Step-by-step explanation:
system of Linear Equations 2 variables
hamburger = x
fries = y
Stefan
3x + 4y = $26.5
Nancy
4x + 2y = $29.5
elimination
3x + 4y = $26.5 | ×1 |
4x + 2y = $29.5 | ×2 | -
3x + 4y = $26.5
8x + 4y = $59. -
-5x = $-32,5
x = $-32,5 ÷ -5
x = hamburger = $6.50
I hope this help
Solve the equation for X. Show all work.
6(-3x - 4) = - 18x + 24
PLEASE HELP ME WHAT IS THE ANWSER
Answer:
c is the same angle as a
b and d are the same as the other
and together the are what's left from 360° after a and c got their share
so
360 -98 -98 = b + d
makes
164 = b + d
since they are of equal value, just decide 164 by 2 and you got b and d at once
pls brainliest
Answer:
Vertical Angles: a and c , d and b
m<b= 82⁰ , m<c=98⁰ , m<d=82⁰
Adjacent Angles: a and b , b and c , c and d ,d and a
correct me if im wrong
what are the answer to this question
Answer: t=-3h+25
Step-by-step explanation:
t=-3h+25
25 degrees is a constant-- it never changes, no matter how many hours goes by. So, you don't multiply a variable with it.
The temperature drops every 3 hours-- this is not constant, since it's dependent on the number of hours that passes. So, use a variable here. Since the temperature drops every three hours, it's -3, and not 3.
Answer:
[tex]t=-3h+25[/tex]
Step-by-step explanation:
If we know that when [tex]h=0[/tex], [tex]t=25[/tex], then we can use a direct proportion equation ([tex]x=ky[/tex]). The temperature decreases every hour by 3 degrees. However, we know that before any temperature drop, the temperature was 25 degrees. All together, this gives us [tex]t=-3h+25[/tex], where [tex]-3h[/tex] is the temperature drop each hour, and [tex]25[/tex] is the starting temperature. Hope that explained things :)
Can someone help me with this math problem ?? Pls it’s for my final !
-
A 525ft cable runs from the top of an antena to the ground. The angle of elevation made by the ground to the top of an antena 25°
How tall is the antena ??
Answer:
221.87 feet
Step-by-step explanation:
Given that,
A 525 ft cable runs from the top of an antenna to the ground.
The angle of elevation made by the ground to the top of an antena 25°
We need to find the height of the antenna.
Using trigonometry,
Hypotenuse, H = 525 ft
θ = 25°
So,
[tex]\sin\theta=\dfrac{P}{H}\\\\P=H\sin\theta\\\\P=525\times \sin(25)\\\\P=221.87\ ft[/tex]
So, the height of the antenna is equal to 221.87 feet.
Can someone please help me with this?
Answer:
y = x
Step-by-step explanation:
i took two points which are very close to the trend line - (3,3) and (5,5) - to get the slope
the slope is 2/2 or 1 and the y-intercept is zero
this means the trend line is 'y = x'
Help me please!!! I really need it!
Answer: The value of x can be either 5 or 10.
Step-by-step explanation:
We are given:
Total profit, P = $5600
The given equation follows:
⇒ P = 600 + 1500x - 100x²
Putting value of P in above equation, we get:
⇒ -100x² + 1500x + 600 = 5600
⇒ -100x² + 1500x - 5000 = 0
⇒ 100x² - 1500x + 5000 = 0
Solving this equation by middle term split, we get:
⇒ 100(x² - 15x + 50) = 0
⇒ (x² - 10x - 5x + 50) = 0
⇒ x(x - 10) - 5(x -10) = 0
⇒ (x - 10)(x - 5) = 0
⇒ x = 10, 5
Hence, the value of x can be either 5 or 10.
What points are [tex]\sqrt{45}[/tex] units away from (-3, 1)? Select all that apply.
1. (0,7)
2. (-9,4)
3. (3,-2)
3. (-6,-5)
For each 7 mm of coloured fabric Gavyn uses to make his curtains, he also uses 1 cm of white
fabric. Express the amount of white fabric to coloured fabric as a ratio in its simplest form.
Answer:
7mm:10mm
Step-by-step explanation:
1cm =10mm
so 7:10
What is the answer for K ?
10/3 = k/9
10 x 9 = 3 x k
90 = 3 k
k = 90/3
k = 30
A student must study for 20 to 30 hours a week to maintain their grade point average. If the
student wants to study daily, how many hours per day is this (in interval notation)?
0 (20,30)
[20/7,30/7]
[13,23]
[27,37]
How can you apply the concept of area and perimeter in your everyday life?
Place these lengths in order of size with the smallest first:
4.5m, 4.93cm, 475.9mm, 47.3m
Answer:
4.93 cm 475.9 mm 4.5 m 47.3 m
Step-by-step explanation:
mmmmmmmmmmmmmmmmmmmmmmm
Marking brainliest
I’m getting a belly piercing soon and this guy asked this question but I’m not sure what he means? Someone help
Answer:
navel piercing.
Or
belly button piercing
Or
an umbilical dip piercing
What is the length of the unknown side of the right triangle 7,24,25,31
Answer: 25
Step-by-step explanation:
Please help me out!!
Answer:
456
Step-by-step explanation:...
Martha’s biweekly gross pay is $1,000. Her deductions make up 23% of her gross pay. How much is deducted from her pay for a full calendar year?
