In systems by substitution what is y=x+8 and x+y=2
Answer:
x = -3
Step-by-step explanation:
y = x + 8 and x + y = 2
Using substitution, we know that y = x + 8, so:
x + y = 2
x + (x + 8) = 2
2x + 8 = 2
2x = -6
x = -3
Then we solve for y:
x + y = 2
-3 + y = 2
y = 2 + 3
y = 5
In a class of 25 students, 16 had at least one pet. What percent is that?
-32%
-40%
-64%
-80%
Answer:
-64%
Step-by-step explanation:
Hope this helps you
Answer:
64%
Step-by-step explanation:
25 x 0.64 = 16
I NEED HELP LIKE NOW!!!! PLEASE!
Rewrite y = sqrt16x+80 - 4 to make it easy to graph using a translation. Describe the graph.
Thank you!
Answer:
Wat w Polsce i w sumie to nic innego niż
If I ate 24 cockroaches and threw up 30 how many did I eat before
Answer:
54
Step-by-step explanation:
Answer:
6 0.0 But.. What type of question is this
Step-by-step explanation:
2 of 6
calculator
- Get help
Given that AB is a line segment and the angle y = 47°,
work out the value of the angle marked X.
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Answer:
ddgklkmbxawryunnvxzfdszAaefgu
What is the rate of change of the function y = 6x-1y
Answer:
3
Step-by-step explanation:
dy/dx = 6dx/dx -1dy/dx
dy/dx= 6 - 1dy/dx
2dy/dx= 6
dy/dx = 3
Is this number prime or composite
Answer:
no
Step-by-step explanation:
its composite
Answer:
Composite
Step-by-step explanation:
70 is a composite number as it has factors other than 1 and itself.
i don’t understand, explain also
Answer:
32
63
Step-by-step explanation:
m<BCA=180-148-32 Subtract 180-148 b/c x<BCA is along the straight line ACD. A straight line will have an angle of 180 degrees.
m<CAB=180-32-85=63 All triangles have angles which add up to 180 degrees. Subtract 32 and 85 from 180 to get 63.
Step-by-step explanation:
148 + x = 180
x = 180 - 148
x = 32
Find m<CAB basically means find the measure of the angle of A ( m<A )
m<B + m<A + x = 180
85 + m<A + 32 = 180
117 + m<A = 180
m<A = 180 - 117
m< A = 63, so m<CAB = 63
And m<BCA means find the measure of angle C(m<C) or as we did it earlier as x, which is the same thing.
So m<BCA = 32
What are 2 equivalent ratios for 3/38
Answer:
6/38, 9/38 are two
Multiply by 2 and 3 DONT multiply the denominators when multiplying.
1. observe the following tables and find if x and y are directly proportional:
Give answer plzz
yes here x and y are directly proportional when looking at the x-coordinate
Step-by-step explanation:
here,
x1=7, y1=14
x/y=7/14
=1/2.
when considering the second coordinates,
X2=9/18=we will get the answer again
1/2.
all the coordinates is proportional in this form it is all will get the answer one by two so this x -axis and y-axis are directly proportional
Match each equation with its graph. Use the graph of
y= x, shown in red, to help.
Answer:
igggg
Step-by-step explanation:
hfghggghvvhhhgghu
What is the slope of the line that passes through the points (9,6) and
(5, -8)?
12. Three friends went to an ice cream parlor for ice cream. They each paid $3.51 for their ice
cream, including an 8% sales tax.
What was the total cost of all three bowls of ice cream before tax was added?
$
Answer:
total cost - $3.23 per icecream cone no tax // cost is $9.69 all 3 ice cream cones no tax // solve by multiplying .08 by $3.51. you get .28 // subtract that from $3.51 to solve
on a map, the length of a nature center Trail is 6.5 cm. If the scale is 2 cm to 10 km oh, what is the actual Trail? BRAINLY
Answer:
32.5 km
Step-by-step explanation:
6.5 / 2 = 3.25
3.25 x 10 = 32.5 km
Hope that helps!
Answer:
32.5 km
Step-by-step explanation:
Our ratio is 2cm: 10km
We can also write a ratio to look like a fraction. I'm attaching a picture. Sometimes it's easier to see that way.
We cross-multiply, then divide.
Ask any questions in the comments.
I need help mate.
You have $75 and need to buy 9 books at the bookstore and each book costs d dollars.
Write an algebraic expression to represent the amount of money left over.
Answer:
75-9d
Step-by-step explanation:
Hello,
The Answer to the question is 75-9d let me explain why,
you are asking, how much money is leftover. For me to get that I need to know that for every book it cost "d" dollars.
You know you have $75, and you need 9 books, we don't know how much they cost but we don't really need to.
75 - 9d
75 is the total. You need to subtract it by how many books your buying, 9.
The books are d amount of dollars, so we put 9d so that we know that for every 1 book it cost d amount so technically 9 is the amount of books times d, how much 1 book costs
Hope you can understand, I was having some trouble finding a way to explain it so my bad.
Also, I haven't done that in a while so sorry if I'm wrong
-Nova
okay this is my last one.. I think dfghmhgfd
We know that :
[tex]\color{hotpink} \tt \: circumference \: of \: a \: circle\color{plum} = 2\pi r[/tex]
So, let the diameter of this circle be x.
