Answer:
x = -2, y = -4, or (-2, -4).
Step-by-step explanation:
5x + y = -14
5x - 3y = 2
If we look at the first equation, we can see that y can be easily isolated.
5x + y = -14
Subtract 5x from both sides.
y = -5x - 14
Now we have a variable that we can plug into the second equation.
5x - 3y = 2
5x - 3(-5x - 14) = 2
Distribute the -3 across each term in the parentheses.
5x + 15x + 42 = 2
Combine like terms.
20x + 42 = 2
Subtract 42 from both sides.
20x = -40
Divide both sides by 20 to isolate x.
x = -2
Plug in x = -2 back into one of the equations to find y.
y = -5x - 14
y = -5(-2) - 14
Multiply.
y = 10 - 14
Subtract.
y = -4
Our solution is x = -2, y = -4, or (-2, -4).
Check your answer by plugging both values into one of the equations.
5x - 3y = 2
5(-2) - 3(-4) = 2
-10 + 12 = 2
2 = 2
Your answer is correct.
Hope this helps!
Nikki sold 24 boxes of cookies. Nikki sold 4 more than 5 times the number of boxes of cookies Samantha sold. Exactly how many boxes of cookies did Samantha sell?
answer 4
explanation
Nikki sold 4 more than Samantha number times 5
24-4=20
so Samantha number times five equals 20
20÷5=4
Samantha sold 4 boxes of cookies
You can kick "b" soccer balls into a goal in 2 minutes, and you have been kicking for 16 minutes. You take a break then kick 3 more balls. Do NOT try to solve, but write me an EXPRESSION that represents how many balls you kicked in total
Answer:
SCHOOL
Step-by-step explanation:
Volume of a rectangular prism with a length of 6 inches, width of 2 inches, and height of 4 inches,
Answer:
[tex]V=48 inch^3[/tex]
Step-by-step explanation:
From the question we are told that:
Length of prism l=6 inches
Width of prism w=2 inches
Height of prism h=4 inches
Generally the equation for Volume of rectangular prism is mathematically given by
[tex]V=l*w*h[/tex]
[tex]V=6*2*4[/tex]
[tex]V=48 inch^3[/tex]
Therefore of Volume of rectangular prism is
[tex]V=48 inch^3[/tex]
Find the probability. Write answer as a reduced fraction using the forward slash (/).
You have 10 blue marbles, 8 red marbles, and 6 white marbles in a bag. You pick a red marble and put it back, pick a blue marble and put it back, and then pick a red or white marble.
Answer: depends on which probability you want (tell me and I’ll edit)
Step-by-step explanation:
10 blue
8 red
6 white
24 total
Pick a red marble: 8/24 or 1/3
Pick a blue marble: 10/24 or 5/12
Pick red or white: 14/24 or 7/12
do you want to know the probability of doing all that (pick red, put back, pick blue, put back, then pick red or white)? Or just the probability of each outcome?
Piper is buying a bottle of bubbles for $5.99. If there are 3 gallons of bubbles in the bottle, what is the unit rate?
Answer:
5.99/3
Step-by-step explanation:
Teachers usually except this stuff because it is technically correct
Can someone please help me with math.
Answer:
4: No
5: A
Step-by-step explanation:
4: The mapping does now represent a function. In a function each x value can only have 1 corresponding y value ( meaning that the x values can not repeat.) In the mapping the x value 3 corresponds with 2 y values therefore the mapping is not a function.
5.
Formula for volume of a cylinder = [tex]V=\pi r^2h[/tex]
Where r = radius and h = height
The cylinder shown has a given diameter of 22ft and a given height of 10ft
In order to use the formula we must convert the diameter to radius.
To do this we divide the diameter by 2 ( this is because the radius is equal to half the diameter )
so radius = 22/2 = 11
Now we plug in the dimensions into the formula
[tex]V=\pi 11^210\\11^2=121\\121*10=1210\\1210\pi[/tex]
Remember, it says " Leave your answer in terms of pi," therefore we do not apply pi and leave it as 1210π
We can conclude that the answer is A
A soccer dome shaped like a hemisphere has a volume of 450,000 cubic meters. What is the area of its floor? Use 3.14 for π in your calculations and round your answer to the nearest square meters
Answer:
3282 m^2
Step-by-step explanation:
volume of a hemisphere = (2/3) x (n) x (r^3)
n = 22/7
r = radius
r = (450,000 x (3/2) x(1/3.14)) ^1/3
r = 45.72
Area of a semicircle = 1/2 x n x r^2
1/2 x 45.72^2 x 3.14 = 3282 m^2
Below. What is m∠1?
m∠1 =
Answer:
70 degrees
Step-by-step explanation:
Answer:
Angle 1 is 70
Step-by-step explanation:
Because (angle 1 + 31=101) so 101-31= 70
HELP FAST!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
It is A 7
Step-by-step explanation:
2(7)+4= 18
14 + 4=18
Please help with this, will mark brainlist if correct
Answer:
the ratio is 24/7___,_______
Answer: 24/7
Step-by-step explanation:
Tan is Opp/Adj
Tan C is 24/7
1.
