Systems of equations - substitution method
-8x+7y=10
Y=3x+7
Answers
Answer:
x= -3 , y = -2Step-by-step explanation:
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Related Questions
im board !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answers
Answer:
same
Step-by-step explanation:
Answer:
same
Step-by-step explanation: same free coins ;)
How can 14 x 50 help you find 14 x 49?
Answers
Answer/Explanation:
It might not help you figure out the exact answer, but it definitely helps you estimate. By knowing that 14x50=700, you can guess that 14x49 equals something close to 700.
Hope this helps! Have an amazing day ❤
In △RST, TR ≅ ST, m∠T=142∘. Find m∠S.
Answers
Answer:
m∠S = 142°
Step-by-step explanation:
If TR ≅ ST, then...
T≅S
R≅T
Answer:
19Step-by-step explanation:
what is 2 divided by 6
Answers
Answer:
2.333 repeating
Step-by-step explanation:
you divide 2 by 6 (srry i neede more characters)
you can do the repeat symbol by placing a slash over top of the 3rd 3
A spinner has five sections ( a,b,c,d,e,) the spinner is spun 84 times what is the experimental property landing on a round to the nearest percent
Answers
Answer:
17%
Step-by-step explanation:
convert 51 in base 10 into base 5
Answers
i cant put a link but i looked up "51 in base 5"
and got 201
The value of the equation is 51₁₀ = 201₅
What is an Equation?
Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given data ,
Let the equation be represented as A
Now , the value of A is
A = 51₁₀ be equation (1)
Let the number with base 5 be represented as B
Now , to convert the equation A to a number in base 5 ,
The equation calculation formula for 51₁₀ number to base 5 is
5 | 51
5 | 10 | 1
5 | 2 | 0
5 | 2 | 2
Therefore , the number B = 201₅
Hence , the value of the equation is B = 201₅
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write 3/4 as a decimal. Use method 1
Answers
Answer:
0.75
Step-by-step explanation:
if f(x)= -3x2 -5x, what is the value of f(-3)? (the 2 is to the second power )
Answers
Answer:
-12
Step-by-step explanation:
-3x^2-5x x is -3
-3(-3)^2-5(-3)
-27+15
A cheetah's speed was timed overa
100-yard distance. The cheetah was
(PLEASE HELP ME)clocked running 70 miles per hour. Which
equation shows the relationship between
the distance, y, and time, x, the cheetah
runs?
Answers
Answer:
y = 70x
Step-by-step explanation:
Note that d = rt where d is the distance, r is the rate/speed, and t is the time. Since we are given that the variable x is the time, 70mph is the speed, and the variable y is the distance, we can substitute these into d = rt, which we get y = 70x.
I hope this helps! :)
Find the area of the trapezoid. Please help!
Answers
Answer:
Area = 1/2 (a + b )h
area = 1/2 ( 22.2 + 8.52 ) 9.86
area = 1/2 ( 30.72) 9.86
area = 1 x 30.72 x 9.86 ÷ 2
area = 151. 4496cm²
Answer:
The area of the trapezoid is 151.45cm sq
What is the approximate area of the circle shown below?
OA. 30 cm2
OB. 39 cm2
DC. 121 cm2
OD. 19.5 cm2
Please help ASAP!
Answers
Answer:
C. 121cm2
Step-by-step explanation:
The area of a circle is pir^2.
Let pi be rounded to 3.14 and r = 6.2cm
6.2^2*3.14 = 120.76, which rounds to 121cm2
Answer:
C) 21 cm²Step-by-step explanation:
area of a circle = π r²
= π (6.2)²
≈ 21 cm²
On average, Cody runs 5 miles in 48
minutes. How fast should he plan to
run a 10 miles race if he maintains this
pace?
Answers
Answer:
6.25 Miles per hour speed
What is the value of the expression
1/2 (m-4) • n
A 1/2
B 1
C 2
D 7/2
Answers
Answer:
b. 1
Step-by-step explanation:
you lised m = 12 and n = 1/4 so...
1/2(12-4) x 1/4
4 x 1/4 = 4/4 = 1
Point C is located at (1, 2), and point D is located at (-4,-2). Find the point that is the distance from point C
to point D. (1 point)
a. (-0.25, 1)
b. (-1.5,0)
c. (-0.5, 1.5)
d. (0.25, 2.25)
Answers
Answer:
The answer would be c
Step-by-step explanation:
i choosed c because u have da negative sign in front of 4 and 2 and positive numbers with 1 and 2
Answer:
b
Step-by-step explanation:
I think this means to find the mid-point(?) of the line which by doing that you take both x-values and you add them and then divide by two, and then you take both y-values and add them and then divide by two. So you have: (1+-4)=-3, (-3/2)=-1.5
-1.5=x
(2+-2)=0, (0/2)=0
0=y
(-1.5, 0)
If x=−1 and y=−3, then 5(x2−7+y)=
Answers
Answer:
-60
Step-by-step explanation:
5(-1 times 2 -7 -3) = 60
The value of [tex]5(x^2-7+y)[/tex] at [tex]x=-1,y=-3[/tex] is [tex]-45[/tex].
Important information:
The given expression is [tex]5(x^2-7+y)[/tex].The given values are [tex]x=-1,y=-3[/tex].Value of expression:Substitute [tex]x=-1,y=-3[/tex] in the given expression.