$4,600
$5,980
$7,020
$9,420
ALL GIVE BRAINLY
Answer:
$5,980
Step-by-step explanation:
23% of $1,000 = $230
so, Martha's deductions for a full calendar year =
52/2 × $230 = $5,980
2. A doctor created a scatterplot to show the relationship of heart rate to
blood pressure for some of her patients. The table below is the
data that the doctor collected.
Heart
Blood
Rate
Pressure
80
140
90
155
98
160
С
110
171
Which of these BEST describes the correlation for the data?
Answer:
Step-by-step explanation:
helpppp meee please this is due in 20 mins
write an equation then find the angle measure for A. 25 points and brainliest.
Answer:
A
Step-by-step explanation:
The sum of the 3 angles in a triangle = 180°
Sum the 3 angles and equate to 180
4 + 3x + 3x + 14 + 90 = 180 , simplify left side
108 + 6x = 180 ( subtract 108 from both sides )
6x = 72 ( divide both sides by 6 )
x = 12
Then
∠ A = 4 + 3x = 4 + 3(12) = 4 + 36 = 40° → A
pls help i am really struggling at this it is a vector question
Answer:
Step-by-step explanation:
PQ = q-p
PQ = q-p, therefore PS = (2/3)(q-p)
OS = p + (2/3)(q-p) = (2q+p)/3
OR = q + p/2
To make new vectors, chain vectors, follow arrow directions.
The sum is the line joining the beginning and end points.
If you need to reverse the direction of a vector, simply put a negative sign.
please help asap! i will mark brainliest!!!!!!
Answer:
it is A
Step-by-step explanation:
given that ABCD is a rhombus, what is the value of x?
answers
a.) 28
b.) 56
c.) 48.5
d.) 18
e.) 36
f.) Cannot be determined
Answer:
d
Step-by-step explanation:
We know that diagonals bisect angles of a rhombus, meaning that they split the angles of two equal parts, that opposite angles are equal, and that the angles of a quadrilateral, such as a rhombus, add up to 360 degrees.
Looking at the drawing I uploaded, and taking into account that diagonals bisect angles of a rhombus, we can say that angle x = y and z = 5x-18
Next, given that opposite angles are equal, we can say that angle B = angle D and angle A = angle C. Therefore,
A+B+C+D= 360 (as the angles of a quadrilateral add up to 360)
A + B + A + B = 360 (plugging in A for C and B for D)
2 ( A + B) = 360
A + B = 180
x + y + z + 5x - 18 = 180 (plugging x+y in for A, and z+5x-18 in for B, as x and y make up A and z and 5x-18 make up B)
x+x+5x-18+5x-18 = 180 (because x=y and z=5x-18)
2(x+5x-18) = 180
divide both sides by 2
x+5x-18=90
6x-18=90
add 18 to both sides
6x=108
divide both sides by 6
x = 18
Question 10 What best describes Theoretical Probability? A.) Flipping a coin once to see if it's a heads or tails. B.) Using mathematical reasoning to determine how many heads, without flipping. C.) Picking a random number for the heads you will see. D.) Flipping a coin 100 times and seeing the number of times it is heads.
Answer:
B)
Step-by-step explanation:
These are the means and standard deviations for samples of prices from two different brands of shoes. Brand A Brand B Mean: $50 Mean: $40 Standard deviation: $5 Standard deviation: $8
Select the two true statements.
A. Brand A has a higher average price than brand B.
B. Brand A has a lower average price than brand B.
C. Brand A's prices are less spread out than brand B's prices.
D Brand A's prices are more enread out than brad pie
Answer:
A and C
Step-by-step explanation:
just took the test
Help
Asap please!!!!
Answer:
The slope is 3/4
Step-by-step explanation: slope= rise/run. from point (-2,0) to point (2,3), it rises 3 units and runs 4 units to the right. :)
Which polynomial is factored completely?
Answer: fourth answer
Step-by-step explanation:
you cant factor it
What's the area please
Answer:
its area is square (11+17+4)
I guess this may help you
Answer:
222
Step-by-step explanation:
11* 17 = 187
4*5=20
5*6/2=15
187+20+15=222
The value of r is constant:Please choose the correct answer from the following choices, and then select the submit answer button.early in exponential growth curves and then increases with each generation.in logistic growth until carrying capacity is reached.only in logistic growth.only in exponential growth.for both logistic and exponential growth.
Answer:
Step-by-step explanation:
help pls i need help now
Answer:
866
Step-by-step explanation:
866
4
x______
3464
express fractions below having equal denominators: a) 2/5, 7/10, 9/40. b) 17/25, 23/40, 67/120
Answer:
Step-by-step explanation:
a) 5 = 5
10 = 2 * 5
40 = 2 * 2 * 2 *5
Least common denominator = 2*2*2*5=40
Now find equal fractions with denominator 40
[tex]\frac{2}{5}=\frac{2*8}{5*8}=\frac{16}{40}\\\\\frac{7}{10}=\frac{7*4}{10*4}=\frac{28}{40}\\\\\frac{9}{40}[/tex]
Fractions with equal denominators:
[tex]\frac{16}{40} ; \frac{28}{40} ; \frac{9}{40}[/tex]
b) 25 = 5* 5
40 = 2 * 2 * 2 * 5
120 = 2 * 2 * 2 * 3 * 5
Least common denominator = 8*25*3=600
[tex]\frac{17}{25}=\frac{17*24}{25*24}=\frac{408}{600}\\\\\frac{23}{40}=\frac{23*15}{40*15}=\frac{345}{600}\\\\\frac{67}{120}=\frac{67*5}{120*5}=\frac{335}{600}\\\\[/tex]
