this is 6th grade work there will be more questions on this but i needed help on this
Answers
Answer:
Step-by-step explanation:
X + (X + 4) + (X - 7) = 54
3X - 3 = 54
3X - 3 + 3 = 54 + 3
3X = 57
3X / 3 = 57 / 3
X = 19
Y = (19 + 4) = 23
Z = (19 - 7) = 12
Sam's age = 19
Dana's age = 23
Alex's age = 12
Related Questions
Mr. Aba builds a circular patio with a diameter of 12 feet. He covers the patio with paving stones. The cost of the paving stones is $10.50 per square foot. To the nearest dollar, how much do the paving stones cost.
Answers
Answer:
395.85
Step-by-step explanation:
If the diameter is 12, then the radius must be 6. Following the formula of pi: 2 * pi * radius, our result is 37.7. 37.7 * 10.50 is 395.85
I really hope this helps. My memory of circles and pi isn't the best.
I’m 1000% sure that this correct
I have done this question with other people! Hope this helped
11.50 + 1.15x = 12.65
11.50 - 11.50 + 1.15x = 12.65 - 11.50
➗ 1.15x = 1.15 ➗ what does x equal? Please explain in great detail how you figured this out also replace the = with the proper inequality sign and explain how you did that as well.
Answers
Answer: the answer is x= 1
Step-by-step explanation:
So we are dealing with 11.50 - 11.50 + 1.15x = 12.65 - 11.50
our first step is Simplify both sides of the equation so:
11.5 + -11.50 + 1.15x = 12.65 + -11.50 turns into:
(1.15x) + (11.5+ -11.5)= (12.65 + -11.5)
**we know 11.5 + -11.5 will cancel each other since they are opposite**
so it will be 1.15x= 1.15
now the very last step is to divide 1.15x on both sides which gives us 1
What is the y-intercept of the line shown? (4 points)
A. 0
B. 1
C. 3
D. 3.5
Answers
Answer:
The answer is where on the y-axis (vertical probably bold axis) the line passes through. If it goes through the center of the graph the answer is 0.
Can't really help more than that with the given information.
- 1/9x+2.4=6 what is x
Answers
-1/9x+2.4-2.4=6-2.4
Then we’re going to simplify
-1/9x=3.6
Then multiply both sides by -9
(-1/9x) (-9) =3.6 (-9)
Then you just Gotta simplify
U get
X=-32.4
Bots have answered this for the past two times but I still need help. The question is below.
Answers
Answer:
a. False
b. True
c. True
d. I think it's true
e. False
Step-by-step explanation:
a. The unit rate is 19.75 gallons per minute
b. It is true because when x=0 y is also equal to 0, therefore it passes through the origin
c. 19.75 is about 20, and 20 multiplied by 5 is 100
d. Like I said before I don't know but I hope you get it correct ._.
e. When x=8 the equation would be 19.75*8 which is equal to 158 not 150
True
true
true
False
3/4c-7/12+7/24c+2/3-1/6c
simplify the expression
Answers
Explanation: separate the c terms and the non-c terms. 3/4c + 7/24c - 1/6c = 7/8c
-7/12 + 2/3= 1/12
therefore, it’s 7/8c + 1/12
The simplification of the given expression (3/4)c - 7/12 + (7/24)c + 2/3 - (1/6)c is (21/12)c + 1/12.
What is an expression?A mixture of variables, numbers, addition, subtraction, multiplication, and division are called expressions.
A statement expressing the equality of two mathematical expressions is known as an equation.
As per the given expression,
(3/4)c - 7/12 + (7/24)c + 2/3 - (1/6)c
Combined likely terms,
⇒ (3/4)c + (7/24)c - (1/6)c - 7/12 + 2/3
⇒ (3/4 + 7/24 - 1/6)c + 2/3 - 7/12
⇒ [(18 + 28 - 4)/24]c+ (8 - 7)/12
⇒ (42/24)c + 1/12
⇒ (21/12)c + 1/12
Hence "The simplification of the given is (21/12)c + 1/12".
To learn more about expression,
https://brainly.com/question/14083225
#SPJ2
when keisha installed a fence along the 200 feet perimeter of her rectangular back yard she left and opening for GATE in diagram below she used X to represent the length of the gate (I give brainliest)
Answers
Answer:
(x + 60 + 30) * 2 = 200
(x + 90) * 2 = 200 multiply 2 inside parentheses
2x + 180 = 200 move 180 to the other side with changing it's sign
2x = 20 multiply by 2
x = 10 here is the answer
Step-by-step explanation:
Perimeter = (length + width) * 2
Hope this helps.
Rewrite each of the following expressions without using absolute value bars.
a
|x−4| if x>4
b
|x−y| if x
c
|3r−15| if r<5
Answers
a y=x-4 if x>4
b INCOMPLETE
c 3r-15 is r<5
Question about finding intercepts from a table. Hope someone can answer!
