Answer:
in the ordered pair; ( x = 27/4 , y = 1/4 )
Step-by-step explanation:
Given that:
The system of the equation shown below is:
-2x - 14y = 10
2x + 2y = 14
We are to use the elimination method to determine the ordered pair.
From the above equation:
-2x - 14y = 10 --- (1)
2x + 2y = 14 --- (2)
Add both equation 1 and 2 together in order to eliminate x, then we can solve for y first.
-2x - 14y = 10
2x + 2y = 14
0 - 16y = -4
- 16 y = - 4
divide both sides by - 16, Then:
-16y /-16 = -4/-16
y = 1/4
Since y = 1/4, Then from equation (2), x will be :
2x + 2y = 14
2x + 2(1/4) = 14
2x + 1/2 = 14
2x = 14 - 1/2
2x = 13.5
x = 13.5/2
x = 27/4
Thus, in the ordered pair; ( x = 27/4 , y = 1/4 )
Select the two expressions that are equivalent to 38 x 27.
O 35
O 311
O 324
O 38 x 33
O 311 x 27
Answer:
none
Step-by-step explanation:
i dont know, but i calculated it and none of them work, are you sure you typed it in write?
Round 345,047 to the nearest thousand ten thousand hundred thousand
345,000 ; 350,00 ; 300,000.
Answer:
300,000
Step-by-step explanation:
the ten hundred thousands place would be
100,000
therefore the nearest ten hundred thousand would be
300,000
because the 345,047 isn't a high enough digit to be 5+ and make the nearest thousand 400,000 and not 300,000
If that doesn't help, think of it like this...
Anything before the place is what determines if the number will be higher or lower.
45 is lower than 50 and 50+ is the passing number to make the number 400,000.
Tip: when your rounding numbers the only numbers that stay the same and don't turn into 0's is like the 3 in "345,047" but the "45,047" part turns into 0's is because those aren't needed and because you rounded it, it's like it takes those numbers to make what you rounded to higher or lower.
so if you look at it like that the answer is 300,000.
<3 Enjoy,
Dea
The volume of the rectangle prism shown below is 96 cubic feet. The dimensions of the prism’s base are 4 feet and 3 feet. What is the prism’s height in feet
Answer:
8feet
Step-by-step explanation:
Cookies are sold in the lunchroom for $1.50. Ana wants to buy cookies for a
group of her friends. If she has $20, which inequality can be solved to show the number of cookie c she can buy?
Answer:
1.50c <_ 20
Step-by-step explanation:
Lorna has $60 and her sister has $120. Lorna
saves $7 per week, and her sister saves $5 per
week. Which equation and solution represent
the number of weeks, w, it will take for the girls
to have the same amount of money?
Step-by-step explanation:
whats theamountof money?
DO_ 1/2 of X is. please help
Answer:
x = 2
Step-by-step explanation:
Is it -1/2 or just 1/2 I'll just answer both
x = 4
So -1/2 of x or -1/2 of 4 is -2
And 1/2 of 4 is 2.
So the answer is most likely 2
and is probably point z
4/(-1/2) = -2
4/(1/2) = 2
who ever solves this is a math wiz
Help. I’m failing math and I need to finish 15 khans by tomorrow
Answer:
80
Step-by-step explanation:
Mario needs 32.5 m of chain link fence to enclose his garden. The cost of the fence is $6.88 per meter.
What is Mario's total cost?
$22.35
$22.36
$223.50
$223.60
What is 3 + 3?
I'm really stuck on this
Answer:
3 + 3 = 6
Step-by-step explanation:
I hope this helped!
What is 240,700 written in scientific notation?
Group of answer choices
2.407 x 10-5
2.407 x 105
2.40 x 105
24.07 x 104
Answer:
It is the 2nd option
Step-by-step explanation:
One line segment m is (3x + 5) units long and line segment n is (x - 10). What is the value of r if line segments m and n are congruent?
Answer:
I believe it is -17.5. Tell me if I am wrong
Step-by-step explanation:
3x + 5 = x - 10
-x -5 -x -5
2x = -15
x = -7.5
3(7.5) + 5
= 22.5 + 5
= -17.5
Convert 99000 milligrams into pounds. Round your answer to the nearest
hundredth.
Answer:
0.21825764 pounds
Find the prime number.
Group of answer choices
0
6
7
4
Answer: 7
Step-by-step explanation:
7 is a prime number
Answer:
7
Step-by-step explanation:
7 can't be divisible by anything but 1 and itself. All the other numbers can. Except 0. 0 isn't defined as a prime or composite number.
I hope this helps!
help asap please!!
I need the answer : 2/12 - (-3/4)
Answer:
11/12
Step-by-step explanation:
Answer:
=11/12
Step-by-step explanation:
Look at the attachment below
Hope this helps (:
Which operation will "undo" subtraction?
a. multiplication
b. subtraction
c. addition
d. division
Answer:
Addition
Step-by-step explanation:
Because if you have -6, just add 6 and then it will get undone
Answer:
addition
Step-by-step explanation:
hope it helps
If x - 2 is a factor of x2 + 3x + k, what is the value of k?
Answer:
-10
Step-by-step explanation:
4. Jeff and his brother Joe are saving money
to buy a video game that costs $52. Jeff
earns $8 each week mowing lawns and
spends $2 of it. Joe earns $10 each week
and spends $3 of it. Which expression can
be used to find out how many weeks it will
take for them to save for the video game?
