Mathematics Middle School

Sally's mother wants to buy a cell phone. The price of the cell phone she wants increased this week from $200 to $240. What is the percent increase in the price of the cell phone?

Answers

Answer 1

Answer:

20 percent

Step-by-step explanation:

200 divided by 5 is 40

Answer 2
Ok so 200 + 40 is 240 but the percentage increase is 20% because because the new value is greater than the old value.

Related Questions

From 11:15 to 11:30 AM, a whale’s elevation changed from –80 meters to –101 meters. If the whale’s elevation is changing at a constant rate, what time was the whale’s elevation –94 meters?

Answers

11:25 is correct because 15 minutes pass between 11:15 and 11:30. In those 15 minutes the whale rose 21ft. the Unit rate is 1.4m/ min.
The distance between -80 and -94 is 14 meters. At a rate of 1.4m/min it will take the whale 10 mins to reach -94m. Whale started at -80 at 11:15, and ten mins after that is 11:25

The time was 11:25 the whale’s elevation is 94 meters because 15 minutes elapse between 11:15 and 11:30.

What is the rate?

A rate is a type of ratio that compares two values with distinct units. A rate is expressed as a fraction.

As per the given question,

From 11:15 to 11:30 AM, a whale’s elevation changed from –80 meters to –101 meters.

The whale climbed 21 feet in 15 minutes. The unit rate is 1.4 meters per minute.

There are 14 meters between -80 and -94. The whale will take 10 minutes to reach -94m at a speed of 1.4m/min. The whale began at -80 at 11:15, and 10 minutes later it is 11:25.

Thus, the time was 11:25 the whale’s elevation is 94 meters because 15 minutes elapse between 11:15 and 11:30.

To learn more about the rate click here :

https://brainly.com/question/12786410

#SPJ2

PLZZZ 15 points and BRAINLIEST
A pharmacist mixes two different strengths of peroxide. If she mixes a 1% with a 9% solution to obtain 60mL of a 4% solution, how many mL of each type of solution does she need?

Answers

Pretty sure it’s 8.4 ml

Explanation:

Add all the percentages=14%

Divide 14% by 60ml
* EX. How to calculate percentage of a number. Use the percentage formula: P% * X = Y
Convert the problem to an equation using the percentage formula: P% * X = Y.
P is 10%, X is 150, so the equation is 10% * 150 = Y.
Convert 10% to a decimal by removing the percent sign and dividing by 100: 10/100 = 0.10.*
You get 8.4ml

Starting at 1:00 p.m., the temperature changes −4 degrees Fahrenheit per hour. Write and solve an equation to find how many hours x it will take to reach −1°F.

I NEED AN EQUATION NOT AN ANSWER

Answers

Answer:

3 hours ?

Step-by-step explanation:

A submarine descended 500 feet below sea level. It then descended another 275 feet. Write and then evaluate a subtraction expression to determine the new position of the submarine.

Answers

Answer:

-500-275= -775

or

-500+-275=-775

Step-by-step explanation:

you could also do:
0-500-275=-775

PLEASE MAKE SURE HELP ME!

Answers

Answer:

1. The first problem is wrong, it should be 0.5(3(15) + 2(20)) because the parentheses make sure that every purchased item is being divided by 2 (multiplying by 0.5 is the same as dividing by 2)

2. The second problem is partially correct. The first two answers you have checked are correct, but the last one is wrong. The third answer should be 6 + 12 instead because that's just a simplified version of 2(3) + 6(2), meaning they are equal

3. I cannot read your answers in the "Why or Why Not" column in the third problem, but the answers you gave in the "Evaluate" and "Does It Work?" columns are all correct.

The figure below shows the quotient of Fraction 2 over 5 divided by Fraction 1 over 10.

Answers

Answer:

3

Step-by-step explanation:3

2/5 / 1/10

2/5*10/1= 20/5

Find the angle for a ​

Answers

Answer:

69

Step-by-step explanation:

The answer is 69.

69+52=121

help please, my parents are mad...

Answers

Answer:

(-5,10)

Step-by-step explanation:

Plug the value of y into the second equation

-3x-5=4x+30

-3x-4x=30+5

-7x=35

x=35/-7=-5

put the value of x into any of the equations

y=-3(-5)-5

y=15-5=10

(-5,10) Should be the correct answer sorry if I’m wrong.

please help!!!!!! i really need it thanks.

Answers

I I can’t even see the question
Sorry
Can’t answer

Answer:

number 1 is d

number 2 is c

Write in the missing temutures help please

Answers

Answer: 60, 0, -8, -14

Step-by-step explanation:

YW BRAINLIEST PLEASE

Answer:

1. 60

2. 0

3. -8

4. -14

Step-by-step explanation:

Ramon has 2/3 cup of cake mix. If each cake requires
2/3 cup of cake mix, how many cakes can Ramon make using all the mix?

Answers

He can only make 1 cake
1 because he has 2/3 cup of cake mix and you need 2/3 to make one cake. Therefore it is 1

There are 24 female performers in a dance recital. The ratio of men to women is 3:4. How many men are there in the dance recital?

Answers

There would be 32 men in the dance recital.
24/3 = 8
8 times 4 = 32
24/32 = 3/4

Answer:

There are 18 men at the dance recital.

