Answer:
Michael has $15 and wants to buy a combination of school lunches to feed at least three classmates. A sandwich costs $2, and hot lunch costs $3.
This system of inequalities models the scenario:
2x + 3y < or equal to sign 15
x + y > or equal to sign 3
I was not in class when we did this and i have no idea what the answer is so if someone could help that would be wonderful
Answer:
12 < x < 13
Step-by-step explanation:
Pythagorean Theorem: a^2 + b^2 = c^2
a is 6, b is 11, c is x.
We have to first replace the items in the Theorem, do the exponents, then add.
1) 6^2 + 11^2 = x^2
2) 36 + 121 = x^2
3) 157 = x^2
To finally solve it we must square root everything
4) sqrt(157) = sqrt(x^2)
5) x = 12.52
So x has to be between 12 and 13
Find the value of × in each of the following
a)5+1=11
b) 2x-3=2
Step-by-step explanation:
a,it doesn't have variable
b,2x-3=2
2x=2+3
2x=5
2x/2=5/2
x=5/2
help plsssssssssssss
Answer:
27+72x
Step-by-step explanation:
ous5ourskhrskysr
Graph 3x-4y=-12 using intercepts.
Will mark brainliest if right
Answer:
See the attached file
There is also this app "desmos" it helps in this just put the equation in there
Answer:
Read below
Step-by-step explanation:
Slope-intercept form: y = mx + b
where:
m is the slopeb is the y-intercept (when x = 0)1. Rewrite 3x - 4y = -12 into slope-intercept form:
3x - 4y = -12 [subtract 3x from both sides]
3x - 3x - 4y = -12 - 3x
-4y = -3x - 12 [divide both sides by -4]
-4y ÷ -4 = -3x - 12 ÷ -4
[tex]\implies y =\dfrac{3}{4}x + 3[/tex]
Note: with the slope-intercept form, we can quickly see that the y-intercept is (0, 3)
2. Randomly choose x-values that can help you graph the equation:
When x = -8:
[tex]y =\dfrac{3}{4}x + 3\\\\y =\dfrac{3}{4}(-8) + 3\\\\y =-\dfrac{24}{4} + 3\\\\y =-6 + 3\\\\\implies y=-3[/tex]
coordinate: (-8, -3)
When x = -4:
[tex]y =\dfrac{3}{4}x + 3\\\\y =\dfrac{3}{4}(-4) + 3\\\\y =-\dfrac{12}{4} + 3\\\\y =-3 + 3\\\\\implies y=0[/tex]
coordinate: (-4, 0)
When x = 8:
[tex]y =\dfrac{3}{4}x + 3\\\\y =\dfrac{3}{4}(8) + 3\\\\y =\dfrac{24}{4} + 3\\\\y =6 + 3\\\\\implies y=9[/tex]
coordinate: (8, 9)
Graph these coordinates and draw a linear (straight) line through them.
Find the area of following figures
Answer:
AB=8
CD=7
EF=2.4
FA=2
SOLN
ab+cd+ef+fa
8+7+2.4+2
19.4
Herman is drawing a rectangle with a base that is
four times the length of its height. The perimeter of
his rectangle is 60 feet. How long are the base and
height of Herman's Rectangle?
heightAnswer:
12
Step-by-step explanation:
(x representing the smallest size)
x + 4x = 60
5x = 60
x = 12
the height is 12
to confirm:
12 x 4 = 48
48 + 12 = 60
Translate the sentence into an equation.
Six less than the product of 4 and a number equals 2 .
Use the variable c for the unknown number.
Answer:
(4xc)-6=2 then c=2
Step-by-step explanation:
because we knew that we had to do 6+2=8 so then 8 divided by 4 = 2 so the answer would be 2!
Answer:
(4c) - 6 = 2
4c - 6 = 2
c = 2
Both equations will work.
Step-by-step explanation:
"The product of 4 and a number" is the same as 4 times that number.
