5th grade
310
6th grade
305
7th grade
225
This chart shows the number of students going on field trips. For each trip, one adult is needed for every 15 students. How many adults are needed to go on the 7th grade field trip?
solve each system of linear equations by substitution x+y=3 -x+y=5
Answer:
x = -1, y = 4
Step-by-step explanation:
x + y = 3
-x + y = 5
This means that y = 3 - x
We can substitute this value into the equation
-x + y = 5
-x + 3 - x = 5
3 - 2x = 5
Subtract 3 from both sides
-2x = 2
Divide both sides by -2
x = -1
Plugging this number into the equation, we have:
-1 + y = 3
Add 1 to both sides
y = 4
The sum of three times a number and a second number is five. two times the first number added to the second number is 10. find the two numbers.
Answer:
-5 , 20
Step-by-step explanation:
Forming system of linear equations and solving:Let x and y be the first and second number respectively.
3x + y = 5 -------------(i)
y = 5 - 3x
2x + y = 10 -------------(ii)
Method used for solving: substitution method.
Substitute y = 5 - 3x in equation (ii)
2x + 5 - 3x = 10
2x - 3x + 5 = 10
Combine like terms,
-x + 5 = 10
Subtract 5 from both sides,
-x = 10 - 5
-x = 5
Multiply the entire equation by (-1)
[tex]\sf \boxed{\bf x = -5}[/tex]
y = 5 - 3*(-5)
= 5 + 15
[tex]\sf \boxed{\bf y =20}[/tex]
The sum of three consecutive even numbers is 582. What is the 1st number?
Answer:
d
Step-by-step explanation:
y
The weight y of a object on Jupiter is proportional to the weight x of the object on earth. An object that weighs 150 ponds on earth would weigh 378.2 ponds on Jupiter. Write a equation the situation then determine how Much a rock that weigh 12.64 on Jupiter would weigh on earth.
Answer:
5.02 pounds
Step-by-step explanation:
y = k*x
Where,
y = weight of a object on Jupiter
x = weight of the object on earth
k = constant of proportionality
An object that weighs 150 ponds on earth would weigh 378.2 ponds on Jupiter.
y = k*x
378.2 = k*150
378.2 = 150k
k = 378.2/150
= 2.5213
Approximately k = 2.52
determine how Much a rock that weigh 12.64 on Jupiter would weigh on earth
y = k*x
12.64 = 2.52*x
12.64 = 2.52x
x = 12.64 / 2.52
= 5.0159
Approximately x = 5.02 pounds
A poll was taken to total the candy collected by a few students who went trick or treating on Halloween. Determine the ratio that compares the number of
candy bars to the total pieces of candy.
Halloween Number of
Candy Pieces
Lollipops 10
Gumballs 15
Candy Bars 5
Chocolate 10
1:6
O 1:5
O 14
O 1:8
Answer:
1:8
Step-by-step explanation:
there are 5 candy bars
10+15+5+10=40
5:40 simplified is 1:8
Big Bob is currently 18 years old and weighs 205lbs. Every year he plans on gaining 8lbs. Using the expression from the previous problem (250+ 8y) how much will he weigh when he is 24 years old?
Answer:he will weigh 298lbs when he is 24 years old
Step-by-step explanation:
24-18=6 so y =6 plug this into problem (250 +(8x6))
8x6=48 (250=48)=298
John is selling sets of Legos and makes a 10% commission on all sales. what would his
commission be on the sale of a $3750 set of Legos?
Commission would be $
Answer: The commision would be $ 375
Step-by-step explanation:
Are these Triangle congruent? How do you know?
a. No
b. Yes, SSS
c. Yes, SAS
d. Yes, ASA
e. Yes, AAS
Answer:
Yes sas
Step-by-step explanation:
A company charger shipping fee that is 4.5% of the purchase price for all items it ships. What is the fe to ship an item that costs $56
Answer:
This is an percentage change question, by any chance you have a maths textbook, look for units that contains the topic: Percentage Change. Now, let's get solving! :)
Step-by-step explanation:
Firstly, you must multiply 4.5% with 56. That is: shipping fees x purchase price
That gives ($) 2.52 (this is your answer)
No addition/totaling needed as the question asked ONLY for the shipping fees.
Stay safe and Merry Christmas! :)
anyone know how to do tables?
Answer the question in photo [ Brainliest + easy points ]
Answer:
24 units
Step-by-step explanation:
BC + DC = BC
12 + 12 = 24 units
According to the behavior of integer division, when an integer is divided by an integer, the result will be a float. True or false?.
Question:
According to the behavior of integer division, when an integer is divided by an integer, the result will be a float. True or false?
Answer: False
A spinner is labeled 1 to 10. What is the probability of the spinner landing on a prime number after one spin?
yall know how to do this?
Is the sequence below increasing or decreasing?
1/7, 2/7, 3/7, 4/7, 5/7.
Answer:
it is increasing because you have more pieces
Step-by-step explanation:
think of it as a pizza
Answer:
Increasing
Step-by-step explanation:
The bottom number, or the denominator, indicates that the object you have has been slit into seven pieces. As the top number, or the nominator, increases it indicates that you are gaining more pieces of the object in question.
