On a recent day, 8 euros were worth $9 and 24 euros were worth $27. Enter an equation of the form y = kx to show the relationship between the number of euros and the value in dollars. Let y be the value in dollars and x be the number of euros.
Answer:
y=1.125x
Step-by-step explanation:
9/8 is the ratio
so, I would do 9/8 which is 1.125. so, one euro is worth 1.125 dollar
y(dollars)=1.125x(euros)
TEST
27 dollars=1.125 • 24
done
What is equivalent to -(-2)
23.82600 in standard form
Answer:
23.826
Step-by-step explanation:
To write a linear expression in standard form, rearrange the terms in alphabetical order.
At a restaurant 28 guests ordered a dessert, and 42 quests did not order a dessert. What
percentage of the guests at the restaurant ordered a dessert?
What is the product of this multiplication?
Answer:
69
Step-by-step explanation:
just cause
If 11 + 11 = 22 and 10 + 12 = 22 then which of the following is true?
A. 11 + 10 = 11 + 12
B. 11 + 11 = 10 + 12
C. 11 + 11 = 12 + 12
D. 10 + 11 = 12 + 13
show your work
Answer:
B. 11+11=10+12
Step-by-step explanation:
11+11 is 22
And 10+12 is 22
So the statement is true because both sides are equal
PLEASE HELP I KNOW ITS EASY BUT I FORGOT!!!! PLEASE HELP!! Write -3/8 as a decimal.
Answer:
-0.375
Step-by-step explanation:
You can write fractions as equations and solve for a decimal.
-3/8 = -3 ÷ 8
-3 ÷ 8 = -0.375
Answer:
I got you bro
Step-by-step explanation:
-0.38
What is the x-coordinate of the point of intersection for the two lines below?
(2x + y = -9
(2x - 5y =-3
Answer:
From the graph, it is clear that the point of intersection is:
(x, y) = (-4, -1)And the x-coordinate of the point of intersection for the two lines is:
x = -4Step-by-step explanation:
As we know that the solution of the system of equations is the point of intersection. Let us solve it.Given the system of equations
[tex]\begin{bmatrix}2x+y=-9\\ 2x-5y=-3\end{bmatrix}[/tex]
solving the system of equations
subtracting 2x+y = -9 from 2x-5y = -3
[tex]2x-5y=-3[/tex]
[tex]-[/tex]
[tex]\underline{2x+y=-9}[/tex]
[tex]-6y=6[/tex]
so
[tex]\begin{bmatrix}2x+y=-9\\ -6y=6\end{bmatrix}[/tex]
solving for y
[tex]-6y=6[/tex]
Divide both sides by -6
[tex]\frac{-6y}{-6}=\frac{6}{-6}[/tex]
[tex]y=-1[/tex]
[tex]\mathrm{For\:}2x+y=-9\mathrm{\:plug\:in\:}y=-1[/tex]
[tex]2x-1=-9[/tex]
[tex]2x=-8[/tex]
Divide both sides by 2
[tex]\frac{2x}{2}=\frac{-8}{2}[/tex]
[tex]x=-4[/tex]
Thus, the x-coordinate of the point of intersection for the two lines below will be:
[tex]x=-4[/tex]
Also, the graph is attached.
From the graph, it is clear that the point of intersection is:
(x, y) = (-4, -1)And the x-coordinate of the point of intersection for the two lines is:
x = -4PLEASE ANSWERRRRRRRR!!!
What is the value of, when x^2+5=21?
Have a good day!!
Answer:
x= 4 or -4
Step-by-step explanation:
take the root of both sides then solve
hope this helped♥
Solve this equation
бу – 14 = 22
y =
Answer:
Let's solve your equation step-by-step.6y−14=22Step 1: Add 14 to both sides.6y−14+14=22+146y=36Step 2: Divide both sides by 6.6y6=366y=6Answer:✍️y=6Monday: 10 apples and 5 bananas
cost £4.20
Friday: 8 apples and 10 bananas
cost £5.40
Find the cost of each.
