Answer:12.5
Step-by-step explanation:
25 is 12.5 percent of 225 225 minus 200 is 25
A smartphone originally worth $790 loses value at a rate of $175 each year. Write an equation to represent the value of the phone, then find the value of the phone after 4 years. Identify your variables.
Equation:
Solution:
The weight of a bag of peaches is estimated to be 5 lbs. The actual weight is 5.3 lbs.
What is the percent error in the estimate?
Enter your answer, rounded to the nearest tenth, in the box.
%
Answer:
0.3% sorry it says estimate but i think this is the right answer if it is could u please mark brainliest
Step-by-step explanation:
Edith bought a science book and a math book for her college classes. The cost s, in dollars, of the science book is $28.75 more than the cost m, in dollars, of the math book. Write an equation that relates the prices of the two books.
Answer:
do m= 28.75 minus S
or do s= 28.75 minus m
Step-by-step explanation:
do m= 28.75 minus S
or do s= 28.75 minus mdo m= 28.75 minus S
or do s= 28.75 minus mdo m= 28.75 minus S
or do s= 28.75 minus mdo m= 28.75 minus S
or do s= 28.75 minus mdo m= 28.75 minus S
or do s= 28.75 minus mdo m= 28.75 minus S
or do s= 28.75 minus mdo m= 28.75 minus S
or do s= 28.75 minus mdo m= 28.75 minus S
or do s= 28.75 minus mdo m= 28.75 minus S
or do s= 28.75 minus m
Factor each trinomial completely 21x^2-35x-14
Answer:
7 (3x+1) (x-2)
Step-by-step explanation:
HELP!!!! GEOMETRY! I AM CONFUSED WILL GIVE BRAINLIEST IF YOU HAVE EXPLANATION!!!!!!!!!!!!!!!!!!! PLEASE THANKS IN ADVANCEE!!!! IF YOU HELP YOU"RE THE BESTTT
is this statement valid or invalid "if an animal has feathers, than it is a bird. a crow has feathers, so it is a bird"
Answer:
the statement is valid!
Step-by-step explanation:
first, let's consider the first statement "if an animal has feathers, then it is a bird"
well, let's think about this: are there any animals that have feathers that AREN'T birds? No!
so we know the first statement is true so it is valid
now, let's consider the second statement "a crow has feathers, so it is a bird"
is that true? well based on the first statement, if an animal has feathers it's a bird. so yes! the statement is valid
Answer: The statement is valid.
======================================================
Explanation:
This is valid by the law of detachment. This is also known as "modus ponens".
The basic format is that we have these two premises
If P is true, then Q is trueP is trueThose two premises work together to conclude that Q must be true. Think of it like a set of dominoes. The first domino that you knock over is statement P, which then leads to domino Q being knocked over afterward (ie statement Q must be true because P is true).
Jenny is using a map to plan a walk.
The scale of the map is 1 : 20 000
She measures the route as 23.5 cm.
How long is the walk in km?
Answer:
470,000
Step-by-step explanation:
Hope this helps
Justify each step used to simplify the expression. 1. 3x+ 2y− 2x+ 2 = 3x− 2x+ 2y+ 2
Step-by-step explanation:
We have to simplify the given expression:
1. 3x+2y-2x+23x+2y−2x+2
Combining the like terms,we get the second step as
2. (3x-2x)+(2y)+(2)(3x−2x)+(2y)+(2)
Now, taking 'x' common from the first two terms, we get third step as:
3. (3-2)x+2y+2(3−2)x+2y+2
Now, simplifying the expressions among the like terms, we get fourth step as:
4. x+2y+2x+2y+2
I REALLY NEED HELP ASAP!!!!!!!!!!!!!!
Answer:
cone V≈157.08
cylinder V≈502.65
sphere V≈113.1
the cubic units/ volume of each 3D shapes are:
cone .1 =157.08
cilindar .2 =502.65
sphere .3 =113.1
Let's see about this one!
Answer:
6
Step-by-step explanation: 3*2=6
alice average mark for 4 science exams is 68%. Can alice score enough marks In a fifth exam so that her average Mark increases to 75% give reasons
Answer:
it is impossible she gets a 75% because as far as we know she can only score a maximum of 100 and she needs a 103
Step-by-step explanation:
We're going to assume that alice got a 68 on all 4 of her science exams
which means that so far we have[tex]\frac{68+68+68+68}{4}=68[/tex]
And we need to find out if she can get a 75 which means that we have the following
[tex]\frac{68+68+68+68+x}{5}=75[/tex]
Solve for x
272+x=375
x= 103
Therefore (unless there is extra credit available in the exam) it is impossible she gets a 75% because as far as we know she can only score a maximum of 100
What is 3/7 x 0.1 Divided by 5/21
Answer:
0.000408163265
Step-by-step explanation:
Answer:
9/50 or 0.18
Step-by-step explanation:
3/7 x 0.1 = 3/70
3/70 divided by 5/21 is 9/50
6th grade math help im an idiot!
Grace made a dot plot showing the distances she ran each day for two weeks.
She says that she usually runs 7 miles each day because that is the distance that occurs most often.
Do you agree with Grace’s reasoning?
Use the drop-down menus to explain and show your answer.
Dot plot named as ALTDCDistances RunALTDC has number line from 1 to 7. 1 dot on 1, 3 dots on 2, 3 dots on 3, 3 dots on 4 and 4 dots on 7 are given.