Use synthetic division and the Remainder Theorem to find P(a).
P(x) = x3 + 7x2 + 4x; a = −2
2
12
−2
0
Answer:
12
Step-by-step explanation:
Please write this function as P(x) = x^3 + 7x^2 + 4x + 0. This third order function has four coefficients. We set up synthetic division with -2 as the divisor:
-2 / 1 7 4 0
-2 -10 12
----------------------
1 5 -6 12
The remainder is 12. Accordng to the Remainder Theorem, the value of P(x) at x = -2 is 12.
PLEASE HURRY MY TEACHER IS ABOUT TO CALL ON ME. I NEED THE AREA
Answer:
65 i did it quick, i might be wrong
Step-by-step explanation:
bh/2
10*39/3
390/3
130/2=65
Express 80 g as a fraction of 1 kg.
Give your answer as a fraction in its lowest terms.
How much is 3×4+9÷6+44×77×777×00+9?
Answer:[tex]3*9+9/6+44*77*777*00+9[/tex], so using order of applications, it simplifies to 27+1.5+9 after multiplying and dividing, and the final answer is 37.5
Step-by-step explanation:
Answer:
22.5
Step-by-step explanation:
pro tip use bodmas
3*4+9/6+44*77*777*00+9
3*4+1.5+44*77*777*00+9
12+1.5+0+9
22.5
Need Help with a math question asap
I can't seem to get this one quite right
2(x+8)^(2)+9=29
Answer format: (__,__)
Answer:
x = {-8 - √10, -8 + √10} exact answer
x = {-11.16, -4.84} decimal approximation
Step-by-step explanation:
2(x + 8)²+ 9 = 29
Subtract 9 from both sides
2(x + 8)² = 20
Divide both sides by 2
(x + 8)² = 10
Take the square root of both sides
x + 8 = ±√10
Subtract 8 from both sides
x = -8 ± √10
x = {-8 - √10, -8 + √10} exact answer
x = {-11.16, -4.84} decimal approximation
When benny's sister is 24, Benny's age will be 125% of her age. How old will Benny be then, and is Benny is 12 years old now, how old is penny now?
Answer:
A. 30
B. 6
Step-by-step explanation:
We'll use P for Penny's age and B for Benny's age. When Penny is 24, Benny will be 1.25 her age. Thus:
B = 1.25 * 24
(benny is 25% older than her)
So Benny's age then will be 1.25 * 24 = 30.
When Benny is 30, Penny will be 24. This means that he is older than her by 6 years. Think about it for a second: Benny will always be 6 years older than her. You can write that as:
B = P + 6
If Benny is 12 years old now,
12 = P + 6
Subtract 6 from both sides and you get
6 = P
or P = 6
Penny is 6 years old when Benny is 12.
6th grade math plsssssss whoever does this I will give any vbuck card, or Microsoft. PLSSS HELP!
Answer:
5 toppings
Step-by-step explanation:
$20 - $9 = $11 dollars left for toppings
$11 ÷ 2 = 5.5
So, you can get 5 toppings with 50 cents left.
Have a great day!
can anyone help please? I’ll give brainliest !
Answer:
I think he has $9800 left to pay off
Step-by-step explanation:
multiply the tuition(10350)by 2. Then subtract 1/3 of that (6900) by the price (20700) thensubtract the $4000 he gets from his job
Graph the following features:
Slope = 4 Y-intercept: -1
Answer:
Graph the point at -1 on the y-axis, then the next at 4 on the x-axis, then connect them
This is the graph as in upload
SOMEONE PLS HELP ME
I ATTACHED A PIC
Answer:
See solution below
Step-by-step explanation:
The centre of the circle will be the midpoint of both coordinate
Given the coordinates P(-7, -10) and Q = (3,2)
X = x1+x2/2
X = -7+3/2
X = -4/2
X = -2
Y = y1+y2/2
Y = -10+2/2
Y = -8/2
Y = -4
Hence the centre is at (-2, -4)
The distance between the coordinates will be the diamter
PQ =√(3+7)² + (2+10)²
PQ =√(10)² + (12)²
PQ = √100+144
PQ =√244
radius = √244/2
Get the equation
(x-a)² + (y-b)² = r²
(x -(-2))² + (y-(-4))² = (√244/2)²
(x +2)² + (y+4)² = (244/4)
(x +2)² + (y+4)² = 61
This gives the required equation
An isosceles triangle has an angle that measures 110°. Which other angles could be in that isosceles triangle? Choose all that apply: 110 55 35 15
Answer:
35 degrees
Step-by-step explanation:
An isosceles triangle has two opposite sides. If the two angles are equal , it means the triangle is an isosceles. Because 90 degrees is greater than 45 degrees, the two sides with the same length, would have a smaller length than the third side
sum of angles in a triangle = 180
180 - 110 = 70
since 2 angles would be equal
70 / 2 = 35
Please help me solve this
Answer:
area of the square=18×18
=324 cm²
area of the circle=πr²
=3.142×9² (radius=18cm/2=9cm). =254.502 cm²
area of the shaded region=324-254.502
=69.498 cm²
x^2- 4x- 12 = 0
Solve by factoring and solve by completing the square
Use the formula (b/2)^2 in order to create a new term. Solve for by using this term to complete the square.