Hope this helps. Have a great day. May it be filled with joy and happiness.
Do,K=(9,6)—>(3,2)
The Scale Factor is
Answer:
1/3
Step-by-step explanation:
yes
Suppose that three out of five voters support a candidate. If 1,240 voters support the candidate, how many voters participated in the election in all? Round your answer to the nearest whole number.
Answer:
2067 voters
Step-by-step explanation:
Suppose that three out of five voters support a candidate.
This means 3/5 votes support a candidate
Let the total number rod candidates be represented as x
If 1,240 voters support the candidate,
how many voters participated in the election in all?
Hence,
3/5 of x = 1240 voters.
3/5 × x = 1240
3x /5 = 1240
Cross Multiply
3x = 1240 × 5
x = 1240 × 5/3
x = 2066.6666667 voters
Approximately to the nearest whole number:
2067 voters
25 POINTS !!!!!!!! PLEASE HELP FAST find the value of x in each case
Greetings from Brasil...
According to the theory, we have
→ opposite angles by the vertex
→ corresponding angles
(see second attachment)
Then
2X + m = 4X
m = 2X
and
6X + 2X = 180
8X = 180
X = 22.5Look at the expression below.
( -3 + 5) + 2
Which of the following has the same value as the expression?
A. -3 + (5 + 2)
B. (-5 + 3) + 2
C. 3 + (-5 - 2)
D. (-3 + 5) - 2
Answer:
A.
Step-by-step explanation:
(-3+5)+3=4
A. -4+(5+2)=4
Answer:
Its A
Step-by-step explanation:
For verification:
(-3 + 5) + 2 = -3+5+2 = 4-3 + (5 + 2) = -3+5+2 = 4Do, its A
How am I suppose to do this?
You should know dummy
Compare the two linear functions.Select which has the greater rate of change and which has the greater initial value.
Answer:
Function 1 is Greater Rate of change and Function 2 is Greater inital value
Step-by-step explanation:
I know I have that question
Answer:
Function 1 = Greater Rate of change
Function 2 = is Greater initial value
Step-by-step explanation:
Raphael is ordering food. He purchases two pizzas
for $7.55 each. How much did Raphael spend on
pizza, in dollars and cents?
Answer:
$15.10
Step-by-step explanation:
Three sticks of butter are needed for every 24 cookies.
How many cookies can be made with 5 sticks of butter?
Sticks of butter
Cookies
3
24
1
5
How many cookies can be made with 5 sticks of butter?
Answer:
40 cookies
Step-by-step explanation:
24÷3=8
8×5=40
What is the main purpose of the dual accounting method? A. To help you think twice about purchases B. To help you double check what you are spending your money on by confirming all receipts C. To record every transaction twice, reflecting them in accounts and in your budget D. To help detect errors in your budget
Answer: D. To help detect errors in your budget
Step-by-step explanation:
The main purpose of the double entry system is to ensure that errors are detected. If we used only single entry, once a mistake was made, tracing it would be difficult. Using double entry however, we would be able to look for the corresponding entry to see what the error was.
For instance, say a company sells a computer for $440 cash. The bookkeeper however recorded this as $404 in the Cash receipts journal and $440 in the Sales journal. Because it was recorded correctly in the Sales journal, the mistake in the Cash receipts journal can be found and corrected.
Leslie has $30 to spend at an amusement park. She spent $9 on snacks. She wants to ride a roller coaster that costs $1.25 per ride. The inequality 9 1.2530rcan be used to determine r, the number of rides she can take. Which statements about the number of rides Leslie can take are true?
Select all that apply.
A.Leslie can take 16 rides on the roller coaster.
B.Leslie can take 17 rides on the roller coaster.
C.The minimum number of rides Leslie can take on the roller coaster is 9.
D.Leslie can take 9 rides on the roller coaster, but this number is neither the minimum nor the maximum.
Answer:
d is a answer there arer no more
Step-by-step explanation:
she can ride 14 rides
Please help its due today
Answer:
A. Common factor is 6[tex]x^{3}[/tex]y
B.) A common factor is a term by which a set of two or more terms can be divided by exactly. We look at each term in the original problem and try to find the greatest term that each has in common.
C. 6[tex]x^{3}[/tex]y(5x[tex]y^{2}[/tex]-2). If we multiply each term inside the parentheses by the terms outside, we get the original polynomial.
Step-by-step explanation:
everything you need is in the image
pls help TT
Answer:
6 x 7 is 42, so A m a y b e?
Step-by-step explanation:
f/5 = -8
What is f ?
Answer:
The answer would be -40.
Step-by-step explanation:
We have to solve for f.
Are equation given to us is:
[tex]\frac{f}{5} =-8[/tex]
What we do first is multiply both sides by 5.
f = -40
We see that -40 is the answer.
To make sure this is correct, we can plug it in for f and solve.
[tex]\frac{-40}{5}[/tex] = -8
It is correct, so f is equal to -40.
#teamtrees #WAP (Water And Plant)
Answer:
F= -40
Step-by-step explanation:
F/5 = -8
F = -8×5
F= -40
How many of the 56 gold coins can we give
each pirate?