Answer:
x=3 y=-1
Step-by-step explanation:
2x+3y=3;y=8−3x
Rewrite
y=−3x+8 2x+3y=3
Step: Solvey=−3x+8 for y:
y=−3x+8
Step: Substitute−3x+8foryin2x+3y=3:
2x+3y=3
2x+3(−3x+8)=3
−7x+24=3(Simplify both sides of the equation)
−7x+24+−24=3+−24(Add -24 to both sides)
−7x=−21
−7 - 7
x=3 (Divide both sides by -7)
x=3
Step: Substitute3forxiny=−3x+8:
y=−3x+8
y=(−3)(3)+8
y=−1(Simplify both sides of the equation)
this might be confusing but you gotta study :)
Can anyone help me please ??
Answer:
c equal 11.40 Step-by-step explanation: c is the hypotenuse so under square root 9^2 +7^2
Answer:
√130 ≈ 11.4
Step-by-step explanation:
Pythagorean Theorem: a² + b² = c²
9² + 7² = c²
130 = c²
√130 = √c²
√130 = 11.4
CORRECT ANSWER GETS BRAINLIEST!!
The heights of green bean starter plants at a nursery are Normally distributed with a mean of 40 centimeters. If a green bean plant that has a z-score of 1.67 has a height of 45 centimeters, then what is the standard deviation of this Normal distribution?
Round your answer to the nearest hundredths.
Answer:
2.99 IS THE CORRECT ANSWER
Step-by-step explanation:
Answer:
2.99
Step-by-step explanation:
edge 2023
what is 6 plus6^2÷3
Karina is showing her steps to solve the expression −26.7 ÷ one third. (1 point) In which step did Karina make an error? Step 1: −26.7 ÷one third Step 2: −26.7 ⋅ −3 Step 3: 80.1
Answer:
step 2
Step-by-step explanation:
step 2 is supposed to be (-26.7 multiply by 3) since the reciprocal of 1/3 is 3 and not -3. the answer should be -80.1 instead of 80.1
All the fudge machines at a chocolate factory work at the same rate. Six machines working simultaneously can complete a big order in 22 hours. How many hours would it take to fill the order if the number of working machines increased by factor of 4?
Answer:
5.5
hope this helped!!!!!
Given AXYZ = ARST.mZR=(6n+1). m _Y=108°, and m _Z=(91-4)', what is the value of n?
Answer:
A
Step-by-step explanation:
Given that the triangles are congruent then corresponding angles are congruent, thus
∠ S = ∠ Y = 108°
∠ T = ∠ Z = 9n - 4
Given ∠ R = 6n + 1
The sum of the 3 angles in Δ RST = 180°
Sum the 3 angles and equate to 180, that is
6n + 1 + 108 + 9n - 4 = 180 , simplify
15n + 105 = 180 ( subtract 105 from both sides )
15n = 75 ( divide both sides by 15 )
n = 5 → A
Rewrite
barrel
as a unit rate.
hour
Answer:
B. 2/5 barrel/hour
Step-by-step explanation:
cross multiply 1/5 and 2/1
=2/5
Write a rule for the following graph
Answer:
y = x + 1
Step-by-step explanation:
This is in slope intercept form. 1 is the point that you start at: (0, 1)
The slope is 1
y = 1x + 1 or
y = x + 1
If I scored a 16 out of 20 on my Reading test, what percentage did I score?
Answer: 80
Step-by-step explanation:
Answer: 80%
Step-by-step explanation:
16 divided by 20 = 0.8
Kaley and Tom both work at Publix as cashiers for $7.68 per hour. This week Kaley worked 5 more hours than Tom in overtime. Write an expression that represents the weeks' total wages for Kaley and Tom if h represents the number of hours Tom worked.
Answer:
7.68h
38.4 + 7.68h
Step-by-step explanation:
Earnings per hour = $7.68
This week Kaley worked 5 more hours than Tom in overtime
h = number of hours Tom worked.
Tom's total earnings for the week = earnings per hour × number of hours
= $7.68 × h
= 7.68h
Tom's total earnings for the week = 7.68h
Kayley's total earnings for the week = earnings per hour × number of hours
He works 5 hours more than Tom in overtime.
Tom = h
Kayley = 5 + h
Kayley's total earnings for the week = earnings per hour × number of hours
= (7.68) × (5 + h)
= 38.4 + 7.68h
Kayley's total earnings for the week =
38.4 + 7.68h
As a nurse in a maternity ward, you are tracking the weights of newborn babies. In the month of August, 360 babies are born, with a mean weight of 8.1 pounds. In the month of September, 291 babies are born, with a mean weight of 7.8 pounds.
what, approximately, is the mean weight for babies born during the two-month.?
7.83 pounds
7.93 pounds
7.95 pounds
7.97 pounds
7.99 pounds
Answer:
C
Step-by-step explanation:
HELPPP PWEASEEEEEEEEEEEE
Find a line parallel to
y = 2x + 3
that passes through
the point (0,6)
The answer should be in
the form of y = mx +b
m =
__, b =
(pls hurry)
Answer: m = 2; b = 6
y = mx + b
because the line parallel to y = 2x + 3
=> [tex]\left \{ {{m=2} \atop {b\neq 3}} \right.[/tex]
the line passes through the point (0,6) => 6 = b
Step-by-step explanation:
Psychological fact: people with bad handwriting tend to be smarter
Yes, they jolt things down causing bad handwriting
What is the slope of the line?
