Solve the system of linear equations by susbitution! Show your work please!!!
Answers
Answer:
x=5, y=4
Step-by-step explanation:
-3x+5y=5
y=x-1
substitute y
-3x+5(x-1)=5
-3x+5x-5=5
2x=10
x=5
y=x-1
y=5-1=4
Related Questions
1 1 point
Answer each of the following. Write your final answers in the blanks provided.
A building is 50 ft. high. At a distance away from the building, an architect observes that the angle of elevation to the top of the building is
28° How far is the observer from the base of the building? Round to the nearest foot.
Answers
Answer:
58
Step-by-step explanation:
57.5 round up. 58
Which expression is equivalent to -6(3x-2/3)
Answers
Answer:
-18x + 4
Step-by-step explanation:
Greta has two pet lizards draco and lizzy for every 11 crickets Greta feeds draco she always feeds lizzy 8 crickets last week Greta fed draco 77 crickets
Answers
greta fed lizzy 56 crickets
Answer:
She feeds Lizzy 56 crickets when she feeds Draco 77.
Step-by-step explanation:
Lets put it as an equality:
[tex]\frac{11}{8}[/tex] = [tex]\frac{77}{x}[/tex]
We want to solve for x. We can do so by finding how much larger the second fraction is than the first. In this case, 77 is 7 times larger than 11 (77/11=7), so we know that x must also be 7 times larger than 8 (because the fractions are proportional).
Since x is 7 times larger than 8, we can use 7 times 8 to find the value.
7 times 8 is 56
56 crickets for Lizzy!
Hope this helps and makes sense!
Try the following puzzle:
A bat and ball cost $1.10.
The bat costs one dollar more than the ball.
How much does the ball cost?
Answers
Answer:
10 cents
Step-by-step explanation:
the bat cost 1 dollar so subtract 1 dollar from 1.10 and you are left with .10 or 10 cents
Answer:
the ball costs $0.05
Step-by-step explanation:
if the total is $1.10, and the bat is $1 more than the ball, you do
1+2x=1.10. do the algebra, and you get 0.05. hope this helps.
Daniel works for 3 hours one day he gets paid $6 an hour.
Answers
1. The number of triangles to the total number of shapes
Answers
Answer:
count the number of triangles and then the total number of shapes so if there are 7 triangles and 21 shapes total the answer would be 7-21
Step-by-step explanation:
The ratio of the triangles to the total number of shapes will be 4/9. Then the correct option is D.
What are ratio and proportion?A ratio is a group of sequentially ordered numbers a and b expressed as a/b, where b is never equal to zero. When two objects are equal, a statement is said to be proportional.
The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.
The total number of shapes is 9. And the number of triangles is 4.
Then the ratio of the triangles to the total number of shapes will be given as,
Ratio = 4 / 9
The ratio of the triangles to the total number of shapes will be 4/9. Then the correct option is D.
More about the ratio and the proportion link is given below.
https://brainly.com/question/14335762
#SPJ5
The complete question is attached below.
Which of the following rational functions is graphed below?
Answers
Answer:
d
Step-by-step explanation:
trust me
The speed limit on a highway is 70 miles per hour. About how fast is this in miles per minute
PLEASE SOON!!
Answers
Answer:
In the case of 70 mph, time would be 105/70 or 1.5 hours (90 minutes).
a cupcake recipe calls for 4 cups of flour into cups of sugar. Angelica only has three cups of flour. How much sugar would she need to keep the ratio equivalent if she uses all the flowers she has?
Answers
Answer:
she would need like 2cups of sugar
8t=−32
Help a sister out
Answers
Answer:
t=-4
Step-by-step explanation:
Answer:
t = -4
Step-by-step explanation:
divide each term by 8 and simplify
Joey is building a doghouse. He measures the lengths of two sides and the hypotenuse to make sure the boards create a right triangle. Which of the measurements below could be used to create the right triangle?
Answers
Answer:
hv iub;k
Step-by-step explanation:
hg bjlh lj
What Percent of 25 is 10 ?
Answers
Answer:
40
Step-by-step explanation:
Answer:
40% (see below)
Step-by-step explanation:
First, make a ratio to simplify your situation:
Think about it like this:
If 25 is 100%, and the question is asking me for 10, which is x%, then what is x%?
Here's what I'm talking about:
10 x%
------ = --------
25 100%
Now, just cross multiply and simplify:
1000 = 25x
40 = x
x = 40
To check your answer, you can multiply 25 by 0.4 (the decimal form of 40%) to see if it worked because 40% of 25 is 10:
25 (0.4)
10
Mr. Sampson wants to ship a birthday gift to his son in the navy. To meet shipping requirements at the Local U
Pack It We Ship it Store, the perimeter of the rectangular-shaped gift box must be less than 30 inches. Write
and graph an inequality to describe this situation.