[tex]5((-1)^2-7+(-3))=5(1-7-3)[/tex]
[tex]5((-1)^2-7+(-3))=5(-9)[/tex]
[tex]5((-1)^2-7+(-3))=-45[/tex]
Therefore, the value of [tex]5(x^2-7+y)[/tex] at [tex]x=-1,y=-3[/tex] is [tex]-45[/tex].
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need a quick answer please
Answers
I got it right for my test
Explanation
Bababoey
plz help in to cool bro
Answers
Suman sells a house and receives Rs. 14,25,000 after giving 5%
commission. What is the price of his house?
Answers
Step-by-step explanation:
selling p= X(let)
commission=5%
here commission amount= X*5/100
quick!! write an equation in slope intercept form using points (-3,0) (3,-4) !
Answers
Answer:
i dunno but the slope is -4/6
Step-by-step explanation:
You do y1-y2/x2-x1 and then find the rest using y=mx+b
asal and jovana call a taxi.the taxi driver charges $1.00 flag fall when they get in the car. the charge is then $2.00 for each kilometer they travel. they have $23 between them. how far can they travel.
Answers
They can travel 11 kilometers
did I get this answer right?
Answers
Answer:
Yes
Step-by-step explanation:
Yes
Answer:
No, the answer is suppose to be 9.
Step-by-step explanation:
if you did 54 divided by 18 you would get 3. so if you do 54 divided by 3 you would get 18. then if you do 27 divided by 3 it would equal 9.
so therefore your answer will be 9.
please mark as brainly.
Jane is studying the weather in Alaska. She has recorded the temperature for four days in January, in degrees Fahrenheit, as shown in the table.
Answers
I have attached an image of the complete question.
Answer:
Options A & F are correct
Step-by-step explanation:
From the image attached, we have the following recorded temperature for 4 days in January.
Monday: -5° F
Tuesday: -1° F
Wednesday: 3° F
Thursday: 5° F
Option A is correct because the temperature on Monday and Tuesday is negative and thus below zero.
Option B is not correct because the temperature on Monday and Thursday are not the same since they are -5° F and 5° F respectively
Option C is not correct because the temperature on all days was not above zero since on Monday and Tuesday had negative temperatures
Option D is not correct because the lowest temperature below zero is on Monday and not Thursday
Option E is not correct because the temperature on Wednesday and Thursday are positive and not below zero.
Option F is correct because Monday had a temperature of -5° F which is the lowest gotten below zero
The temperature on Monday and Tuesday is negative and thus below zero.
The temperature on Monday had a temperature -5F which is the lowest value below zero.
Given,
Jane recorded temperature for 4 days in January.
Monday: -5° F
Tuesday: -1° F
Wednesday: 3° F
Thursday: 5° F
According to the question,
Compare the temperature from the given value of the temperature.
This statement is the correct because the temperature on Monday and Tuesday is negative and thus below zero.This statement is not correct because the temperature on Monday and Thursday are not the same since they are -5° F and 5° F respectively. This statement is not correct because the temperature on all days was not above zero since on Monday and Tuesday had negative temperatures.This statement is not correct because the lowest temperature below zero is on Monday and not Thursday This statement is not correct because the temperature on Wednesday and Thursday are positive and not below zero.This statement is correct. because the temperature on Monday had a temperature -5F which is the lowest value below zero.For more information about statement comparison click the link given below.
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i need the equation in slope intercept form in fraction form
(-2,2),(2,0)
Answers
Answer:
Step-by-step explanation:
[tex]\frac{y2-y1}{x2-x1}[/tex]
[tex]\frac{0-2}{2-(-2)}[/tex]
[tex]\frac{-2}{4}[/tex]
[tex]\frac{-1}{2}[/tex]
is it
45cm²
40cm²
36 cm²
32cm²
Answers
Answer:40
Step-by-step explanation:
Answer:
the answer is 40cm^2
Step-by-step explanation:
i multiply them
4.83 x 8.18 = 39.5094
the estimate is 40
someone help me pleaseeee
Answers
Answer:
3 times 2 equal 5
Step-by-step explanation:
did the test and made 100
Help ASAP I will give u a lot of points
Answers
Write the following in standard form:
2x*3x^2
Answers
Answer
1296
Step-by-step explanation:
The explanation is 2x is written as 2*2 = 4
then 3x is written as 3*3 = 9 so
so you do 4*9 = 36 * 2 = 1296
Answer:
The answer to your problem is: 6x³
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Angela has 5 fewer quarters than twice the number of her dimes. If d represents
the number of dimes Angela has, which expression represents the total number of
Angela’s quarters and dimes
PLSSS SHOW YOUR WORK PLSSSSSS
Answers
Answer:
2d-5=Q ?
Step-by-step explanation:
Am I supposed to be representing quarters too? I think this should solve it though. Lmk if somethings wrong :)
I’ll mark you brainlist if you get the right answer please help!
Answers
Answer:
it would probably be 56
Step-by-step explanation:
Please help me find the y-intercept! :(
At midnight there were 5 inches of snow on the ground. Since then, snow has been falling at the rate of ½ inch per hour. Identify the y-intercept.
Answers
Explanation: y = Mx + b, m is your slope (1/2), b is your y-intercept (5 inches)
Equation would be y= (1/2)x + 5