Mathematics College

Heather studied for 30 minutes several days in a row. Before her test, she also studied for 10 more minutes. The total amount of time she spent studying was 280 minutes. Write and solve an equation to determine how many days she studied. Let d represent the number of days.

Answers

Answer 1

Answer:

9 days

Step-by-step explanation:

280=30d+10

270=30d

9=d

Related Questions

Joey and Emily's teacher gave them each a triangle divided into three parts-A, B, and C-which looked like the triangle
shown below. They were told to cut the pieces apart and rearrange them into a figure that will prove that the sum of the
interior angles of a triangle is always equal to 180°.

Answers

Answer:Emily, because all the vertices of the original are touching

Step-by-step explanation

Which of the following terms correctly describe the object below?
Check all that apply.

Answers

Answer

Just check them all

check them all it’s right is

round 427963 to the nearest thousand

Answers

Answer:

428,000

Step-by-step explanation:

427,963

If the number behind what number you're trying to round is greater than 4 then the number you're rounding goes up once while everything behind it goes to zero. If it's below 5 than the it well stay the same. Ex. Round nearest tenth--> 14--->10 instead of it going up to 20 it stays 10.

427,963

This number is higher than 4 so the number in front or the thousand mark goes up a number.

428,000

Someone else already answered so I figured I'll tell you how to round it, hope this helps.

16. What statement can be made about the distance between the vertices of a triangle and the circumcenter?
O the circumcenter is equidistant to all three vertices
the circumcenter is a different distance from each of the triangle's vertices
the circumcenter is closer to the highest vertex of the triangle
the circumcenter is closer to the vertices that make up the triangle's base

Answers

Answer:

O the circumcenter is equidistant to all three vertices

Step-by-step explanation:

what is another way to write 2.24 x 100

Answers

Answer:

224

Step-by-step explanation:

2.24*100 is 224

You can do it two ways.

First way: use a calculator

second way: multiply it out with normal multiplication

third way: Each zero is one place. There are two zeroes in 100. So in 2.24, you move the point (dot) to the right TWO TIMES. THat makes it 224.0, which is basically 224.

An anchor was dropped into the ocean. It sank 60 feet below sea level in 5 seconds. What integer represents the anchor’s change in elevation per second?

Answers

Answer:

1245.89

Step-by-step explanation:

fthgxdtyujbcxfdrtyuhjnb bcfdtyhjnbcxdftgyhjn cftyghjn vcfghjnbvfghj

if you're riding your bike at 15 miles per hour then how long will it take to travel 15 miles?

Answers

Answer:

1 hour

Step-by-step explanation:

Answer:

An hour

Step-by-step explanation:

Are you really that simple 15 MILES AN HOUR THERES YOUR ANSWER

Can someone please help me with this. I'll give 50 points!

Answers

Answer:

the second one

Step-by-step explanation:

Answer:

2nd answer

Step-by-step explanation:

x less than -3

[tex]Y= x + 15[/tex]

Answers

X=-15,-15+y Y=15

Hope this helps

Have a great day/night

X is a ghost number which means it is considered alone so it’s just 15

convert 5/4 into a decimal

Answers

Answer:

Step-by-step explanation:

The answer is 1.25

Jackson has twice as many cards as his friends Alex and Chase combined. Alex has 55 Cards in his collection. Jackson Has 200 cards in his collection. How many cards does Chase have in his collection?

Answers

Answer:

Step-by-step explanation:

200 divided by 2 = 100-55=45

Answer:

Step-by-step explanation:

200-55=145

Since Jackson has twice as many as them combined, he would have 45.

a rectangle with a length of 3x and a width of x+1 has the same perimeter as a rectangle with a width of x and a length of 2x-2. find the actual dimensions of each figure.

Answers

Answer:

Step-by-step explanation:

value

Please help with this

Answers

Answer: pretty sure its 85

Step-by-step explanation:

Answer:

85°

Step-by-step explanation:

Line segment AB || line m

Therefore, BC is transversal.

[tex] \therefore m\angle ABC + (m\angle ACB +m\angle A D) = 180\degree[/tex]

[tex] \therefore m\angle ABC + (55\degree + 40\degree) = 180\degree[/tex]

[tex] \therefore m\angle ABC + 95\degree = 180\degree[/tex]

[tex] \therefore m\angle ABC = 180\degree -95\degree [/tex]

[tex] \therefore m\angle ABC = 85\degree [/tex]

What is the unit rate of store A?

•$0.75 / notebook

•$0.50 / notebook

•$0.80 / notebook

•None of the above

What is the unit rate of store B ?