Cannot solve by completing the square.
The pair of triangles below have two corresponding parts marked as congruent. What additional information is needed for a SAS congruence correspondence?
A. EL⎯⎯⎯⎯⎯⎯⎯≅KA⎯⎯⎯⎯⎯⎯⎯⎯
E
L
¯
≅
K
A
¯
B. ∠E≅∠K
∠
E
≅
∠
K
C. ∠L≅∠A
∠
L
≅
∠
A
D. ∠C≅∠J
Answer:
∠C≅∠J
Step-by-step explanation:
Two triangles will be congruent by SAS information required ∠C≅∠J.
--------------------------hope it helps...have a great day!!The missing information that we need to establish a side angle side congruence is that ∠C≅∠J.
What is congruence?The congruence of a triangle can be established on three basis;
Side angle sideAngle angle sideSide side sideNow we know from the figure that the sides /CL/ = /JK/. It then follows that the missing information that we need to establish a side angle side congruence is that ∠C≅∠J.
Learn more about congruence:https://brainly.com/question/7888063
#SPJ5
5x-4=16 value of x is what?
Answer:
x = 4
Step-by-step explanation:
5x-4=16
Add 4 to both sides of the equation.
5x = 20
Divide both sides by 5.
x = 4
Answer:
x=4
Step-by-step explanation:
You first add 4 to both sides and get 5x=20. Then you divide both sides by 5 to isolate the x and get x=4.
Hope this helped :)
The water content of a certain fruit, by weight, is 80%. Therefore, 20% of the
fruit, by weight, is other material.
When left in the sun to dry, the fruit loses 75% of its water content, and the
amount of other material remains the same.
What percent of the dried fruit is water?
Your solution includes the percent water in the dried fruit and an explanation that supports your answer. in other words, how did you find that percent value?
Answer:
50% is water
Step-by-step explanation:
1. 80% is water and 20% is from other material
2. Lets say a fruit has 100g, to make it easier to understand
2. if the fruit loses 75% of its water, it will lose 75% of 80%, which is 60% of the total weight or 60g lost. The fruit is now 40g
3. If 20% was other material (20g), now other material is 50% (the same 20g)
4. Water is now only 20g, which is 50% of the total weight
Answer:
50% is water I think I am really sorry I I is wrong
Jenelle invested $13000 in two mutual funds. Fund A earned 5% profit during the first year, while Fund B suffered a 2.5% loss. If she received a total of $290 profit, much had she invested in each mutual fund a
Jenelle invested $ ____ fund A
Jenelle invested $ ____into fund B
Answer:
hola la respuesta es 3900 y 2348
Step-by-step explanation:
espero que te sirva
Hey Jeager whos that babe your with?
Answer:
lol
Step-by-step explanation:
\
Answer:
I'm a single pringle, so you must be referring to my stuffed sloth.
HELP I HAVE 10 MINUTES! 20 POINTS!
MATH
Answer:
x=10rad3 and y=10
Step-by-step explanation:
Answer is in attachment . Hope it helps .
If you could,please help me find the surface area. Thank you I appreciate it very much.
Answer:
SA ==736^2
Without unit = 736^2
Step-by-step explanation:
Start with base of a triangle face
Base = 12 Height = 8
1/2 x 12 x 8 = 48 cm^2 one side face surface area
48 x 2 = 96 cm^2 two side face surface area bold
----
Sides
10 x 20 = 200 cm^2 one side face surface area
200 x 2 = 400 cm^2 two side face surface area bold
-----
base 20 x 12 = 240 cm^2 single base. bold
Add up those values in bold = 240 + 400 + 96 =736 cm^2