Mathematics Middle School

Gena wants to estimate the quotient of –21.87 divided by 4.79. Which expression shows the estimate using front-end estimation?
-21 ÷ 4
-21 ÷ 5
-20 ÷ 4
-20 ÷ 5

Answers

Answer 1

Answer:b

Step-by-step explanations:

Answer 2
It is close to problem b

Related Questions

Numbers and Operations KA 8th grade- correct answers only ty, and have a great day folks (7 pts)

Numbers and Operations KA 8th grade- correct answers only ty, and have a great day folks (7 pts)

Answers

Answer:c

Step-by-step explanation:

Answer:

it's c

Step-by-step explanation:

khan academy

20 pts:

Here are points A-E.

a. Which point is the image of B using A as the center of dilation and with a scale factor of 2? Select Choice:

b. Which point is the image of A using B as the center of dilation and with a scale factor of 2? Select Choice:

c. Which point is the image of B using A as the center of dilation and with a scale factor of 1/2? Select Choice:

d. Which point is the image of A using B as the center of dilation and with a scale factor of 1/2? Select Choice:

20 pts:Here are points A-E. a. Which point is the image of B using A as the center of dilation and with

Answers

Answer:

a's answer = E

b's answer = C

c 's answer= D

d 's answer= A

The answers for ABCD are : E,C,D,A

Could somebody help w/ this? :>

Could somebody help w/ this? :>

Answers

What’s the question-

Please Help ME! TIMED!!!

Please Help ME! TIMED!!!

Answers

Answer:1/2

Step-by-step explanation:

Wat is the product of 8/9 and 2/7

Answers

Answer:

16/63

Step-by-step explanation:

Given problem,

→ (8/9) × (2/7)

Let's solve the problem,

→ (8/9) × (2/7)

→ (8 × 2)/(9 × 7)

→ 16/63

Hence, answer is 16/63.

There were 9/12 gallons of white paint in storage. William used 2/7 of the paint for the fence. How much paint did he use?

Answers

change denominator to common fraction

9/12 turns into 63/84

2/7 turns into 24/84

there was 63/84 gallons of paint and he used 24/84

simplify u get 6/21 gallons of paint used i believe

The simplified answer is 6/21

(x)2+3 help help plss

Answers

Answer:

2x+3

Step-by-step explanation:

()x2+3 simplifies to

2x+3

Answer:

2x+3

Step-by-step explanation:

The x is only multipled by the 2 not the 3

What value competes the table to make the relationship between the two quantities proportional? Explain you’re reasoning.

What value competes the table to make the relationship between the two quantities proportional? Explain

Answers

9/40.5=10/x
9x=405
X =45
When you set a proportion you can find the ? Value by cross multiplication

ill give 60 pointsssssss

ill give 60 pointsssssss

Answers

Answer: (x, y) = (x-2, y + 9)

Step-by-step explanation: pay attention in class next time.

Answer:

(x, y) = (x-2, y + 9)

Step-by-step explanation:

I really hope this helps

I need help on this algebra

I need help on this algebra

Answers

Since the population increases by 7 percent each year, we can multiply 850 by 1.07 seven times. In other words, we can do 850 • 1.07^7. This is equal to about 1365.

If xx and y vary directly and y is 21 when x is 7, find y when x is 5

Answers

Answer:

y = 15

Step-by-step explanation:

We need to solve for k

y = x

21 = 7k  Divide both sides by 7 to solve for k

3 = k

y = xk

y = 5(3)

y = 15

Answer: y = 15

Step-by-step explanation:  

The project will cost $___.

The project will cost $___.

Answers

Answer:

$2.03

Step-by-step explanation:

$0.98

+$1.05

The project will cost $2.03

Find the approximate radius of a circle with a circumference of 2 kilometers. Use 3.14 for π. Round to the nearest hundredth if necessary.

Answers

Answer:

0.32 (rounded to the nearest hundredth)

Step-by-step explanation:

If you have any questions ask me please! :)

Answer:

0.32 km

Step-by-step explanation:

Using the formula r = c / (2 * π), where c = 2 kilometers and π = 3.14, we can calculate the radius as:

r = 2 km / (2 * 3.14)

r = 2 km / 6.28

r = 0.31847133758 km

Rounding this to the nearest hundredth gives:r ≈ 0.32 km

Therefore, the approximate radius of the circle is 0.32 kilometers.