Since the missing number is to be said as c, the correct term for this is 4c
6 less than (4c) is the same as (4c) - 6
We have the left-hand-side of the equation as (4c) - 6
The right-hand side is 2
(4c) - 6 = 2or4c - 6 = 2Now, we have to solve for c.
-Chetan K
SOLVE & SHOW YOUR WORK !!!!
Answer:
Step-by-step explanation:
You have to assume that the triangles are congruent or at least similar. If they are not, the question isn't possible.
If that is so, then <M and <X are equal.
You can find < M by stating that 20 degrees.
That's because <L + <M + <N = 180 degrees. All triangles have 180 degrees.
<L = 70 Given
<N= 90 So marked.
70 + <M + 90 = 180
<M = 20 degrees.
<X = <M
<X = 20
where do you get .28 from ?
Answer:
Percentage.Fraction.Step-by-step explanation:
0.28 is like a percentage.
If so, then you can use 2 examples:
0.28 * 32.28% of 32.The most simple way of getting it is fractions.
2 examples:
28/10028/100 * 32.3p^2+2p-8 factor the common factor out of the expression?
Answer:
3p²+2p-8
3p²+6p-4p-8
3p(p+2)-4(p+2)
= (3p-4)(p+2)
Josh's desk is 36 inches tall. When
he meaured the desk using a yard
stick, it was 1 yard tall. Why did the
number decrease when he
measured with the yard stick?
How do you evaluate 35/a. When a =7
Answer:
5
Step-by-step explanation:
[tex]35/a[/tex], when a = 7
Substitute
[tex]35/7[/tex] [tex]=5[/tex]
Answer:
5
Step-by-step explanation:
You substitute 7 for a in the equation.
35/a ——> 35/7
Evaluate it and your answe is 5.
I hope it helps! Have a great day!
Lilac~
PLEASE HELP ME QUICKKK, FIRST CORRECT PERSON GETS BRAINLIEST
Answer:
The Answer is C 165$
Step-by-step explanation:
Final price = original price x ((100 - % off) / 100)
final price = 220 x ((100 - 0.25) / 100)
factorize 35-12x + x^2
Answer:
[tex]35-x(12-x)[/tex]
Step-by-step explanation:
[tex]35-12x+x^2=35-(12x-x^2)[/tex]
Factor out x from the parenthesis
[tex]35-x(12-x)[/tex]
Hope this helps :)
Have a nice day!
Answer:
[tex](x - 7)(x - 5[/tex]
My solvation is on the picture, Hope it helps and brainliest if correct.
PLEASE HELP ME PLEASE ITS DUE TODAY
$3.13 is the answer like it please thanks
Someone please help me I have to turn this in tomorrow
An airplane flies
170 miles in 2 hours
42 minutes. What is
its average speed in
miles per hour?
Answer:
The average speed is 62.96mph. Hope this helps! :)
Step-by-step explanation:
could you write 378972 with commas
Yes, It can be written with commas
It will be,
[tex]378 , 972[/tex]
Remeber that: Comma is always put after interval of three numbers. First three, Then three and so on...Write as a mathematical expression: The product of 5 and x, increased by 3
Answer:
[tex]5x + 3[/tex]
Step-by-step explanation:
(5 × x) - Product of 5 and x
=5x
increased by 3
5x +3
The graph below shows y as a function of x.
What is the relationship between x and $y$ in the graph?
A
As x increases, y increases.
B
As x increases, y decreases.
C
As x increases, y increases, then y decreases, then y increases again.
D
As x increases, y decreases, then y increases, then y decreases again.
Answer:
As x increases, y increases, then y decreases, then y increases again.
Step-by-step explanation:
The relationship between x and y in the graph is as x increases, y increases, then y decreases, then y increases again.
Option C is the correct answer.
What are coordinates in a graph?The coordinates in a graph indicate the location of a point with respect to the x-axis and y-axis.
