Answer:
The number of dimes is represented by x = 90
Step-by-step explanation:
Given that:
The number of dimes is represented by x
Number of quarters = 6 + 2x
Total number of coins in the bag = 276
To find x, we have:
x + 6 + 2x = 276
3x + 6 = 276
3x = 276 - 6
3x = 270
x = 270/3
x = 90
Question 3
On problem #10, which variable will be the easiest to isolate in order to solve the system using
substitution?
A: x, in the top equation
B: y. in the top equation
C: x, in the bottom equation
D: y, in the bottom equation
Answer:
A = Hard to do, B = Easiest, C = Pretty Easy, D = Hard
Step-by-step explanation:
Step 1:
5x - 2y = -18
x - 8y = 80
__________
Step 2:
4(5x - 2y) = (-18)4
20x - 8y = -72
__________
Step 3:
20x - 8y = -72
x - 8y = 80
__________
Step 4:
21x = ?
Also, this equation isnt a substitution question, the way to solve this is by using elimination, you can tell because the values are lined up perfectly, sub. is used when y/x, is on the bottom left or right, and the other is on the opposite.
(if this makes any sense)
If this is accurate please mark it with a brainliest :)
.Write the value of the number in parenthesis (6) 78.006
Answer:
Thousandths
Step-by-step explanation:
7: tens
8: ones
0: tenths
0: hundredths
6: thousandths
please please help i’ll give brainliest please tysm :))
Answer:
36 is the answer for this problem
Answer:
36
Step-by-step explanation:
it is multiplying by 6
1*6=6
6*6=36
30*6=160
PLEASE HELP ME WITH THIS ASAP
9514 1404 393
Explanation:
1. ΔABC ≅ ΔDEF . . . . . 1. SAS postulate*
_____
The two given congruent sides are either side of the given congruent angle, so the SAS postulate applies. The objective appears to be irrelevant.
Please help ASAP!
I’ll mark brainliest:)
The question of the pic was cut off at the top and it says -
Line W is graphed on the coordinates plane below.
Answer: A
Explanation:
Step 1: Use the linear graph to create an equation using slope-intercept form. The y-intercept is (0,-6) because that's where the line passes the y-axis. The slope is 1/2 and that's pretty self-explanatory if you know how to find slope. The equation would be y=1/2x-6.
Step 2: Because we are looking for a line perpendicular to the linear graph, the y-intercept and slope needs to be different. If they're perpendicular, they need to intersect, so the slope needs to be the reciprocal of the original slope, 1/2. The reciprocal is -2. Your equation would be y=-2x+b, and since we don't know the y-intercept, we would leave it as b.
Step 3: Plug in the given ordered pair, (-3,-2), to get -2=-2(-3)+b. You would result with -2=6+b. Subtract 6 to both sides and you would get b=-8.
Tyler’s height is 53 inches. What could be his height in centimeters? (1 inch = 2.54 cm)
Answer:
134.62
Step-by-step explanation:
What number would you multiply the 2nd equation by in order to eliminate the y terms?
4x - 4y = 16
2x + y = 5
Answer:
x=3
y=-1
Step-by-step explanation:
first multiply the 2nd row by 2 so you will get
4x-4y=16
4x+2y=10
then subtract the 2nd row from the first row and so you will get
-6y=6
then solve for y in the above equation
y=-1
then substitute y=-1 into any 2 equations .
i picked the first 1
4x-4 × -1=16
then solve for x .
you will get
x=3
what is π + e its easy
Answer:
5.85987448205
Step-by-step explanation:
Answer:
The answer is e+pi
Step-by-step explanation:
PLEASE ANSWER ASAP!!!!!!!!!
A ball is dropped from a certain height. The function below represents the height f(n), in feet, to which the ball bounces at the nth bounce.
f(n) = 9(0.7)n
What does the number 9 in the function represent?
A) Number of times the ball was dropped.
B) Height from which the ball was dropped.
C) Height to which the ball will bounce at the nth bounce.
D) Number of times the ball bounces at the nth bounce.
Answer:
c
Step-by-step explanation:
simplify This expression
Answer:
9
Step-by-step explanation:
10-2×3+5
10-6+5
4+5
9
Answer:
9Step-by-step explanation:
[tex]10-2\times 3+5 \\\\Follow\:the\:PEMDAS\:order\:of\:operations\\\\Multiply\:2\times 3\:=6\\\\=10-6+5\\\\Add \:and \:subtract \: :10-6+5\\\\=4+5\\\\=9[/tex]
Evaluate 3x – 4 when x=7. The value of the expression is
Answer:
3(7) - 4 = 17
Step-by-step explanation:
Substitute 7 for x and solve.
