Question 12 (2 points)
Solve the system of equations using subsititution.
y = 2x - 3
y + 5 = 3x
Answers
Answer:
(2,1)
x = 2
y = 1
Explanation:
Check the image
Answer:
(2,1)
Step-by-step explanation:
Since we already have an equation for y, all we need to do is plug that into y in the other equation.
y + 5 = 3x
(2x - 3) + 5 = 3x
2x - 3 + 5 = 3x
2x + 2 = 3x
2 = x
Now that we know y, we just need to plug the value of x into the equation.
y = 2(2) - 3
= 4 - 3
= 1
Related Questions
a radioactive materal has a half- life of 60 months. How much of a 1000g sample would remain after 42 months?
Answers
Answer:
100
Step-by-step explanation:
100
Manuel earns $7.25 per hour helping his neighbor. Last month he earned $348. Choose the correct equation and solution which determines the number of hours, h, Manuel worked.
Answers
Answer:
7.25h=348
Step-by-step explanation:
Five examples of how circles and their radii be used in other content areas
Answers
Thanks for the points but i hope you have a great day and find your answer
A 25-inch piece of steel is cut into three pieces so that the second piece is twice as long as the first piece, and the third piece is one inch more than five times the length of the first piece. Find the lengths of the pieces.
Answers
Answer:
3 inch 6 inch 16 inch 3+6+16 = 25
Step-by-step explanation:
First piesce = F
Second piece = 2F
third piece = 5F+1
F + (2F) + (5F+1) = 25
8F +1 = 25
subtract 1 om both sides
8F = 24
divide both sides by 8
F= 3
3X2= 6
3X5 +1 = 16
Complete the factorization of 3x2 – 5x + 2
.
Answers
Ditch Digging Problem Doug Upp can dig a ditch in 3 hours. His
brother Phil could dig the same ditch in 5 hours. How long would it take to dig the ditch if both work together?
Answers
Please help solve correctly. NO links or files. Correct answers only if not report. I will even give an additional 10 if correct.
Answers
Answer:
Im not sure if you have to provide an exact or estimated answer so here's both:
314.16 cm3 or 100pi
Answer:
100π
Step-by-step explanation:
[tex]V=\frac{pi r^{2} h}{3} \\ =\frac{pi*5^{2}*12 }{3} \\ =pi*5^{2} *4\\ =pi*25*4\\ =pi*100[/tex]
Sorry I had to write pi instead of π in the equation
PLEASEE HELP!! what is the perimeter of x?? HURRYYYY
Answers
HELP ME I WILL GIVE BRAINLY IF I WAS BORN SEPTEMBER 13th and I WAS 16 WHAT YEAR WAS I BORN
Answers
Answer:
2004
Step-by-step explanation:
if it was 2005 theyd be 15
Which inequalities are true? Select the four correct answers.
Much thanks to whoever helps!!
Answers
In a sequence of numbers, a4=9, a5=13, a6=17, a7=21, and a8=25.
Which equation can be used to find the nth term of the sequence, an?
an=9n+4
an=4n+9
an=7n−4
an=4n−7
Answers
Answer:
an=4n−7
Step-by-step explanation:
Just took the test hope this helps
according to the graph, what is the approximate average rate of change in the radius of the circle as the area increases from 3 square feet to 7 square feet?
Answers
Answer: the answer is 0.125 foot per square foot
Step-by-step explanation:
please answer the one that says PART B:) thanks (i’ll give brainliest)
Answers
Answer:
She is not correct
Step-by-step explanation:
When you add them together and divide by 1 7/8 (1.875), It does not come out evenly.
What is P(3 or divisor of 24)?
Answers
Answer:
P
(
sum
>
3
and
divisor of
24
)
=
7
18
Explanation:
Possible target sums that meet the given requirements:
XXX
{
4
,
6
,
8
,
12
}
Consider the possible die rolls that can give these sums:
sum
−−−−
xxx
first roll
−−−−−−−
second roll
−−−−−−−−−
4
1
3
2
2
3
1
6
1
5
2
4
3
3
4
2
5
1
8
2
6
3
5
4
4
5
3
6
2
12
−−
6
−
6
−
Giving a total of
14
out of a possible
36
combinations that meet the given requirements.
Step-by-step explanation:
An onion soup recipe calls for 3 2/3 cups of chopped onions. Katrina has already chopped 1 1/3 cups of onions. She wants to know how many more cups she needs to chop. Katrina still needs to chop cups of onion soup recipe calls for 3 2/3 cups of chopped onions. Katrina has already chopped 1 1/3 cups of onions. She wants to know how many more cups she needs to chop. Katrina still needs to chop cups of onions
Answers
Answer:
[tex]2\dfrac{1}{3}\ \text{cups}[/tex]
Step-by-step explanation:
Amount of chopped onions required = [tex]3\dfrac{2}{3}\ \text{cups}[/tex]
Amount of onions Katrina has already chopped = [tex]1\dfrac{1}{3}\ \text{cups}[/tex]
Amount of onions that are required to be chopped is given by
[tex]3\dfrac{2}{3}-1\dfrac{1}{3}\\ =\dfrac{11}{3}-\dfrac{4}{3}\\ =\dfrac{7}{3}\\ =2\dfrac{1}{3}\ \text{cups}[/tex]
Hence, the amount of onions that are required to be chopped is [tex]2\dfrac{1}{3}\ \text{cups}[/tex].
