Answer:
x = -2
y = -4
Step-by-step explanation:
The way systems of equations work is that you have to substitute to solve for a variable *(only one of the 2 ways to figure this out)*
so, we will use addition property of equality in a form to add the two equations together, since +5y and -5y added together will cancel out.
that would leave
5x = -10
divide both sides by 5
x = -2
Now that we know x = -2, we can plug in -2 into one of the equations to find y.
2 ( -2) + 5y = -24
-4 + 5y = -24
-4 + 4 + 5y = -24 + 4
5y = -20
y = -4
x = -2
y = -4
Two numbers have a sum of 12 and a difference of 4. What is the smaller of the two numbers?
Use distributive property to rewrite expression -8((-2-3/4)-8)
write the equation of the line
Answer:
y=1x+0
Step-by-step explanation:
it is going up by 1 and it cross the y-axis at 0
Write an equation in slope-intercept form for a line that passes through points (-1, 2) and (5, -10)
Help me need the answer!!!!!
Answer:
Hope that helps
Step-by-step explanation:
b) two pairs that are solutions
x>=-4
x>=-4x<=1
-4<=x<=1
two pairs that are not solutions
-18<x<-13
Lilli sent 40 text last week. This week the amount of text she sent decreased by 10%. How many text did she send this week?
Answer:
36 texts
Step-by-step explanation:
Last week = 40 texts
This week = 40 -10%of 40
= 40-4
=36 texts
Hope this helps you.
GIVING BRAINLIEST AND 59 POINTS PLSSS help with all 1. Which number in the image above indicates
the part of the electromagnetic spectrum
used by a refracting telescope? sc.8.0.5.11
A) 2
BB
D
5
Answer:
only 5 pts lol
Step-by-step explanation:
A bus driver started her day with an empty bus. At her first stop she picked up
11 people. At her second stop she picked up 5 more people and let 7 people
get off. At her third stop she picked up 5 people and let 2 off. How many
people were on the bus as the driver left the third stop?
12 people were on the bus.
Step-by-step explanation:11+5-7+5-2=12
pleaase please please please please help meeeeeeeee i cant rn please help pleaseeee
Answer:
x+7
Step-by-step explanation:
1. The distance that Giselle can run is a function of the amount of the time she speeds running. Giselle runs 3 miles in 21 minutes. Assume she runs at a constant rate.
a. Write an equation in two variables that represents her distance run, y, as a function of the time, x, she spends running
b. Use the equation you wrote in part (a) to determine how many miles Giselle can run in 14 minutes.
c. Use the equation you wrote in part (a) to determine how many miles Giselle can run in 28 minutes.
d. Use the equation you wrote in part (a) to determine how many miles Giselle can run in 7 minutes
Answer:
How does she run so fast anyways
Step-by-step explanation:
A. well y=3 mi and x=21min so then we multiply and figure out that it is aproximatly 12mi/hr.
B. I beleive is aproximatly 1.5 mi
C. I think is aproximatly 3.2
Now I know that that is just close but not quite exact but it might get you closer.
00:00
Select all the fractions that are equivalent to 2 /
5
Use the area models to help.
Answer:
this doesnt make sense but the answer is
rcpl 2/5 = 5/2 = 2 1/2
Step-by-step explanation:
2 1/2
Answer:
hfrrgiooy3decctvr cb muh yt? hmm
Help...Anybody know??
Answer:
The missing number is 162, 4, 8, 16 , 32, 64
The sequence has a factor of 2 between each number . Each term ( except the first term) is found by multiplying the previous term by 2
I hope it helps
Which equation can be used to solve x + 3 = 15?
Answer:
12
Step-by-step explanation:
12+3=15
help pls i fell asleep i wanna go back help ;;-;;
Answer:
another person already got this, but operation
Step-by-step explanation:
Write out the first five odd numbers, starting at 1
Answer:
1, 3, 5, 7, 9
Step-by-step explanation:
hope this helps!
What is a and b pls answer ASAP I need it !!! Plsss
Answer:
The value of a = 5.
the value of b = 6.
Step-by-step explanation:
Given the points on the line
(6, 10)(a, 8)(4, b)(2, 2)Given that all of the points are on the same line and the line represents a linear function.
Thus, the slope between any two points must be the same.