The mode, which is (3,4, or 7) ,(is or is not) a typical distance for the data. The median, which is (3.5,4, or 7),(is or is not) a typical distance for the data. The mean, which is (3,4, or 7) ,(is or is not) a typical distance for the data. So, Grace’s reasoning(is or is not ) correct.
PLEASE PLEASE PLEASE HELP I WILL MARK BRAINLIESTTT
How were the first factories powered in the U.S.?
Group of answer choices
A.) boiling water making bubbles
B.) burning oil in a piston engine
C.) fast moving water turning mill wheel
D.) animals like oxen using pulleys
Answer:
C
Step-by-step explanation:
In 1790, Samuel Slater built the first factory in America, based on the secrets of textile manufacturing he brought from England. He built a cotton-spinning mill in Pawtucket, Rhode Island, soon run by water-power. ... In the iron industry, Pennsylvania's furnaces and rolling mills were fast supplanting small local forges.
Answer:
Fast-moving water (turning mill-wheel)
Step-by-step explanation:
The system of equations relates the distance, y,
from a station of two trains and the speed, x, at which they are moving.
y + 10x = 250
2.5y = -25x + 625
a. What does the system of equations tell you about the speed
of the trains?
b. What does the solution tell about the locations of the trains if they
left the station at the same time? If they left at different times?
Pls help me PLSSSSSSSSSSssss
Answer:
Step-by-step explanation:
Yes, No, No, Yes.
What is the GCF of -16y^4+12y^2-4y and why is that the GCF ?
Answer:
24
Step-by-step explanation:
Write an equation to represent the amount of water in the bucket, y, in terms of the number of minutes, x, since the faucet was turned on
Answer:
y= 3x+125
Step-by-step explanation:
y intercept is 125
gradient is 3
y=Mx+c
y=3x+125
Answer:
y = 75x + 125
Step-by-step explanation:
Write in form y = mx + b
75 is the slope (m)
125 is the y-intercept (b)
So the equation would be y = 75x + 125.
BTW, the slope is written in rise/run form. For this graph, it is 75/1.
Hope this helps!
Maybe Brainliest?
What are the 4 letters
Answer:
BGHA
Step-by-step explanation:
You have to find all of the coordinates first in the order they are written:
(0,4)
(-4,3)
(2,0)
(0,-1)
Now use the code at the right to find the letters for each coordinate:
(0,4) B
(-4,3) G
(2,0) H
(0,-1) A
Now write it in this order (all caps): BGHA.
Hope it helps and is correct!
Answer:
1, 2, 3, 4
Step-by-step explanation:
Which is a good comparison of the estimated sum and the actual sum of 7 7/8 + 2 11/12?
Answer:
D
*thinking*
you would assume that it is 11 the actual is 10 19/24
Wich is not quite 11
Answer:27.20833333
Step-by-step explanation: all you do is add them up and pick b or a for the answers
Three times a number minus five equals two times the number.
Answer:50
If the number is 5
Step-by-step explanation:
Answer:
20
Step-by-step explanation:
3x5-5=10x2=20
Your first bungee jump is 50 1/6 feet higher than your second jump. Your first jump reaches −200 2/5 feet. Select the equation you can use to find the height h (in feet) of your second jump. Then find the height of your second jump.
Answer:
h= −250 17/30
Step-by-step explanation:
Let's solve your equation step-by-step.
−200 2/5 −50 1/6 = h
Step 1: Simplify both sides of the equation.
−7517/30 = h
Step 2: Flip the equation.
h = −7517/30
Sidenote: Hope this helps! :D
The expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. If the length is Fraction 2 over 5 unit and the width is Fraction 1 over 5 unit, what is the perimeter of the rectangle in units?
Answer:
3/5
Step-by-step explanation:
All you gotta do is add both units and you have your answer
Answer:
c
Step-by-step explanation:
Use line Segment AB.
If line segment AB represents 25%, what is the length of a line segment that is 100%?
____ inch(es)
(Type a whole number or a decimal)
Answer:
I think its 24 in.
Step-by-step explanation:
Tell me if I'm wrong
PLS PLS ANSWER 8,9 I WILL GIVE BRAINLIEST
Answer:
I gotchu!!
Step-by-step explanation:
-4.5<-1.5 (-1.5 is closer to 0 on a line.)
the opposite of 7 >-9 is -9>7
Plz help i need answer fast i will mark brainliest and follow you
Answer:
i don't know if i am right but the rectangle should be -4 and i don't know for triangle
Step-by-step explanation:
Multiply and Diving Decimals.
Ingrid pays $6.72 for 4 pounds of apples. What's the cost of 1 pound of apples?
Answer the Problem.
State your answer.
Do all this. You'll Get brain take this wisely!!!! <333
Answer:
Step-by-step explanation:
6.72/4= 1.68 a pound
Hope Middle School hosts a pizza party for the end of the first marking period. There are 588 students in the school. Mario's Pizza sells extra-large pizzas that are cut into 12 slices each. How many pizzas does the school need to order so that each student receives 2 slices
Answer:
24.5 pizzas
Step-by-step explanation:
588/12
and then 49/2
Pls answer all 5! Will mark brainliest!!
Answer:
1)A
2)B
3)A
4)C
5)D
Step-by-step explanation:
Write a phrase for each expression:
10y
x - 3
12n
Write the equation for the model below. Then solve for x.
help asap ASAP asap ASAP HELP HELP ME PLZ PLZ HELP ME