HELP DUE IN 10 MINS!
m∠B =??
Answers
Answer:
130°Step-by-step explanation:
Isosceles trapezoid has congruent angles at each base:
∠C ≅ ∠B, ∠D ≅ ∠Am∠B = m∠C = 130°6. Monthly Mortgage payments can be found using the formula Below:
M-PG2)(1+1)"
(1+12"-1
M = monthly payment
P = amount borrowed
r=annual interest rate
n = number of monthly payments
The Ranallo family just bought a house. They qualified for an annual interest rate of 5.2% and their monthly payment
was $800 for a 30 year mortgage. Algebraically determine the amount of their loan to buy the house.
Answers
Answer: your equation is poorly written/wrong hence I used the equation below
answer : $289156.63
Step-by-step explanation:
applying the formula to calculate monthly repayment of Mortgage
M = P [ r(1+r)^n / ( ( 1+r )^n ) -1 ) ] ----- ( 1 )
M = Total monthly payment = 800 * 12 * 30 = $ 288,000
P = ?
r = 5.2% / 12 = 0.4%
n = 30 * 12 = 360 months
Back to equation 1
P = M / [ r(1+r)^n / ( ( 1+r )^n ) -1 ) ]
= 288000 / [ 0.004 ( 1.004)^360 / (( 1.004)^360 ) - 1 ) ]
= 288,000 / -0.996 = - $289156.63 ( It has a negative value because It is a loan borrowed )
At a school picnic, 80 students ordered hot dogs and 63 hamburgers. Of those, 14 students ordered both a hot dog and hamburger. If there were 180 students at the picnic, how many students did not offer a hot dog or hamburger
Answers
Answer:
The answer should be 37
Step-by-step explanation:
what dose equal 8x3 it equals 24
Answers
Answer:
true
Step-by-step explanation:
3+3+3+3+3+3+3+3=24.
Mark me brainliest please ._.
Answer:
did u just answer ur own question
Step-by-step explanation:
?% of $10 = $9
What is the percentage
Answers
Answer:
90%
Step-by-step explanation:
there are 100 % if you multiplied 10 by 10 you get that 100 % so multiply 9 by 10 to get 90 and that is your answer
Answer:
$90%
Step-by-step explanation:
90/100 *10.
9*1
$9%
Help me with this problem please
Answers
Answer:
I'm not 100% sure, but I think the answer is 10 units squared.
Step-by-step explanation:
Find the area of each triangle, by multiplying each side, and dividing the answer in half. Add both of the triangles together, ending up as 6. Now we just find the area of the square. 2x2=4, add that to both of the triangles, and we're done. (2x2) ÷ 2 = 2 | (2x4) ÷ 2 = 4 | 2x2 = 4 | 4+4+2=10
Answer:
area=10 units^2
Step-by-step explanation:
[tex]a=\frac{(2+2+4)+(2)}{2} *2\\ =\frac{8+2}{2} *2\\ =\frac{10}{2} *2\\ =5*2\\ =10[/tex]
a=10 units^2
solve the system of equations x+y=6 and y+3x=4
Answers
Answer: x=-1, y=7. 1st eqaution=-1+7=6, 2nd eqaution=7+-3=4
A large pizza chain tracks how many pizzas each customer buys per order. The number of pizzas customers buy in any given order has a mean of 2.52.52, point, 5 pizzas and a standard deviation of 1.51.51, point, 5 pizzas.
Suppose that we take random samples of 777 orders from this population and calculate \bar{x}
x
ˉ
x, with, \bar, on top as the sample mean number of pizzas purchased per order. We can assume that the orders in each sample are independent.
Answers
Answer:
unknown; we don't have enough information to determine the shape.
Step-by-step explanation:
khan
Answer:
"Unknown; we don't have enough information to determine the shape."
Step-by-step explanation:
The shape of the sampling distribution is unknown because of the small sample size: the sample size is 7 - it should be at least 30.
What is the radius of this circle?
Answers
Answer:
5 cm
Step-by-step explanation:
Here, In given circle the radius is 5cm
-TheUnknownScientist
You have two decks of cards and you select a card from each deck. What is the probability to selecting a jack both times?
Answers
Answer:
The probability is 1/13 (1 to 13).
Step-by-step explanation:
In a card deck, there are 52 cards with 4 Jacks. If you simplified this probability, the answer would be 1 to 13.
4/52 = 1/13
In two card decks, there are 104 cards with 8 jacks. If you simplified this probability, the answer would also be 1 to 13.
8/104 = 1/13
what is the result of subtracting the second equation from the first? 8x-4y=-4 -3x+4y=5
Answers
Answer:
-9+11x-8y
Step-by-step explanation:
Please Please Please Please Help ASAP!!!!
Answers
Answer:
A
Step-by-step explanation:
What is 95% as a whole number
Answers
Answer:
95
Step-by-step explanation:
Answer:
95% of what? this question is incomplete.
10. Barbara puts $22 a week for 30 weeks in her savings account at the bank.
If she receives $4 interest for every $100 saved, how much money will
Barbara have after the 30 weeks?
$684
$660
B.
$636
$404
Answers
yoo can some on help im just a dud that suck a ixl