What I have learned
Help me
PLS HELP ASAP PLSSS IT DETECTS IF ITS RIGHT OR WRONG HELPPP
Answer:
500
Step-by-step explanation:
each computer is 500 dollars
Answer:
500
Step-by-step explanation:
Divide each cost by the number of computers
500 ÷ 1 = 500
1,000 ÷ 2 = 500
1,500 ÷ 3 = 500
2,000 ÷ 4 = 500
mark brainliest if helped
Subtract -7x^2+4x+2 from x^2-3x
Answer:
-8x^2+x+2
Step-by-step explanation:
pls help asap thx :)
Answer: a
Step-by-step explanation:
It can show she earn how much each week and how much she earn at the end of the week.
easy math please help
Answer:a and d
Step-by-step explanation:
y=12x=25 help please
Answer:
Simplifying
y = 12x + 25
Reorder the terms:
y = 25 + 12x
Solving
y = 25 + 12x
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Simplifying
y = 25 + 12x
Step-by-step explanation:
I tried
convert
27/8
41/18
41/15
and 29/12
into Mixed numbers show steps please
Answer:
Ok
Step-by-step explanation:
27/8 = 3 3/8
41/18 = 2 5/18
41/15 = 2 11/15
29/12 = 2 1/3
Solve the right angle trig problem.
Answer:
x = 53.6588°
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Trigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] cos∅ = adjacent over hypotenuseStep-by-step explanation:
Step 1: Define
We are given a right triangle. We can use trig to find the missing angle.
Step 2: Identify Variables
POV from angle x
Angle = x
Adjacent = 16
Hypotenuse = 27
Step 3: Solve for x
Substitute: cosx° = 16/27Inverse: x° = cos⁻¹(16/27)Evaluate: x = 53.6588°Find the value of n that makes DEF-XYZ when
DE = 4, EF = 5, XY = 4(n + 1). YZ = 7n - 1, and
Answer: n=3
Step-by-step explanation:
Understand that you need to set up a proportion before you can try to solve the question through guessing. In this case, YZ would be proportional to XY as EF is proportional to DE. You would write this as: EF/DE=YZ/XY.
Now you want to write an equation. In order to do this remember to multiply by your proportion. Here’s my equation:
5/4(4n+4)=7n-1. Now distribute:
5n+5=7n-1. Now simplify:
6=2n. Now simplify again:
n=3
Hope this helps you with your big ideas math hw!
The value of is n=3
Important information:DEF-XYZ whenDE = 4, EF = 5, XY = 4(n + 1). YZ = 7n - 1.The calculation is as follows:5/4(4n+4)=7n-1.
Now distribute:
5n+5=7n-1.
Now simplify:
6=2n.
n=3
Find out more information about the Number here : https://brainly.com/question/17429689?referrer=searchResults
Danny is opening a saving account. His initial deposit was $100. He makes $25 a week mowing his neighbors lawns, and he plans to put his earnings into the savings account each week. Write an equation in slope intercept form to model the amount of money in the bank account, y, after x weeks.
Answer:
y=100x+25
Step-by-step explanation:
I'm assuming you need an equation for this.
the answer is y = 100x + 25 or 25(4x+1)
Is the following a function ?
Answer:
yes
Step-by-step explanation:
A football team has $3,744 to spend on hats for their fans. Each hat costs $8. How many hats can the team buy?
Answer:
468
Step-by-step explanation:
3,744/8=468
At what value of x does the line you graphed intersect the line
y=5? Show how you determined your answer.
please tell me if my answers are right
pls help! will give brainlist!
write a story that can describe the expression:
75x - 20
Help me !! Which one is it ?
Answer:
c
Step-by-step explanation:
Dans chaque cas suivant, écris le symbole approprié ∈ ou ∉.
Answer:
Anglais s'il vous plait, je ne vous comprends pas
Step-by-step explanation:
help me please if you can tell me the answer
Answer:
a
Step-by-step explanation:
Answer: Im pretty sure that its D
Step-by-step explanation:
pls dont be mad if its wrong
PLS HELP ASAPPPp!!! I DONT HAVE TIME I ONLY GOT 5 MINUTES PLS HELP THERES TWO QUESTIONS AHHH IM FREAKING OUT!
Answer:
1) $500
Step-by-step explanation:
It literally says $500 on the table hope this helps :D
For #2, i cant see the full question.
Hope this helps :D Please hit the crown if you want me to help you on the last one then tell me and make a new question !!!!!!!!!!!!
Answer:
500, x times 500 = y
Step-by-step explanation:
Question 1: $500, if you look at the table underneath the section for "one" compute it says 500 in the cost section.
Question 2: X times 500 = Y (since for every "x" (computer) there is $500 "y" (cost))