Answers
Now if you are familiar with the equation of a line in slope intercept form, it will look like this: y=mx+b. Here the ‘m’ is the slope and the ‘b’ is your y-intercept. What you need to do is use any two points given from the table and find the slope. To do that follow the steps below:
1. Pick two points. Let’s take the first two.
(-28, -54) And (-21, -40)
2. Subtract the two y values, -40 - (-54) = 14
3. Subtract the two x values, -21 - (-28) = 7
4. Now take your answer from step 2 and divide it by your answer in step 3. This will be 14/7, which will be 2.
Your answer from step 4 is your slope, or ‘m’.
(That series of steps was basically change in y over change in x, you can look that up if you are still confused)
Now that you know m, your incomplete equation will be this:
y=2x+b.
Next you will pick any point from the table again, and replace it with x and y in the equation. Let’s pick the second point, (-21,-40)
Plug this in: -40 = 2(-21) + b
Solve for b and you will get your answer.
-40 = -42 + b
b=2
Your answer is 2, that is the y intercept.
(The full equation of the line from that table would be y=2x+2)
Hope this helps!
point into x and y and the b you will get is
your y-intercept.
Now if you are familiar with the equation of
a line in slope intercept form, it will look
like this: y=mx+b. Here the 'm' is the slope
and the 'b' is your y-intercept. What you
need to do is use any two points given
from the table and find the slope. To do
that follow the steps below:
1. Pick two points. Let's take the first two.
(-28, -54) And (-21, -40)
2. Subtract the two y values, -40 - (-54)
14
3. Subtract the two x values, -21 - (-28) :
7
4. Now take your answer from step 2 and
divide it by your answer in step 3. This will
be 14/7. which will be 2.
Your answer from step 4 is your slope, or
PLS HELP ME!! THIS IS URGENT!!!
Answers
Answer:
no b is the correct answer
Answer:
Step-by-step explanation:
im pretty sure its b
Mr. Quick bought a new computer system. The regular price was $1,580, but he got a 15% discount. How much did he actually pay?
Answers
Answer:
$1343
Step-by-step explanation:
Mr. Quick bought a new computer system. The regular price was $1,580, but he got a 15% discount. How much did he actually pay?
You need to turn 15% into a decimal.
Move the decimal point to the left 2 spaces.
15 ---> 1.5 ---> 0.15
Now multiply 0.15 by $1,580.
0.15 × $1,580
Which is $237.
Now subtract $1580 - $237.
Which is $1343.
Answer:
$1580*15/100=$237that is discount rate.
$1580-237=$1343 actually pay
Point U on a graph is located at (4,8), Point V on the same graph is located at (12, 14).
Which point lies on Line UV?
A. ( 7 , 12 )
B. ( 10 , 14 )
C. ( 16 , 22 )
D. ( 20 , 20 )
Answers
Answer:
D
Step-by-step explanation:
gradient is change in y/change in x
gradient of UV = 14-8/12+4=3/4
use equation y=mx+c where y is the y coordinate, m is the gradient, x is the x coordinate and c is the y intercept
use one of the coordinates of U or V, I'll use (4,8)
[tex]y = mx + c[/tex]
[tex]8 = \frac{3}{4} (4) + c[/tex]
[tex] 8 = 3 + c[/tex]
c is 5
the equation for UV is
[tex]y = \frac{3}{4} x + 5[/tex]
insert each X coordinate given in the question to see if it gives the same y coordinate
when x is 20, y is also 20 so the answer is D
I need help due today
Answers
Answer:
Step-by-step explanation:
y=mx+b b= y-intercept y-intercept=where the line crosses the y-axis m=slope slope== rise/run or slope formula, m=y2-y1/x2-x1
For example, number 1's slope is 5/3. On a graph, you would go up 5 (not in block, but in numerical value) and right 3. The y-intercept is -2. This is where your line starts on the graph.
sorry, cant help ya there buddy
I dont get this can someone please help me.
Answers
Answer:
x[tex]\geq 10[/tex]
Step-by-step explanation:
[tex]5+ \frac{x}{2} = 10\\10+x=20\\x=20-10\\x=10[/tex]
Describe how to determine if a number is a solution to an equation.
Answers
Step-by-step explanation:
Determine whether a number is a solution to an equation.
Substitute the number for the variable in the equation.
Simplify the expressions on both sides of the equation.
Determine whether the resulting equation is true. If it is true, the number is a solution. If it is not true, the number is not a solution.
Hoped that helped:P
Simplify the expressions on both sides of the equation.
Determine whether the resulting equation is true. If it is true, the number is a solution. If it is not true, the number is not a solution.
Here u go happy holidays
Please help asap! I'll give brainly!
Answers
Answer:
for the first one the answer is 75, for the second one its they are not proportional,
Step-by-step explanation:
IM not sure if its correct sorry:)
(TWO PART QUESTION - please answer both)
!! WORTH 60 POINTS !!
A recipe for cake calls for 3/4 cup of sugar and 2 cups of flour.
a. How much sugar would be needed for 1 cup of flour?
b. Write an equation to represent the relationship between s ; sugar, and f ; flour.