52-[(8 + 2) - (10 + 3)]
b. 52 [(8-2) - (0 - 3)]
52 +[(8-2) + (10 - 3)]
d. 52 + [(8 + 2) + (10 + 3)1
a.
Answer:
52/[(8 - 2) + (10 - 3)]
Step-by-step explanation:
Jeff earns $8 and spends $2 each week.
Each week he keeps (8 - 2).
Joe earns $10 and spends $ each week.
Each week he keeps (10 - 3).
The total amount they keep each week is
(8 - 2) + (10 - 3).
If you divide the cost of the game by the amount they keep each week, you get the number of weeks.
Answer: 52/[(8 - 2) + (10 - 3)]
each ticket costs $34 If the venue needs to sell 86 tickets to break even, then how much money have they invested
in the concert?
Answer:
2924
Step-by-step explanation:
36
x 86
‐--------------
2924
8.5(4+3h)-h simplified
Answer:
24.5h + 34
Step-by-step explanation:
8.5(4 + 3h) - h
= 34 + 25.5h - h
= 24.5h + 34
I hope this helped!
The simplified form of 8.5(4+3h)-h is 24.5 + 34.
What is a numerical expression?A numerical expression is in the form of variables and constants separated by the operation of addition and subtraction. We can also form numerical expressions from statements.
Given an expression in variable h which is 8.5(4+3h)-h.
First, we'll apply distributive law to get rid of the bracket and separate the different terms. There are two more laws they are associative law and commutative law.
Distributive law state that a(b+c) = ab + bc.
34 + 25.5h - h.
24.5h + 34.
Learn more about numerical expression here :
https://brainly.com/question/14642484
#SPJ2
A bag contains 4 blue marbles, 9 green marbles, and 5 red marbles. One marble is drawn from the bag. What is the probability that the marble drawn is not blue?
Answer:
4blue marble+9 green marble+5 red marble=18marble totle
1 marble probility=1/17
1. What are the weekly wages for 40 hours of work at an
hourly rate of $8.50?
A $34.00
B $68.00
C $340.00
D $3,400.00
Answer:
the answer is c $340.00
Step-by-step explanation:
8.50*40=340
Answer:
$340.00
Step-by-step explanation:
I calculated it
A school has 117 fifth graders. Each fifth grader walks 7 laps during recess. What is the total number of the laps the fifth graders walk?
Answer:
They walk a total amount of 819 laps.
Alberto wants to keep their favorite tree from being uprooted by heavy winds. They plan to tie 3 sections of rope to a band on the trunk of the tree, 5 feet above the ground. They will tie each section of the rope to a stake in the ground 12 feet out from the base of the tree. How much rope will he need altogether?
Answer:
39 ft
Step-by-step explanation:
Using the description as a guideline I have drawn out the situation (badly drawn) as seen in the picture below. From the picture, we see that we need to find x which is the length of one of the ropes. Once we have this length we simply multiply it by 3 to find out how much rope we need altogether. Since this is the diagonal of a triangle we can use the Pythagorean theorem to solve for x.
Pythagorean theorem: [tex]a^{2} +b^{2} = c^{2}[/tex] .... which a and b are the two sides while x is the diagonal.
[tex]5^{2} +12^{2} = x^{2}[/tex]
[tex]25 + 144 = x^{2}[/tex]
[tex]169 = x^{2}[/tex] ... now we square root both sides
[tex]13 = x[/tex]
Now that we have the length of one of the ropes we simply multiply this by 3 to find the total amount of rope needed.
13 * 3 = 39 ft
I need help with this math problem
Answer:
The answer should be a positive 3 instead of a negative.
Step-by-step explanation:
The error is in the first step. The equation should've been set up like this...
-14+2y+4=4
-10y+2y=-4
2y=-4+10
2y=6
y=3
What is the sum?
23.85 + 7.42 + 16.15
Enter your answer in the box.
47.42
Answer:
47.42
Step-by-step explanation:
47.42 is ur answer
Just add them vertically and line up the decimal points.
23.85
7.42
16 .15
---------
47. 42
(2, 1) and (8, 9) *
Answer:
Step-by-step explanation:
Well thanks to you, it'll take about 20 seconds to write the answer.
9 - 1 ÷ 8 - 2 = 8÷6 = 4/3 or 1.4
Guys pls help i thought it is B but idk just to confirm.
Answer:Im going with d
Step-by-step explanation:
Factor the expression completly over the complex numbers x^4+10x^2+25
Answer:
Rewrite it in the form {a}^{2}+2ab+{b}^{2}a
2
+2ab+b
2
, where a={x}^{2}a=x
2
and b=5b=5.
{({x}^{2})}^{2}+2({x}^{2})(5)+{5}^{2}(x
2
)
2
+2(x
2
)(5)+5
2
2 Use Square of Sum: {(a+b)}^{2}={a}^{2}+2ab+{b}^{2}(a+b)
2
=a
2
+2ab+b
2
.
{({x}^{2}+5)}^{2}(x
(x^2 + 5)^ 2
Step-by-step explanation:
A drama club made $3,200 from a school play. Seventy-five percent of that amount came from ticket sales. Identify the values of the variables in the model. Then use the model to find the amount of ticket sales.
a =
b =
The amount of ticket sales is $
.
Answer:
a= 25
b= 800
the sale amount =2,400
Answer:
a is 25 which thats half b 800 the total amount of tickets is 2,400
Step-by-step explanation: