Mathematics Middle School

Erica can solve 30 addition problems in 15 minutes. If she works at the same rate, how many problems can Erica solve in 2 minutes?

Answers

Answer 1

Answer:

4 problems.

Step-by-step explanation:

30 is double 15,

4 is double 2

Hope I helped!

Answer 2

Answer:

Erica can solve 4 problems in 2mins.

Step-by-step explanation:

30 divided by 15 is 2, meaning she solves 2 problems in 1min. To solve for 2mins you have to multiply 2 by 2 and you get 4.

Related Questions

HELP PLEASE ASAP!!!!!!

Answers

Answer:

B

Step-by-step explanation:

rate change = slope

slope = y2-y1/x2-x1

slope= -3.4-5.4/ 8-(-3)

slope= -4/5

I’m pretty sure it might be B

n an inequality, 0.5 is the greater number. What will the position of the other number be in relation to 0.5 on the vertical number line?

Answers

Answer:

Step-by-step explanation:

It is equal because they both are the same

Answer:

The other number would be located below 0.5 on the vertical number line.

Step-by-step explanation:

Hoped This helped!

What is the perimeter of △RST?

Answers

Answer:

b

Step-by-step explanation:

sorry if its wrong:/

Perimeter of Triangle 3C+√3C+√2C.

The correct option is (C).

What is the perimeter of the triangle?

Perimeter of a triangle = sum of all three sides

Also, the unit of a triangle's perimeter is the same as the units of the lengths of its sides. In case, the units of lengths of its sides are different, then first convert them into the same unit.

Given that:

RUT= RUS= 90°

and SUR= SRU=45

Let RU=C

So, SU=RU=C

and, RS= √2

Since, RUT= 60

then, UT= √3C and RT=2C

now, perimeter of △RST

=RS  +RT+SU+UT

=√2C+2C+C+√3C

=3C+√3C+√2C

Hence, the perimeter of Triangle 3C+√3C+√2C.

Learn more about perimeter of triangle here:

https://brainly.com/question/24388271

#SPJ2

Pentagon M’N’P’Q’R’ is larger than pentagon MNPQR, because the scale factor is greater than 1.

Pentagon M’N’P’Q’R’ is smaller than pentagon MNPQR, because the scale factor is less than 1.

Pentagon M’N’P’Q’R’ is smaller than pentagon MNPQR, because the scale factor is greater than 1.

Pentagon M’N’P’Q’R’ is larger than pentagon MNPQR, because the scale factor is less than 1.

Answers

Answer:

Pentagon M'N'P'Q'R' is smaller than pentagon MNPQR, because the scale factor is less than 1.this should be an answer choice

Step-by-step explanation:

The body of a 154-pound person contains approximately 2×102 milligrams of gold and 6×103 milligrams of aluminum. Based on this information, the number of milligrams of aluminum in the body is how many times greater than the number of milligrams of gold in the body?

can you show your work too?

Answers

Answer:

2 x 1 0^2 and  6 x 10^

Step-by-step explanation:

Hope I helped

Brainliest plz :)

At Mr.Hernandez's floral shop, 1 1/2 dozen roses cost $38.70. In dollars and cents what is the cost of a single rose

Answers

Answer:

$2.15

The rose-buying public still encounters a wide variety in pricing - anything from $10 or under for a dozen red roses at the local corner store to $20 at the supermarket, to more than $90 at a high-end florist

Answer:

$2.15 per rose

Step-by-step explanation:

38.70÷18=2.15

A store sells a hoodie for $45, the sales tax rate in this state is 8%. What is the total price with sales tax applied?

Answers

The answer is $48.60.

The hoodie by itself has a price of $45. If the sales tax if 8% of the price you’d have to calculate the sales tax and add it to the net amount.

(45)(.08) = 3.60

(45) + 3.60 = 48.60
$48.60. multiply 45 by 0.08 to find the tax, which is $3.60. add the price plus the tax and you have the end price, which is $48.60

Please help with algebra!!! ill give brainliest
linear equations with one variable (show work)
9 equations

Answers

Answer:

answer is attached in the image below

17. -6b + 20 = -16
-6b+20-20= -16-20
-6b = -36
b = 6
18. -4m + 2 = 14
-4m + 2 -2 = 14 - 2
-4m = 12
m=-3
19. -9c-4=-4
-9c-4+4=-4+4
-9c=0
c=0

20. 2y- (-10) = 18
2y+10=18
2y+10-10=18-10
2y=8
y=4

21. 1/2g+2=6
0.5g+2=6
0.5g+2-2=6-2
0.5g=4
g = 8

22. 3r-25=5
3r-25+25=5+25
3r = 30
r =10

23. 2/3s-(-4)=8
2/3s+4=8
2/3s+4-4=8-4
2/3s=4
s=6

24. 4/5a+(-5)=0
4/5a-5=0
4/5a-5+5=0+5
4/5a = 5
a= 25/4 aka 6.25

25. -2/7w -6 = -4
-2w/7=2
(-7/2)(-2a/7)=(7/2)•2
a=-7

Please help me with this i dont get it

Answers

I think their right.
Find x than add up all the sides In the formula

make this into three sentences

The rule that the Right of Occupancy is based on the fact that the Federal Government cannot grant what it does not have

Answers

Due to the Right of Occupancy, the Federal Government cannot grant what it does not own. This means that the Government is not allowed to give or take from others what itself doesn't own. This could consist of someone being in court for any reason, but due to the Right of Occupancy, if the court does not have a warrant to search the suspect's property or belongings, they are not allowed to use the suspect's property against them in court due to the fact that it simply isn't theirs.

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)

Mark talked on his cell phone 3 hours over the weekend. Genaro talked on his phone 1 9−− 10hours. How much longer did Mark talk on his phone than Genaro?

Answers

Answer:

3 - 1 9/10 = 2 10/10 - 1 9/10 = 1 1/10 hours

Step-by-step explanation:

Answer:

5 7/10 longer

Step-by-step explanation:

Hope this helps <3

What is the ratio of total shapes to stars in simplest form?

Shape Quantity
Triangles 8
Circles 4
Stars 10
Hearts 3


Group of answer choices

2:5

5:2

25:10

Both B and C are correct

Answers

Answer:

5:2

Step-by-step explanation:

Answer:both b and c are correct

Step-by-step explanation:

C is the actual answer and B is a simplified form

please answer with proof please!!!

Answers

A
Cause it can’t be B cause she’s moving
And if it was D he would be slowing down and C doesn’t match up with the 8hours a day

Answer:

I think its ethier A or C becouse it passes through the 8 hours

Step-by-step explanation:

This table shows the relationship between x and y.

btw i put that on accident

Answers

Answer:

C) 54.5

Step-by-step explanation:

to find the constant of this proportional x and y table;

first divide y by x.

eg. 163.5 divided by 3, which results in 54.5

next, to confirm this is our answer, we need to divide y by x once more.

eg. 327 divided by 6, which also results in 54.5

hope this helped! have a great day/night!! :')  

The answer is C :D Hope i helped

A point has coordinates A(-3, 5). Find the coordinates of its image if it's translated by (x - 2, y + 1)

a. A'(-5, 6)
b. A'(1, 6)
c. A'(-1, 6)
d. A'(-1, 4)

Answers

The answer is A. (-5,6)

I will give brainliest if you get it right and 1st please answer this question?!

Answers

Answer:

2,3 and 6


1 is not
2 is
3 is
4 is not
5 is not
6 is

please help i don't understand. will mark brainliest. answer both questions

Answers

Answer:

both should be rise

Step-by-step explanation:

Answer:

Slope of a horizontal line. When two points have the same y-value, it means they lie on a horizontal line. The slope of such a line is 0, and you will also find this by using the slope formula.

Step-by-step explanation:

this is the answer to question #2. now mark me as the brainlest!

Solving Equations with Variables on Both Sid

Answers

Answer:     -24

Step-by-step explanation:

Answer:

answer is -3

Step-by-step explanation:

Plz :(
A Taxi cab costs $1.50 for the first mile and $0.75 for each additional mile. Which equation could be solved to find how many miles you can travel for $10, given that “x” is the number of additional miles? (Also solve this equation for the number of additional miles.)
A. 1.5x +0.75 = 10; x =6.17
B. 0.75x + 1.5 = 10; x = 11.333..
C. 1.5x -0.75 =10; x =7.17
D. 0.75x – 1.5 =10; x =15.33

Answers

Answer:

B

Step-by-step explanation:

I just used a calculator and did the math

it's b. 1.5 is the initial price for the first mile. then for each mile they add .75 meaning 1.5 + .75x = 10

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 :)

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Answers

The answer would be: The total sales for all three sales stores last month was greater than $300,000.
the total sales for all three stores last month was likely greater than 300,000

A biology class examined some flowers in a local meadow. The students saw 63 perennial flowers and 21 annual flowers. What percentage of the flowers were perennials?

Answers

Answer:

63%

Step-by-step explanation:

Answer:

63%

Step-by-step explanation:

Hope I helped

30 points if you aswer this[tex]\frac{1}{3}x \frac{3}{4} x\frac{4}{5}[/tex]

Answers

Answer:

1/5

Step-by-step explanation:

1/3 x 3/4 x 4/5

1/3 x 3/4 = 3/12

3/12 x 4/5 = 12/60

12/60 = 1/5

The answer is = 12/60

Tom took a trip of 1,020 miles. He traveled by train at 55 miles an hour and the same number of hours by plane at 285 mph. How many hours did the trip take?

8 hours
6 hours
3 hours

Answers

The answer would be 6 hours
HOPE THIS HELPS

Ziann’s weekly earnings were proportional to the number of hours she worked. This table shows the number of hours Susan worked and the amount she earned.
How much money did Ziann earn per hour?

Answers

Answer:

Can't answer.

Step-by-step explanation:

We know that Ziann's earnings were proportional to the hours she worked, but the table shows how much Susan earned, so we don't know how much Ziann earned. We are not told that Ziann and Susan are the same person.

Susan's earnings:

$47.50/(5 hours) = $9.50/hour

According to the table, Susan earned $9.50 per hour.

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.

i will give you a drainlyest and 5 stars if you help me combined the like terms to make a simplified expression -2w-5w=

Answers

Answer:

-7w

Step-by-step explanation:

what is this answer -8x+2=-30

Answers

Answer: x=4

Step-by-step explanation:You subtract the 2 then you get

-8x=-32

Then you divide-8/-32

Then you get

X=4

x=4
I moved the constant to the right, then calculated, then divided both sides to get the answer.

Plz :<

A 60-minute TV program consists of 5 commercials each 2.5 minutes and four equal length entertainment segments. How long is each entertainment segment?
A. 12.5 Minutes
B. 5.875 Minutes
C. 11.875 Minutes
D. 52.5 Minutes

Answers

Answer:

the answer must be A

Step-by-step explanation:

Other Questions
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