Step-by-step explanation:

3:4

X:24

24/4=6

6x3=18

18:24

find the surface area, please

Answers

Answer:

52 cm^2

Step-by-step explanation:

6+12+8+26

26x2=52

Answer:24 or 32

i hope this helps and stay safe!!!!! <3

Daniella has a baking pan shaped like a rectangular prism. It measures 16in. wide and 3.75 in. high. If the volume of Daniella’s pan is 1,050 in. , what is its length?

Answers

Answer:

17.5, or 35/2

Step-by-step explanation:

First of all, the formula for volume is V=lwh. Replace V with 1050, w with 16m, and h with 3.75, since these values are already given.

The equation should look like this:

1050 = l*16*3.75

By solving for l, you'll get 17.5, or 35/2

That’s a good answer I did and what I did it was good

Solve this question.

Answers

i cant see the picture but i need pointss lamaa
Fr same here I need points

PLEASE HELP ME!!
I'M IN A PRACTICE TEST!!!

Answers

Answer:

the first selection hope thus helps if it is wrong sorry

helphelphelp please!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

cheryl

Step-by-step explanation:

Answer:

PRT B: Cheryl owes the bank more because the absolute value of -3.00 is 3.00, and the absolute value of -2.75 is 2.75 and 3 is greater than 2.75

Step-by-step explanation:

Dont know how i do part A

SHOW UR WORK!!! WILL GIVE BRAINLEST
The right hexagonal pyramid has a hexagon base with equal-length sides. The lateral faces of the pyramid are all triangles (that are exact copies of one another) with heights of 18 ft. Find the surface area of the pyramid.

Answers

I don’t know sorry I can’t help at least you found one

look at the picture! PLEASE I NEED IT NOW
Thanks.

Answers

Answer:

t's 11 weeks because if you multiply 20*11 you get 220 then add 80 and you have $300

Step-by-step explanation:

D because you get 300$

2 x 10
i need help pls

Answers

2 x 10 = 20

Geniussss

Explain step by step how to do 10.25 x .15.

Answers

Answer:

1.5375

Step-by-step explanation:

Multiply without the decimal points, then put the decimal point in the final answer

1025 x 15 = 15375

....

10.25 has TWO decimal places

0.15 has TWO decimal places

Therefore, when you multiply with the decimal points (10.25 x 0.15), the answer should have FOUR total decimal places.

So the answer is 1.5375

Yes that is the answer

Three salesmen work for the same company, selling the same product. And, although they are all gold on
a weekly basis, each salesman earns his paycheck differently
Salesman A works strictly on commission. He earns $65 per sale, with a maximum weekly commission of
$1,300
Salesman B earns a weekly base salary of $300, plus a commission of $40 per sale. There are no limits
on the amount of commission he can earn
Salesman C does not corn any commission. His weekly salary is $900,
Suppose Salesmen A and B have the same number of sales and earn the same amount in Week of this
month. How many sales must they both have had?

Answers

Answer:

none of them are proportional.  proportional would mean that they would earn 10 times as much if they sold 10 times as much.  

A = 65 s  maximum of 1300

B = 300 + 40 s

C = 900

Step-by-step explanation:

plz someone help me with this problem

Answers

D

I hope this helps!!!

COME GET SOME COINS >:)

Answers

Answer:

ok lol

Step-by-step explanation:

Answer:

yes please

Step-by-step explanation:

Help please! math question!! will give 20 points and brainliest!!

Answers

An equation to find the dimensions of his backyard is 116 divided by 4
that makes his backyard 29 feet on each side if his backyard is a perfect square.
No, his backyard is not big enough for a pool that is 900 feet.
if you multiply 29x29 (to find the area of his back yard), the area is 841 feet, which makes his backyard too small for a pool that big

You need a piece of paper to measure 65.31 cm. If you tape two together that each measure 38.9, how much do you need to cut off?

Answers

Answer:

12.49 cm

Step-by-step explanation:

One paper is 38.9, so two papers are 77.8 cm.

To find the length you need to cut off, you need to find how much extra you have.

77.8 - 65.31 = 12.49 cm

Answer:

you would need cut off 12.49cm of paper

Step-by-step explanation:

Identify the DOMAIN for the ordered pairs

Answers

(-∞, -3) u (-3,-1) u (-1,1) u (1, ∞)
A=1 b=1.5c=-1.5d=1 hope that helps

Trapezoid ABCD is congruent to trapezoid A′′B′′C′′D′′ .

Which sequence of transformations could have been used to transform trapezoid ABCD to produce ​ trapezoid A′′B′′C′′D′′ ​ ?


​ Trapezoid ABCD ​ was translated 7 units up and then 12 units left.

​ Trapezoid ABCD ​ was reflected across the y-axis and then across the x-axis.

​ Trapezoid ABCD ​ was reflected across the y-axis and then translated 7 units up.

​ Trapezoid ABCD ​ was reflected across the x-axis and then across the y-axis.

Answers

Answer:

It's B). Trapezoid ABCD ​ was reflected across the y-axis and then translated 7 units up.

Step-by-step explanation:

just took the test

what is 257x50=


what is the anserw

Answers

Answer:

12,850

Step-by-step explanation:

The answer is 12,850

Peter wants to complete 90% of his practice session. If he has completed 24 minutes out of 30 , how many more minutes does Peter need to complete?

Answers

Answer:

he needs 6 more minutes

Step-by-step explanation:

Answer:

27

Step-by-step explanation: can i get briliantst i need 1 more to level up

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