Find the solution to the system of equations using substitution.
3x = 8
3x + y = 15
Answers
Step-by-step explanation:
Step 1: Substitute 8 in the equation.
Step 2: Minus 8 from 15.
Related Questions
In a deli the ratio of ham subs sold to cheese subs sold in a day was 9:4. If 36 cheese subs were sold how many ham subs were sold?
Answers
Answer:
oolollololollolollo
Step-by-step explanation:
The number of ham subs sold is given by the proportion equation A = 81
What is Proportion?The proportion formula is used to depict if two ratios or fractions are equal. The proportion formula can be given as a: b::c : d = a/b = c/d where a and d are the extreme terms and b and c are the mean terms.
The proportional equation is given as y ∝ x
And , y = kx where k is the proportionality constant
It demonstrates the equality of the relationship between the expressions printed on the left and right sides.
Given data ,
Let the number of ham subs sold be represented as A
Now , the proportion will be
The ratio of ham subs sold to cheese subs sold = 9 : 4
And , the number of cheese subs sold = 36
Substituting the values in the equation , we get
number of ham subs sold A / number of cheese subs sold = 9 / 4
On simplifying the equation , we get
A / 36 = 9 / 4
Multiply by 36 on both sides of the equation , we get
A = ( 9 x 36 ) / 4
A = 9 x 9
A = 81 ham subs
Therefore , the value of A is 81 ham subs
Hence , the number of ham subs sold is 81
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What are the last 3 digits of 5 to the power of 2020?
Answers
Answer:625
Step-by-step explanation:
Find the slope and y-intercept of the graph. y=5x-3
Answers
Answer:
Step-by-step explanation:
y=mx+b
your m is the slope and your b is the y-intercept
so for y=5x-3 your slope would be 5 and your y-intercept would be -3
The equation y = 5x - 3 represents a line with a slope of 5 and a y-intercept of -3.
How to Find the Slope and the Y-intercept of a Graph?The equation of a graph can be expressed as y = mx + b, which is in the slope-intercept form. This means that:
m is the slope
b is the y-intercept of the graph.
The line described by the equation y = 5x - 3 has a slope of 5, meaning that as x increases by 1, y increases by 5. The y-intercept, represented by the constant term -3, indicates that the line intersects the y-axis at the point (0, -3).
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Which of the following statements is true about the graphs of f(x) = 1 and g(x) = f(5x)?
a)The graph of g(x) is less steep than the graph of f(x).
b)The graphs of g(x) and f(x) have the same slope.
c)The graphs of g(x) and f(x) have different y-intercepts.
d)The graph of g(x) is steeper than the graph of f(x).
Answers
Answer:
okay i will answer but i dont see the question
Step-by-step explanation:
what is the equation of the graphed line?
Answers
Answer:
y=mx+b
Step-by-step explanation:
you need to find the y intercept and the slope in order to write the equation in y intercept form slope is the change of u over the change in x
list three numbers that are larger than 20 but smaller than 50 and only have 2 factor
Answers
Answer:
23, 29, 31 I think. yeeeee good luck
PLS HELP ASAP I WILL GIVE BRAINLYEST...
20 Points...
Answers
Answer:
True
True
False
True
Step-by-step explanation:
simply the following equations
a. -5(-3x - 2y +1)
b. 6(x + 3y -5)
Answers
6x + 18y -30
Please hurry bb :) Please don't put the wrong answer if u don't know <3
Answers
799 and that’s less.
Select the correct graph of ABC
Giving brainliest
Answers
Answer:
I think it is B.
Step-by-step explanation:
pls make me brainliest and that is the only answer that matches each statement
Put x = 4 + y in slope-intercept form.
Answers
Answer:
y=x-4
Step-by-step explanation:
I graphed this out and got the equation.
!!30 points!!
The container that
holds the water for
the foorball team s 1/3
full. After pouring in 12
gallons of water, it is
7/9 full.
After pouring in 12
gallons of water, it is
7/9 full. How many
gallons can the
container hold?
Answers
Your answer would be 27 Gallons.
1. Place a value under the radical symbol to make the statement true.
Answers
Answer:
24
Step-by-step explanation:
2 cuberoot 6 is equal to
2^2 times 6 which is 24
3(3w-4)=(-20)
plz solve 4 w
Answers
Answer:
0.88888889
Step-by-step explanation:
Explanation: Solve using distributive property.
Step-by-step
1. 3 x 3w - (3)(4) = 9w - 12 = -20
2. 9w - 12 + 12 = -20 + 12
3. 9w/9 = -8/9
4. w = -8/9
Hope this helps! :)
Gavin read 6 books in 3 months. If he reads at a constant rate, how many books did he read each month? Give your answer as a whole number or a FRACTION in simplest form.
Answers
Answer:
2 books in one month
Step-by-step explanation:
Answer:
2 books per month .