Wendy did a survey of four bird parks and wrote the following observations:

Bird Park Survey
Park Number of Blue Birds Total Number of Birds
A 23 96
B 41 72
C 40 78
D 24 62
Based on the survey, which park had the greatest percentage of blue birds? (1 point)

Group of answer choices

Park A

Park B

Park C

Park D

Answers

B hope u get it right
i think it’s B , ( park B )

Find the algebraic expression:
36a+28

Answers

Answer:

Step-by-step explanation:

4(9a+7)

Please Mark me brainiest
Find the algebraic expression:36a+28

(equations with Variables on Both sides) :)

(equations with Variables on Both sides) :)

Answers

Answer: 72

Step-by-step explanation:  Sorry for answering it after someone already answered it i just need points :)

solve this equation 3/2x+5=14

Answers

Answer:

x=6

Step-by-step explanation:

3/2x+5=14

3/2x=14-5

=9

x=9÷3/2

=6

Answer:

hello :)

x = 6

plzz help with math
attachment included

plzz help with mathattachment included

Answers

Answer:

C. y - 4 = 2(x - 4)

Step-by-step explanation:

y - 4 = 2(x - 4)   ,  if x = 4

y - 4 = 2(4 - 4)

y - 4 = 8 - 8

y = 4

Then y = 4

Answer:

C. y - 4 = 2 ( x - 4 )

according to Microsoft Math

plzz help with mathattachment included

need answers to question below :) will give crown to the first one to answer

need answers to question below :) will give crown to the first one to answer

Answers

Unfortunately I'm unable to understand

Can someone please help? fractions w/ percetages. image down below.

Can someone please help? fractions w/ percetages. image down below.

Answers

1. 73
2.10
3.35
4.40
5.i don’t know
6. 70
5. 25% Explanation: The image shows 2/8 filled in which simplifies to 1/4 which is a quarter. A quarter is 25%

Some students recorded how many minutes they spent on the phone in one day. They put the results in a Stem-and-Leaf Plot.



What is the mean number of minutes spent on the phone?

Some students recorded how many minutes they spent on the phone in one day. They put the results in a

Answers

Answer:   31

Explanation:

The data from the stem-and-leaf plot is:

10,

24,25,26,

30,30,32,33,

40,45,46

Add up those values

10+24+25+26+30+30+32+33+40+45+46 = 341

Then divide over n = 11 which is the sample size.

341/11 = 31 is the arithmetic mean.

Answer:

341/11 = 31 is the arithmetic mean.

Step-by-step explanation:

Please Help
I need an answer ASAP

Please Help I need an answer ASAP

Answers

i believe the the answer is 27
I believe it’s right to

Translate the sentence into an inequality. A number b increased by 6 is greater than "-27."

Answers

Answer:

b+6>-27

Step-by-step explanation:

b

b+6

Answer=b+6>-27

A concise answer:b+6>-27
b>-33

Step-by-step explanation
And by transposition, you can move the plus 6 to the right of the inequality sign, and change the plus to the minus, so you just compute the minus 27 plus 6. b >-33

helppppppppp :pppppppp

helppppppppp :pppppppp

Answers

Answer:

2

Step-by-step explanation:

1/2n + 2 = 6

1/2n = 4

n = 2

Answer:

n=8

Step-by-step explanation:

The height of a baseball in feet x seconds after a batter hits it can be represented by the function f(x)=−2x2+10. How many feet high is the baseball after 2 seconds?

Answers

Answer:

So, at 2 seconds the baseball reaches its maximum height and its maximum height is 69 feets.

Step-by-step explanation:

the heigh of the baseball after 2 seconds would be 69 ft

PLEASE HELPPP
a hot water tank was full of hot water before eddy used 15 gallons to wash clothes now there is only 80% of the water. how much water, in gallons, does the hot water tank hold?

Answers

Answer: 12 gallons are left in the hot water tank.

Why?: Take 80 percent of 15 gallons.

Suppose a poll of 30 people in a neighborhood recorded 17 “Yes” votes. What would be the best estimate of the total number of “Yes” votes in the neighborhood if it consists of 750 total voters?

Answers

Answer:

it would be 30;17 ratio so the answer would be 580

Step-by-step explanation:

What is -4/7 divided by 5?

Answers

Answer:

-4/35

Step-by-step explanation:

-4/35. use keep change flip with -4/7 / 5/1, KCF it to -4/7 x 1/5 then top times top bottom times bottom and get -4/35.

hello :> Can someone help please? if you can a brief explanation would be nice. ty !

hello :> Can someone help please? if you can a brief explanation would be nice. ty !

Answers

Answer:

x = 12. 4¯

(the 4 is supposed to be under the line)

The line sgnifies that the number goes on forever, such as

12.444444444444 and so forth

anyways, youre going to use "cross multiply and divide" which means you multipy the two number on one side top, and the other bottom. Make sure its the one that does have the x!

I multipled 7 * 8 which equals 56, and the leftover number, which is 4.5 is what i divide. When we divide that we get our answer, which is x.

Hope this helped!!

Step-by-step explanation:

Answer:

x= 12.444

Step-by-step explanation:

The fractions are equal.

7÷4.5= 1.555

8·1.555=12.444

x=12.444

I hope you understand this but if you need further explanation, just tell me :P

What possible transforms are shown below?


A reflection in the y-axis

A translation 4 units to the left

A rotation of 90°

A reflection in the x-axis

What possible transforms are shown below?A reflection in the y-axisA translation 4 units to the leftA

Answers

Answer: A reflection in the y-axis, a rotation of 90 degrees.
Reflection across y axis
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