First, determine the slope between (6, 10) and (2, 2)
(x₁, y₁) = (6, 10)
(x₂, y₂) = (2, 2)
Using the formula
Slope = m = [y₂ - y₁] / [x₂ - x₁]
= [2 - 10] / [2 - 6]
= -8 / -4
= 2
Thus, the slope of the line = m = 2
Determine the value 'a'
(x₁, y₁) = (6, 10)
(x₂, y₂) = (a, 8)
Using the slope formula to determine the value of 'a'
Slope = [y₂ - y₁] / [x₂ - x₁]
As the slope between two points is 2.
now substitute slope = 2, (x₁, y₁) = (6, 10) and (x₂, y₂) = (a, 8) in the slope formula
Slope = [y₂ - y₁] / [x₂ - x₁]
2 = [8 - 10] / [a - 6]
2(a - 6) = 8 - 10
2a - 12 = -2
2a = -2 + 12
2a = 10
divide both sides by 2
a = 5
Therefore, the value of a = 5.
Determine the value 'b'
(x₁, y₁) = (2, 2)
(x₂, y₂) = (4, b)
Using the slope formula to determine the value of 'b'
Slope = [y₂ - y₁] / [x₂ - x₁]
As the slope between two points is 2.
now substitute slope = 2, (x₁, y₁) = (2, 2) and (x₂, y₂) = (4, b) in the slope formula
Slope = [y₂ - y₁] / [x₂ - x₁]
2 = [b - 2] / [4 - 2]
2(4 - 2) = b - 2
8 - 4 =b - 2
4 = b - 2
b = 6
Therefore, the value of b = 6
What is the x value in the follow system?
3x - y = 7
2x + y = 3
Answer:
x=2
Step-by-step explanation:
1. What is 7/50 as a Percentage?
2. What is 3/25 as a Percentage?
3. What is 3/16 as a Percentage?
Please help!
The quotient of 363636 and 333 is jjj.
Step-by-step explanation:
3=j
so 36(j) now divide that 36 divided 3 = 12
so 12=j
(This was kind of confusing but this is the best I can give you!)
Answer:
12
Step-by-step explanation:
PLZ HELP ITS VERY VERY VERY DUE
Answer:
The desktop computers will cost 2,850 and the notebook computers will cost 4,875 and if someone got n notebooks and d desktops it will cost m money
Step-by-step explanation:
hope this helps
How do I find the slope
Answer:
Slope is -1
Step-by-step explanation:
Use the equation y = mx + b
Find the y-intercept (b) intersecting point on the y-axisGraph it and you'd get 10Choose any x and y points from the table. I'll choose (5,5) Substitute: 5 = 5m + 10Solve for m --> m = -1Your slope is -17-4[3-(4y-5)]
distributive property
Answer: =16y−25
Step-by-step explanation:
Distribute:
=7+(−4)(3)+(−4)(−4y)+(−4)(5)
=7+−12+16y+−20
Combine Like Terms:
=7+−12+16y+−20
=(16y)+(7+−12+−20)
=16y+−25
Ali can bake 105 cookies in 3 hours. At that rate, how many cookies can she bake in 5 hours?
so first you find out how many she can bake in 1 hour so you divide 105 and 3 which is 35
so since she bakes 35 cookies and hour you multiply 35 by how many hours she cooks
so 35 x 3 =105 35 x 5=175
Ali cooks 175 cookies in 5 hours
help pleasee! i have to turn this in soon
b 35 is the answer sorry if I'm worng
Classify the quadrilateral using the name that best describes it.
Othombus
O trapezoid
O rectangle
O square
0. The weight of an object on the Moon is about 16.5% of its weight on Earth. The weight of an astronaut on the Moon is 24.75 pounds. How much does the astronaut weigh on Earth?
Answer: 150 pounds
Step-by-step explanation:
Let the the astronaut weight on Earth be represented by x.
Based on the information given in the question, thus can be formed into an equation as:
16.5% of x = 24.75
16.5% × x = 24.75
16.5/100 × x = 24.75
0.165x = 24.75
x = 24.75/0.165
x = 150 pounds
The astronaut weigh 150 pounds on Earth.
the distance between the two points rounding to the nearest tenth (if necessary).
(-8,1) and (-4,-5)
Answer:
7.2
Step-by-step explanation:
6^2+4^2=52
sqr 52 is 7.21110255 so its 7.2
Five friends share 6 snacks equally.
How many fruit snacks will each friend get?
Explain with examples.
Answer:
A
Step-by-step explanation:
Explain the steps
3(2y + 5) = -21
Answer:
-6
Step-by-step explanation:
3(2y+5)=-21
2y+5=-21/3
2y+5=-7
2y=-7-5
2y=-12
y=-12/2
y=-6
Find the value of x 8.5,9,7.5,6,7,x ;the mean is 8
Answer:
x= 10
Step-by-step explanation:
Mean is the sum of all values divided their number
(8.5+ 9 + 7.5 + 6 + 7 +x) / 6 = 8
(8.5+ 9 + 7.5 + 6 + 7 +x) = 8*6 = 48
(8.5+ 9 + 7.5 + 6 + 7 +x) =48
(38 +x) = 48
x= 48-38 = 10