Step-by-step explanation :
6 divided by 3 = 2
So 1 book per month = 2 , 2 books per month = 4 , 3 per month = 6 ( counting by 2 )
Hope that helped :)
WILL MARK BRAINLIEST SHOW ALL YOUR WORK
Answers
Answer:
y = 1/3x - 4
Step-by-step explanation:
the line crosses the y-axis at -4
To calculate the gradient of a straight line we choose two points on the line itself. From these two points we calculate: The difference in height (y co-ordinates) ÷ The difference in width (x co-ordinates)
If we take the points (9,-1) and (6,-2), we do:
-1-(-2) = 1
9-6=3
which gives 1/3
Answer:
y = 1/3x - 4
Y- intercept = -4
Slope = 1/3
Step-by-step explanation:
Y intercept is where the line intercepts/passes through the y axis
Slope is how many units it takes HORIZONTALLY (side to side) to go up ONE unit VERTICALLY (up down)
It took the line 3 horizontal units to go up 1 vertical unit. So you divide 1 by 3 which gives you 1/3
Francisco played a video game and earned 60 points for every coin he collected he collected 7 coins
how many points did he earn for the coins that he collected? there are no Onnline answers
Answers
Answer:
420 points
Step-by-step explanation:
multiply 7 by 60
Find the value of x in the triangle shown below
X=??
Answers
Answer:
109 degrees is the answer
Step-by-step explanation:
m<a+m<b+m<c=180 degrees
x+48+23=71
180-21=109 degrees for x.
Answer:
109
Step-by-step explanation:
So you do 48+23 which is 71 and then you do 180-71 which equals 109.
write and equation of the line that passes through the point (4, -2) and has a slope of -1/2.
Answers
Answer:
y
=
−
1
3
(
x
+
3
)
Step-by-step explanation:
The point-slope form of a linear equation is:
(
y
−
y
1
)
=
m
(
x
−
x
1
)
Where
(
x
1
,
y
1
)
is a point on the line and
m
is the slope.
Substituting the values from the point in the problem and the slope provided in the problem gives:
Answer:
y=-1/2x
Step-by-step explanation:
y-y1=m(x-x1)
y-(-2)=-1/2(x-4)
y+2=-1/2x+4/2
y+2=-1/2x+2
y=-1/2x+2-2
y=-1/2x
I will pick the brainiest answer! Thanks! :)
Answers
I hope this helps you. Search up triangle maker and it should be the third link and then take a picture of it and that is your answer for the first 3.
Please help, Ill give brain-list Rita's Blossoms sells roses in groups of 4. Across town, Kendall's Blooms sells roses in groups of 6. If a customer wants to buy the same number of roses from both vendors, what is the smallest number of roses the customer will have to buy from each vendor?
Answers
Answer:
can u mark me as brainliest pls pls pls pls pls pls pls pls pls pls pls
Step-by-step explanation:
HAVE A GREAT DAY!!!
A model of a tree is made using a scale of 1 inch = 25 feet. What is the height of the actual tree if the height of the model is 4 1/4 inches? Actual height of the tree is feet.
Answers
Answer: 4 1/4 inches = 106.25 ft
Step-by-step explanation:
1inch = 25 ft
4 inch = 100 ft
1/4 inch = 6.25 or 6 1/4
100+ 6.25= 106.25 ft
What is the slope?
Simplify your answer and write it as a proper fraction, improper fraction, or integer.
A)1/2
B)7
C)0/4
Answers
Answer:
A)1/2
Step-by-step explanation:
Whats 2+2 i need hellp plzzzzz
Answers
BTW can I have brainlest
Answer:
4 lol
Step-by-step explanation:
...............................
what is x
7x-21=4x-36
Answers
Answer:
x = -5
Step-by-step explanation:
Replacing one regular light bulb with a
compact fluorescent bulb will save 151.56
pounds of carbon dioxide per year. If you
replace 25 regular light bulbs, then how
many pounds of carbon dioxide will you save
per year?
Answers
Answer:
3789 pounds of carbon dioxide
multiply 151.56 by 25
Answer:
3789
Step-by-step explanation:
edge 2020
answer the question below, 100 points (and brainliest if it lets me, im desperate)
Answers
What is 325.623 rounded to the nearest tenth
Answers
If the number that comes before it is smaller than 5, you keep the number the same. If it’s larger than 5, then you boost it up one. For example, if it was 325.683, you’d round that to 325.7.
Hope that helps!
Answer: 325.6
Step-by-step explanation: 6 is in the tenth place and you don't round up the two
6 blue slabs have a mean weight of 7 kg. 3 yellow slabs have a mean weight of 5 kg. 1 grey slab has a mean weight of 9kg. work out the mean of 10 slabs
Answers
Answer: 6.6kg
Step-by-step explanation:
6 blue slabs have a mean weight of 7 kg. The total weight of the 6 blue slabs will be:
= 6 × 7kg
= 42 kg
3 yellow slabs have a mean weight of 5 kg. The total weight of the 3 yellow slabs will be:
= 3 × 5kg
= 15kg
1 grey slab has a mean weight of 9kg.
To get the mean of the 10 slabs, we add their total weights together and divide by 10. This will be:
= (42kg + 15kg + 9kg)/10
= 66kg/10
= 6.6kg
Based on the information given the mean of 10 slabs is 6.6 kg.
Formulate
(9+5×3+6×7)/10
Calculate the quotient
9+15+6×7/10
9+15+42/10
Calculate the sum or difference
24+42/10
66/10
Reduce the fraction
33/5
Hence:
Mean=6.6 kg
Inconclusion the mean of 10 slabs is 6.6 kg.
Learn more here: https://brainly.com/question/13964566
what property is 9+-9=0