•$0.60 / notebook

•$0.30 / notebook

•$0.55 / notebook

•None of the above

Which store has the better deal per notebook? *

•Store A

•Store B

•The unit rate is the same at both stores

Answers

STORE B BECAUSE LOW RATES IS BETTER THAN HIGH

A liquid is being poured at a rate of 15 gallons per minute. How fast is it being poured in liters per hour? Use the fact that one gallon is approximately 3.785 liters, and do not round your answer.(1 point)
liter(s) per hour

Answers

Answer:

Summarize the end of the story and explain the resolution— when the conflict is solved :

At the end of the story...

Step-by-step explanation:

take 15 and multiply it by 60 to get the hourly rate, then, translate it into liters, so the equation would be (15•60=x) then x/3.785, giving you the answer of 237.78071334214

y = 2x + 1
y = -2x + 1
y = -2x - 0.5
y = 2x - 0.5

Answers

have you seen how he answers questions? doesn't deserve to have people answer his

Step-by-step explanation:

Write an equivalent expression 2x + 10

Answers

Answer: 2 (x+5)

Step-by-step explanation:

Answer:

x+5

Step-by-step explanation:

What is the answer to this equation?

Answers

Answer:

m∠A = 78°

Step-by-step explanation:

The question tells us these angles are supplementary meaning they will add up to 180°. We can use the information to make an equation.

m∠A + m∠B = 180

3x + 18 + 5x + 2 = 180

8x + 20 = 180

8x = 160

x = 20

Now we can substitute the solution for x to find the measure of ∠A.

m∠A = 3(20) + 18

m∠A = 60 + 18

m∠A = 78

When is subtraction always the first operation done in an expression?

A Never
B When it follows addition in an expression.
C When it is the first operation in an expression, from left to right.
D When it is in parentheses in an expression.

Answers

Answer:

Step-by-step explanation:

C

The order of operations tells us the correct steps for solving a math problem.
PEMDAS
1. Parentheses
2. Exponents
3. Multiplication
4. Division
5. Addition
6. Subtract
Subtraction is the last step, so if none of the 5 steps before it are in the equation, then that is when you will do subtraction first.

please tell me what a term is

Answers

A term is a single mathematical expression. It can be a number, a variable, several variables that have to be multiplied or sometimes have variables with a number in front (coefficient).

The basketball team went out for pizza after their championship game.
The total bill was $125. The tax rate was 7%. The coach left a 25% tip for the waitress because she worked very hard serving all of the kids.
Determine the total bill.

Answers

Answer:

$165

Step-by-step explanation:

Find what 7% of $125 is. (Multiply 125 times .07)

Find what 25% of 125 is (Multiply 125 times .25)

Add everything together

You get an answer of $165

Hope I helped!! :)

Pls mark brainliest!!!

the length of a living room is 12 fert and its width is 10 1/2 feet. the length of the room is being expanded by x feet. select all the expressions that represent the area of the living room in square feet

Answers

Answer:

vbhjnkmlnkbjvhcgfdxgcvhbjnncnng

Step-by-step explanation:

cxvcxbvcbcvbvcbcvbvcvbb

Answer:

thanks

Step-by-step explanation:

CAN SOMEONE PLEASE HELP ME PLEASE

Answers

Answer:

x = 5

Step-by-step explanation:

I already explained and solved it on the other question. Here is the link to my explanation of how it's 5. https://brainly.com/question/20451937

decide whether each function is linear or nonlinear from its graph

Answers

The one on the left is linear bc it’s a straight line and the one on the right is nonlinear

neeed helppp pleasseeee

Answers

-1/24 is the answer

What fraction is equivalent to -7 over 8
1)8 over -7
2)7 over -8
3)-7 over -8
4)7 over 8

Answers

Answer:

2) 7/-8

Step-by-step explanation:

7/-8 because there is one negative meaning that the whole fraction will be negative. If there were two negatives, or none, it would be positive. The original fraction, -7/8, is a negative. Also, the actual numbers are equivalent as well, 7/8 and 7/8.

2 ( x + 1 )

it's just a simple warm up question, please hurryyy.

Answers

Answer:

2x+2

Step-by-step explanation:

It's multiplicative distribution - when you multiply something in parenthesis by another expression, you distributively multiply the expression to the expression in the parenthesis.

2x+2 (since you do not know the value of the variable you cannot go any further)

sam can make 10 bracelets in 4 hours. how many bracelets can he make in 1 hour. 2 hours. and 3 hours.

Answers

Answer:

1 hour- 2 bracelets ; 2 hours 2 bracelets; 3 hours 4 bracelets

Step-by-step explanation:

i dont know if correct

if 50% is 15 what is 25%

Answers

THE ANSWER TO YOUR QUESTIONS IS 7.5

help meh pls! I will give brainleist if correct omgawd pls!

Answers

Answer:

5= (1/4)c

Step-by-step explanation:

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