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
[tex]slope = - 3[/tex]
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
Let me know if you need explanation.
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
how can you tell when an equation in one variable has infinitely many solutions or no solution?
Answer:
A system has infinitely many solutions when it is consistent and the number of variables is more than the number of nonzero rows in the rref of the matrix. For example if the rref is ��has solution set (4-3z, 5+2z, z) where z can be any real number.
Can you tell me the answer plsssss
Answer:
19. 36 hours
20. 9 months
Step-by-step explanation:
To find these answers you would simply devide what is made by the goal. In #19 it would be 8/288÷36h
For #20 it would be 15÷135=9
Hopefully this helps.
Solve the division problem below.
The quotient is
Answer:
25/8
Step-by-step explanation:
Answer:
It's -6
Step-by-step explanation:
i got it right lol
The teacher-to-student ratio at a small school was 1:10. After 4 new teachers were added, the teacher-to-student ratio changed to 1:6. How many MORE students than teachers were at the school BEFORE the additions were made?
Answer:
10 more to every 1 teacher i believe
Step-by-step explanation:
how do you write a equation with (0,2) and (3,3) in slope-intercept form?
Answer:
m= 3-2/ 3-0= 1/3
Step-by-step explanation:
y2= 3 y1= 2
x2= 3 x1= 0
20% of a is 11. what is a
Answer:
2.2
Step-by-step explanation:
11*.20 = 2.2
So that is 20% on 11.
Hope this helps!
The swamp middle school basketball team purchased new equipment and uniforms. The total cost of the equipment was $245 and each uniform cost $21. If the total cost of their purchase was $518, how many uniforms did they buy? Create an equation for this situation.
Answer:
13 uniformsStep-by-step explanation:
Step one:
given data
total cost of equipments= $245
cost of each uniform=$21
Total purchase = $518
Step two:
The amount spent on uniform is total purchase minus the total cost of equipment
=518-245
=$273
Hence the total cost of the uniform is $273
if one will cost $21, then the number of uniforms they bought is
=273/21
=13 uniforms
Answer:
25 uniforms
Step-by-step explanation:
518/21= 24.6 round to 25
HELP PLS
Which expressions shows a correct way to set up the slope formula for the line that passes through the points (5, 0) and (6, -6)?
Answer:
-6-0
____
6-5
Step-by-step explanation:
its suppose to be a fraction hope it helps please mark brainliest
i need help please.
Answer:
Vertex point = (3, -2)
Step-by-step explanation:
Subtract: 3.8 - 2.923. Explain in your own words how you would solve this, in detail, from start to finish.
Given:
The expression is 3.8 - 2.923.
To find:
The subtraction.
Solution:
We have,
[tex]3.8-2.923[/tex]
It can be written as
[tex]3.800-2.923[/tex]
Now,
3 . 8 0 0
-2 . 9 2 3
-----------------
0 . 8 8 7
-----------------
So, [tex]3.800-2.923=0.887[/tex]
Therefore, the value of [tex]3.800-2.923[/tex] is 0.887.
can someone help me
Answer:
16.25
Step-by-step explanation:
6.5 + 5 = 32.5/2 = 16.25
Jethro is planting flowers in his garden. He wants the ratio of tulips to roses to be 2 to 1. Jethro wants to plant a total of 18 flowers. How many tulips should he plant?
Given:
Ratio of tulips to roses = 2:1
Total number of flowers = 18
To find:
The number of tulips.
Solution:
Let the number of tulips and roses are 2x and x respectively.
According to the question,
[tex]2x+x=18[/tex]
[tex]3x=18[/tex]
Divide both sides by 3.
[tex]x=\dfrac{18}{3}[/tex]
[tex]x=6[/tex]
Now,
Number of tulips [tex]=2(6)[/tex]
[tex]=12[/tex]
Therefore, the number of tulips is 12.
By coincidence, Kimberly's Paint Supplies sold equal quantities of two paint colors yesterday: yellow and blue. All yellow paint comes in 9-liter containers while blue paint is sold in 12-liter containers. What is the smallest amount of each paint color the store must have sold?
Answer:
36 liters
Step-by-step explanation:
We solve this question using the least common multiple method
Find and list multiples of the liter the blue paint comes in the liters the yellow paint comes in. We find the first common multiple is found. This is the least common multiple.
Multiples of 9:
9, 18, 27, 36, 45, 54
Multiples of 12:
12, 24, 36, 48, 60
Therefore,
LCM(9, 12) = 36
Hence, the smallest amount of each paint color the store must have sold is 36 liters
Jessica can walk 2 1/2 miles in 3/4 of an hour. What is her speed in miles per
hour?
Answer:
3 1/3 miles
Step-by-step explanation:
Find the unit rate. 2 1/2 is the numerator because distance is usually the numerator when it comes to unit rates. 3/4 is the denominator.
Can somebody plz answer all of them correct except number 7!!! Please thanks so much :) it’s my corrections :/
WILL MARK BRAINLIEST
Answer:
Number 8 is going to be 5/2
Number 9 is going to be 31/8
Number 10 is going to be 7/4
Number 11 is going to be 29/6
Number 12 is going to be 67/13
Step-by-step explanation:
Hope this helped