X= length
Y= width
Answers
Answer:
Step-by-step explanation:
If length of the box = x
And width of the box = y
Then perimeter of the box = 2(length + width)
= 2(x + y)
Since, perimeter of the box is less than 30 inches.
2(x + y) < 30
x + y < 15
y < -x + 15
Since, this inequality has a sign of less than, line on the graph will be a dotted line.
y intercept of the dotted line y = 15 (by x = 0)
x intercept of the line x = 15 (by y = 0)
Constraints for the graph will be,
x > 0
y > 0
Now we can plot the dotted line by joining the x and y intercepts.
In this graph common region under the dotted line between x axis and y axis will be the solution area of the given inequality.
what is the simplified form of √45
A) √5
B) √9•5
C) 3√5
D)5√3
Answers
Suzanne finances $315,000 with a 15/4 balloon mortgage at 3.75%, How much will she pay for principal and interest over the life of the loan?
$358,189.67
$357,416.36
$355,775,49
S356,638.32
Answers
Answer:
Step-by-step explanation:
Given that :
what is
$1,000,000 x 1/3=
Answers
Answer:
333333.3
Step-by-step explanation:
The exact answer is
333333.333333
:)
What is this? Someone please help me
Answers
Answer and Step-by-step explanation:
Haven't done this in a while, so here we go:
The rule (I'm not really sure) would have to be negative number and negative number.
This means that:
(4, 0) would become (-4, 0) A'
(6, -2) becomes (-6, 2) B'
(8, -7) becomes (-8, 7) C'
and (0, -5) becomes (0, 5) D'
#teamtrees #WAP (Water And Plant)
Solve each equation.
2x=52x=5
answer asap plz
Answers
Answer:
The correct answer for this problem is 55
write an absolute value inequality for each graph explain pls?
Answers
Answer:
Step-by-step explanation:
(n) less than or equat to
Solve the equation.
s/2 = 2.5
A
12.5
B
5
C
50
D
10
Answers
Answer:
B
Step-by-step explanation:
PLEASE HELP!!!!!!!!!!
Answers
Answer:
3
Step-by-step explanation:
give your answer as mixed fraction and simplest from .
Answers
Then add the numerators.
2 2/6 + 3 2/6 = 5 4/6
Simplify the fraction
5 2/3
PLS HELP ME ASAP I DONT HAVE TIME. IT ALSO DETECTS IF ITs RIGHT OR WRONG.
Answers
Answer:gay
Step-by-step explanation:
Answer:
k=4.5
Step-by-step explanation:
if you multiply 4.5 by x your result will be y
ex: 4x4.5=18
4=x and 18=y
can i please get some help asap
Answers
please help need help djhdhdhdj
Answers
Answer:
SAS
Step-by-step explanation:
PLZ ANSWER QUICK IT WILL HELP A LOT!
Answers
Answer: A
Step-by-step explanation: all answer choices have the negative sign for the x-value
Answer:
Correct answer: Choice a.
Step-by-step explanation:
Reflections In The Coordinate Plane
Reflect over the x-axis:
When we reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is mapped to its opposite (its sign is changed).
The reflection of the point (x,y) across the x-axis is the point (x,-y).
Reflect over the y-axis:
When reflecting a point across the y-axis, the y-coordinate remains the same, but the x-coordinate is mapped to its opposite (its sign is changed).
The reflection of the point (x,y) across the y-axis is the point (-x,y).
Note that the original triangle drawn by Jack and the image triangle have the same y-coordinate, but the inverse of the x-coordinate. This matches the definition of a reflection over the y-axis.
Correct answer: Choice a.
s=ut+ 1/2 at²
u=10 a= -2 t= 1/2
work out the value of s
Answers
s=5+(-1)(1/4)
s=5-(1/4)
s=4 and 3/4 or 19/4
Will give 15 point
Easy math please explain your work
Answers
Answer:
Answer is 154
Step-by-step explanation:
2. Simplify the expression by combining like terms. 3y+4y+6
A. 13y
B.7y+6
C.12y+6
D.18y
Answers
Add 3y and 4y together since it’s both y
Answer:
B
Step-by-step explanation:
Y is the like term here, so add them together: 3y+4y=7y.
So now you have 7y+6
If f (x) = 4x-3, what is f (x)"?
Answers
Answer:
4x-3
Step-by-step explanation:
F(x) is a function group. In this scenario, f(x) = 4x-3 where x is equal to x.
