pluto 1.31 · 10(22)
Sam:

Planet Mass (in milligrams)
Jupiter 1.989 · 10(33)
Saturn 5.685 · 10(32)
Neptune 1.024 · 10(32)
Uranus 8.681 · 10(31)
Earth 5.974 · 10(30)
Venus 4.869 · 10(30)
Mars 6.419 · 10(29)
Mercury 3.302 · 10(29)
Pluto 1.31 · 10(28)
Approximate how many times greater Saturn's mass is than Mercury's.

200,000
2,000,000
2,000
20,000
i put exponents in parenthesis

Answers

The answer is 20,000 times greater. I hope this helps!
I think it is c correct me if I am wrong

Solve for p 1/2p - 1/4p = 4

Answers

Answer:

P = 16

Step-by-step explanation:

See image

the answer is p=16.

Help me with this it’s really important

Answers

Answer

A = 35 degeres and B = - 12

Step-by-step explanation:

For the first one: 47
For the second one:-12

A. (-1,3)
B. (3, -1)
C. (-7, 3)
D. (3, -7)

Answers

Answer:

A. (-1,3)

Step-by-step explanation:

you would move the "P" 3 units to the right then you would move 5 units up as explanied.

Answer:

the answer is a.)

Step-by-step explanation:

look at the left side of the rectangle move it to the right 3 units now look at the bottom move it up 5 units. it should be written (x,y)

Please help me!!!!! (25 points)
Right answers only!!!!!!

Answers

the correct answer would be 8

Answer

8

Step-by-step explanation:

Mk so 1 step is 26 - 18 to find the difference then you check the difference of 35 to 43 , 86 to 94 and you should get 8

I only got 1 hr. left HELP and get brainiest plus a thank you and 5 stars if gotten right. PLZ HELP attachments added.

Answers

Answer:

Step-by-step explanation:

70

1st is D
2nd is B
3rd can’t see all choices
Not sure bout 4 but it’s 5 dollars per person

Find the midpoint of the line segment with end coordinates of: (2,0)and (8,8)

Answers

Answer:

(5 , 4)

Step-by-step explanation:

Midpoint formula:

"Add both "x" coordinates, divide by 2. Add both "y" coordinates, divide by 2."

The answer is ( 1,5)

A rectangular cardboard has dimensions as shown. The length of the cardboard can be found by dividing its area by its width. What is the length of the cardboard in inches? I appreciate all help! :)

Answers

Answer:

8.16666667 square inches

Step-by-step explanation:

36.75/4.5=l

length=8.16666667

Answer:

8 1/6

Step-by-step explanation:

36 3/4 divided by 4 1/2 = 8 1/6

Which number is not in scientific notation? Question 15 options: 1) 0.2 ⋅ 103 2) 3 ⋅ 1028 3) 1.03 ⋅ 10−2 4) 1.5 ⋅ 10−6

Answers

I believe it’s number 2.
The answer is not 2. its 4

the 17 students on the math team want to raise $483.62 to buy practice books. they have already raised 218.25. if each student raises the same amount.How much more money must each student raise.

Answers

Answer: the answer would be 29

Step-by-step explanation

bc first you divide then youmutiple i also checked my work so i know its correct

WOULD YOU PLZ BRAINLIEST PLZ

The answer is $15.61

Explanation: Subtract $218.25 from $483.62 to find out how much money they have left to raise
483.62-218.25=$265.37
Then divide by the number of students so find out how much each needs to raise
265.37/17=$15.61
To check simply multiply 15.61 by 265.37

Convert 19:51 to 12 hour time.

Answers

The answer is 7:51 pm in 12 hour time.

the answer is 7:51 pm

Robin bought a bunch of packages of gum at the gas station 8 1/7 of a package each week. How Much would she have eaten in 4 weeks.?

Answers

32 4/7
Multiply 8 1/7 by4 = 32 4/7
About 33. You just multiply 8 1/7 x 4 = 32.57 which would be rounded to 33.

help please and tyyy

Answers

Answer:

multiply each number together

How you get your answer is multiply all the numbers together hope this helps:)

Amira needs 24 and StartFraction 3 over 10 EndFraction feet of fencing material to make a fence for her small garden. Which number represents the additive inverse of this number?

Answers

Answer: -24 3/10

Step-by-step explanation: We have been given that Amira needs  feet of fencing material to make a fence for her small garden. We are asked to find the additive inverse of our given number.

We know that additive inverse of a number is that number, which we add to a number to create the sum of zero.

Answer

-24 3/10

Step by step

Part 1) Jessica has $250.78 in her bank account. She buys a bike for $300.36. What is her account balance now? Part 2) Using your answer from part one, if Jessica earns $75.50 the next week from delivering newspapers and deposits it in her account, what will her account balance be then?

Answers

Answer:

Part 1. Jessica will have a negative balance of $49.58.

Part. 2 Jessica will have a positive balance of $25.92

Step-by-step explanation:

Part 1. subtract $300.36 from $250.78.

Part 2. Add $75.50 to $-49.58

Answer:

25.92

Step-by-step explanation:

250.78 - 300.36 = - 49.58 +75.50 = 29.92

another challenge
[tex]6 \times 2y \div 3[/tex]
​

Answers

Answer:

2x²y

Step-by-step explanation:

Add. −5+(−2)=
Pls help

Answers

Answer: -7

Step-by-step explanation: minus and a plus makes a minus, then, add you ad the -5 and -2 which equals -7

the answer is -7, i used a calculator called desmos and it tells you the answer!

I need help NOW!!!!!!!!!!!



A student said, “We can't find the area of
the shaded region because the shape has
many different measurements instead of
just a length and a width that we could
e multiply."
35
10
10
15
10
30
15
10
60

Answers

Its just 30x60=1800...right?

I think I agree with Brainliest

David bought 5 bags of rice for his restaurant. Each bag weighed 5.3 kilograms. How many kilograms of rice did he buy total

Answers

Answer:

multiply 5 x 5.3 =?

Step-by-step explanation:

 5.0

x 5.3

-----------

26.5

23 + 18 divided (8-2) +3 ANSWER FAST PLS

Answers

Answer:

Step-by-step explanation:

Use  PEMDAS rule -----> Parenthesis , Exponent, Multiplication & Division and then Addition & subtraction.

23 + 18 ÷ (8 - 2) + 3  = 23 + 18 ÷ 6 + 3     {Now do division}

                                = 23 + 3 + 3

                                = 29

the is the answer, you have to use PEMDAS for this
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