The coordinates in a graph show the relationship between the information plotted on the given x-axis and y-axis.
We have,
The graph has the following coordinates.
(0, 0), (3, 3), (4, 0), (5, -4), and (9, 0)
Now,
We see that,
From (0, 0) to (3, 3),
y increases as x increases.
And,
From (3, 3) to (4, 0).
y decreases as x increases.
And,
From (4, 0) to (5, -4).
y decreases as x increases.
And,
From (5, -4) to (9, 0).
y increases as x increases.
Thus,
The relationship between x and y in the graph is as x increases, y increases, then y decreases, then y increases again.
Learn more about coordinates here:
https://brainly.com/question/13118993
#SPJ2
Please help will give 50points
Answer:
a=10
Step-by-step explanation:
Using Pythagoras theorem
[tex] {(a + 2)}^{2} + {( a- 5)}^{2} = {(a + 3)}^{2} [/tex]
[tex] {a}^{2} + 4a + 4 + {a}^{2} - 10a + 25 = {a}^{2} + 6a + 9[/tex]
simplify:
[tex] {a}^{2} - 12a + 20 = 0[/tex]
(a-2)(a-10)=0
hence a= 2 or a=10 however we must reject 2 as the lengths of the triangle cannot be negative eg. the side for a-5 will be equivalent to -3 cm which is not possible for lengths to become negative
A roll of breakfast sausage weighing 4/5:of a pound is cut into 3 patties of the same size. What is the weight of each patty?
NO LINKS!!!
Solution:
Note that:
4x/5 ÷ 3 = 1 pattySolve for x to find the weight of each patty.
4/5 ÷ 3 = Weight of 1 patty=> 4/5 x 1/3 = 1 patty=> 4/15 = 1 pattyThe weight of a patty is 4/15 of a pound.
Answer:
4/15
Step-by-step explanation:
Hope this helps! Sorry if I am wrong.
Which sides can make a triangle the question is in the photo
Answer: I believe it is 10cm 9cm 9cm
Step-by-step explanation:
Triangle Inequality Theorem, which states that the sum of two side lengths of a triangle is always greater than the third side
PLEASE HELP ME I think i know the answer but im not sure
Answer:
2537
Step-by-step explanation:
3/5 of 4,283.30 = 2569.98
2569.98 - 19.99 = 2549.99
2549.99 - 12.99 = 2537
Solve ? (0.7 + y) times 8.7
8.7(0.7+y)
expand
6.09+8.7y
What is 11 4/8 - 5 6/8
Answer:
= 114/8-56/8
= 14.25-56/8
= 14.25-7
= 7.25
Step-by-step explanation:
This is Bedmas so remember brackets, exponents, addition, multiplication and subtraction.
I hope this helps!!
Answer:
46/8 is the answer
hope it help
6. A car traveled 30 kilometers for 2 hours, what is its speed? A. 15.0km/h B. 28.0km/h C. 30.0km/h C. 60.Okm/h
answer :b
Answer:
A. 15.0km/h
Step-by-step explanation:
30km/2hr = 15km/hr
Answer:
A. 15.0km/H hope this helps
Four times the number of mangoes Mark picked equals the number Jordan picked for a week. If Jordan picked 20 mangoes each day, how many mangoes did Mark pick?
Answer:
5
Step-by-step explanation:
The equation looks like 4x=20
Divide each side by 4 to get x=5
Thus x+5
A field is a rectangle with a perimeter of 1110 feet. The length is 100 feet mora than the width. Find the width and length of the rectangular field
Answer:
W: 455 ft
L :.655 ft
Step-by-step explanation:
I did the math if it's wrong I'm so sorry but I'm 99.9% sure it's right.
~giving brainliest for answering this one question~
Answer: 3 minutes 50.51 seconds
Step-by-step explanation:
10/100 of a second = 0.1 second
So the American's time = 3 minutes 50.61 second - 0.1 second
= 3 minutes 50.51 seconds