Answers
B: flower(f) sugar(s)
S=3/8F
What is the correct order of statements and reasons to complete the proof? help please
Answers
PLEAS HELP
Item 5
A scuba diver descends in the water at a rate of 2312 feet per minute for 2.6 minutes. He immediately changes course when he sees a large fish and ascends at a rate of 28 feet per minute for 2 minutes.
What is the scuba diver's position relative to sea level after the 4.6 minutes?
Enter your answer as a decimal in the box.
ft
Answers
2312 FPM for 2.6 minutes
2312 x 2.6 = 6011.2
28 FPM for 2 minutes
28 x 2 = 56
6011.2 descend
55 ascend
0-6011.2 = -6011.2
ans + 56 = -5955.2
:)
Can You Solve This?
(if you can't see what it says the question is: "Using given algebra tiles, write an expression that is equivalent to the quantity represented in the model below" )
Answers
Answer: move the icons thing to the box in your choice I think
35 is 20% is what number ANSWER FAST!!!!!
Please show work with double number line Thanks.
Answers
Answer:
175
Step-by-step explanation:
HELP QUICKKK
Car A is traveling east at a steady speed of 60 miles per hour. After 2 hours, it is 130 miles east of Johnstown. Car B is traveling east on the same road. Its distance east of Johnstown is represented by the graph. Where were the two cars in relation to each other when they began traveling? A. Car A was 10 miles east of car B. B. Car A was 60 miles east of car B. C. Car B was 20 miles east of car A. D. Car B was 10 miles east of car A
Answers
Answer:
D. Car B was 10 miles east of car A
Step-by-step explanation:
→ Work out how many miles car A travelled
130
→ Work out how many miles car B travelled in 2 hrs
120
→ Find the difference
Car A is bigger by 10 miles
Answer:
Car A was 10 miles east of car B
HELP, BRAINLIEST IF CORRECT Two teams working together can finish a job in 8 days. if the first team works alone for two days and the second team works alone for 5 days, 5/8 of the total work still remains. How many days will it take each team to finish the work alone?
Answers
Answer:
If 2 teams work together they can finish a job in 8 days. The rate of work of the first team is 5/8 of the rate of the second team. How many days each team needs to complete this job working alone.
Step-by-step explanation:
WILL MARK BRAINLIEST!!!!!!!
There are 32 more pupils in the Robotics Club than in the Art Club. The number of pupils in the Robotics Club is 18 less than 3 times the number of pupils in the Art Club. How many pupils are there in the Robotics Club?
Answers
Answer:5. There are 32 more pupils in the Robotics Club than in the Art club.
Step-by-step explanation:
Answer:what
Step-by-step explanation::>
Alan wears his coat when the temp is colder than -4.c
write an inequality that i true only for temps(t) at witch Alan wears his winter coat
Answers
Answer:
T<-4.c
Step-by-step explanation:
If it’s “less than” then the stated number is the highest number that you can have
PLEASE HELP ASAP!! ILL GIVE BRAINLIEST IF CORRECT
Two linear functions are represented in different formats.
Function 1:
x y
0 5
2 11
5 20
8 29
Function 2: (image below)
Which statements are true?
Select each correct answer.
Function 1 has a greater rate of change than function 2.
Function 2 has a greater rate of change than function 1.
Function 1 has a greater y-intercept than function 2.
Function 2 has a greater y-intercept than function 1.
Answers
Answer:
Function 1 has a greater Y intercept than that of function 2
Step-by-step explanation:
Y intercept can be found by replacing x by 0 or
x = 0 0f the given function.
in this case Function 1 has a Y intercept of 5 when x =0
on the other hand, function 2 crosses the y axis once at -1 which is the y intercept.
you can now clearly see that
y = 5 > y = -1
---> 5>-1
so that's why we conclude that 1 has a greater Y intercept.
What is the slope of the line represented by the points in the table?
Negative 0.05
Negative .005
0.005
0.05
Answers
Answer:
Positive 0.05
Step-by-step explanation:
[tex](-1,-.3) (1, -.2)[/tex]
[tex]m=\frac{-.2-(-.3)}{1-(-1)} =\frac{-.2+.3}{1+1} =\frac{0.1}{2} =0.05[/tex]
Hope this helps
SORRY IF THIS IS NOT CORRECT
The question is attached.
Answers
Explain, in detail, how you know if these are equivalent.
Answers
Answer:
they are equivalent.
Step-by-step explanation:
to find equivalent fractions, we need to multiply the numerator and denominator of the first fraction by the same number. this creates an equivalent fraction. 5 goes into 15 3 times, and 8 goes into 24 3 times. this shows that if we multiply both the numerator and denominator of the first fraction by 3, then we end up with the second fraction, proving that they are the same. hope this helps!
5/8. Each one you multiply by 3 is gonna be 15/24. 5 is a common factor of 15 and 8 is the common factor of 24
Evaluate {3^4}{3^2}
for brainliest plz help me
Answers
Answer:
3^4 x 3^2 = 729
Step-by-step explanation:
Answer:
[tex](3^4)*(3^2)=729[/tex]
Hope this helps.