Which means :
[tex] =\tt2 \times \pi \times r[/tex]
[tex] =\tt 2 \times x \times \pi = 12\pi[/tex]
[tex] =\tt 2x\pi = 12\pi[/tex]
[tex] =\tt x = \frac{12}{2} [/tex]
[tex] = \tt \: x = 6 \: m[/tex]
Thus, the radius of the circle Robert drew = 6 m
Since the circle in option B has a radius of 6 m, it is the circle Robert drew.
▪︎Therefore, the correct option is (B)
2) A fair coin was tossed 75 times. The coin landed on Heads 42 times and Tails 33 times. What is the experimental probability of the coin landing tails side up? Your answer needs to be a fraction in simplest form. Grid in boxes below. One digit/symbol per box, 7. SP.6 5) Tanya set a goal to swim 30
Answer:
[tex]\frac{11}{25}[/tex]
Step-by-step explanation:
In the experiment that was conducted the coin was tossed a total of 75 times and out of those times it only landed on tails 33 times. Therefore the experimental probability of the coin landing on tails can be calculated by the dividing the times it landed on tails by the total number of times it was tossed. Like so...
[tex]\frac{33}{75}[/tex] or 0.44
This fraction can also be simplified to its simplest form of [tex]\frac{11}{25}[/tex] which is obtained by dividing both the numerator and denominator by 3
who else is being stressed of school right now??
i am so much can someone give advice on how to stop it??
:)
:)
:)
Answer:
Finish your homework first (EVERYTHING) before videogames
Step-by-step explanation:
2.)
Find the perimeter of an isosceles triangle whose base is 16 cm and whose height is 15 cm.
Answer:
50 cm
Step-by-step explanation:
The altitude from the vertex to the base bisects the base and divides the triangle into 2 right triangles.
Using one of the right triangles with legs 8 and 15 , then hypotenuse h is
h² = 8² + 15² = 64 + 225 = 289 ( take the square root of both sides )
h = [tex]\sqrt{289}[/tex] = 17
The 2 congruent sides of the isosceles triangle are 17 cm
Then the perimeter P is
P = 17 + 17 + 16 = 50 cm
The perimeter of the rectangle is 28 units.
What is the value of w?
5 units
7 units
74 units
15 units
Answer:
5 units is the correct value of W
A line passes through (-3, 6) and has a slope of -5.
What is an equation of the line?
Answer:
y=-5x-9
Step-by-step explanation:
y-y1=m(x-x1)
y-6=-5(x-(-3))
y-6=-5(x+3)
y=-5x-15+6
y=-5x-9
what is 4x-7y=3
x-7y= -15
Answer:
-3/4 and y= 3/7
Step-by-step explanation:
Please help me. its due in 15 minutes.
Answer:
sorry
Step-by-step explanation:
Answer:
$3,685.9
Step-by-step explanation:
Pls help ASAP!!!!!!!!
Pls help
I will cash app if I get it right
Answer:
39 degrees
Step-by-step explanation:
97+44= 141
141 - 180 = 39
x + 2y < -2
How do I graph this
Answer:
Put
[tex]x < - 2 - 2y[/tex]
Then put some of value to y and get x then we can graph it
PLEASE HELP ASAP
What is the area of this polygon?
Answer:
45
Step-by-step explanation:
The area can be found by sectioning the polygon into three shapes. A rectangle with an area of 18 inches can be found at the bottom, while the top can be divided into two triangles. The triangle on the left has an area of 18in^2, (1/2*6*6) while the triangle on the right has an area of 9 in^2 (1/2*6*3).
Total area for all three shapes is 45 sq. inches
Resuelve
14 - 15 – (-13) + 12 – (-11)
. 20 – 40 – (- 50) + 70 – 100
(FOR BRAINLIEST!!!)
Type the correct answer in the box.
The line of best fit for this scatter plot shows the relationship between the average temperature and the monthly electricity bill at Jenny's house.
Answer:
Around 200 Dollars
Hope it helps
Answer:
$200
Step-by-step explanation:
Maria's job pays her $1500 a month what is her gross weekly wage
Answer:
annual: $18000
weekly: $346.15
The amount of a certain radioactive substance decreases by 15% every hour. If a sample starts with 100 g of this radioactive substance, which function represents the amount of radioactive substance left after x hours?
A- f(x)=100(0.15)^x
B- f(x)=100(0.85)^x
C- f(x)=100(1.15)^x
D-f(x)=100(1.85)^x
Answer:
A
Step-by-step explanation:
I took the test now that is what I got.
Hope this helps.
The function that represents the amount of radioactive substance left after {x} hours is : f(x)=100(0.15)ˣ.
What are algebraic expressions?In mathematics, an expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.Mathematical symbols can designate numbers (constants), variables, operations, functions, brackets, punctuation, and grouping to help determine order of operations and other aspects of logical syntax.Given is that the amount of a certain radioactive substance decreases by 15% every hour. A sample starts with 100 g of this radioactive substance.
The function that represents the amount of radioactive substance left after {x} hours is -
f(x)=100(0.15)ˣ
Therefore, the function that represents the amount of radioactive substance left after {x} hours is : f(x)=100(0.15)ˣ.
To solve more questions on algebraic expressions, visit the link below-
brainly.com/question/1041084
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