Answer:
An apple costs £0.25
A banana costs £0.34
Step-by-step explanation:
PLZ HELP DUE IN 30 minutes
For the cube first we find the surface on one side which is 3x3=9ft^2
we have 6 sides 9x6=54ft^2
For the pyramid first we find the surface of the base which is 15x15=225in^2
next we find the surface of the sides which is 7*15/2=52.5in^2 52.5*4=210in^2
210+225=435in^2
Answer:
435 inches for pyramid 54ft for cube
Step-by-step explanation:
52.5 x 4=210
15 x 15 = 225
cube 3 x 3 ft equals 9 feet repeat for all 6 faces u get 54ft
what is the answer to x - 8 < -2
Answer:
X < 6
Step-by-step explanation:
Add 8 to both sides
x < 6
Answer:
X<6
Step-by-step explanation:
x-8<-2
So first off, you want to get X by itself. To do that you have to do the opposite of what the number is. If the number is negative you add it. If the number is positive, you subtract it. What you do on one side, you do on both.
x-8<-2
+8 +8
X<-2+8
Next, You need to add alike terms.
X<6
A box of oat cereal costs $4.37 for 19 ounces. A box of rice cereal costs $3.77 for 13 ounces.
Which box of cereal costs less per ounce? Complete the explanation and give your answer.
Answer:
Oat cereal cost less per oz.
Step-by-step explanation:
OC: 4.37/19=0.23
RC: 3.77/13=0.29
oat cereal shows up as less for one ounce
factorize x^2+3x-ax-3a
Answer:
=−ax+x2−3a+3x
Step-by-step explanation:
helppp
algebraaaaa what is sum of polynomials
Answer:
3x^2+6x+4
Step-by-step explanation:
6x+7+x^2+2x^2-3
3x^2+(7-3)+6x
3x^2+6x+4
565 miles in 12 hours
100 POINTS
A plant is already 15.00 meters tall, and it will grow 6 centimeters every month. The plant's height, H (in meters), after x months is given by the following. =H+15.000.06x What is the plant's height after 15 months?
I need help with this, I can't figure it out.
Answer:
- 4, 13, - 21, 47
Step-by-step explanation:
Using the recursive rule and a₁ = - 4 , then
a₂ = - 2a₁ + 5 = - 2(- 4) + 5 = 8 + 5 = 13
a₃ = - 2a₂ + 5 = - 2(13) + 5 = - 26 + 5 = - 21
a₄ = - 2a₃ + 5 = - 2(- 21) + 5 = 42 + 5 = 47
Thus the first 4 terms are - 4, 13, - 21, 47
Please help!
if the ball family has a child in 8 years how much can I expect to spend to raise a child per year from birth to 5 years of age ?
A). $22,800
B). $21,530
C). $20,890
D).$18,240
Answer: 22,800
Step-by-step explanation: Depends on what you do that year
The original price of a marker is $5.00 What will the new price be after a
15% increase ? *
Answer:
5.75
Step-by-step explanation:
for a 15% increase, you multiply 5.00 x 1.15. you then get 5.75. hope this helps!
Answer:$5.75
Step-by-step explanation:
Find the measure of the indicated angle:
A) 68°
C) 45°
B) 47°
D) 940
Please help I don’t know how to do this
Answer:
x = 50°
Step-by-step explanation:
According to exterior angle property of a traingle , measure of exterior angle is equal to sum of it's two interior angles of the triangle. So,
[tex]x = 15 + 35 = 50[/tex]
Equations
6) 2x + 3y = -1
3x + 4y = -4
Answer:
x = -8
y = 5
Step-by-step explanation:
2x = -3y-1
x = (-3y-1)/2
3x + 4y = -4
3[(-3y-1)/2]+4y = -4
(-9y-3/2)+4y = -4 (x2 all)
-9y-3+8y = -8
-9y+8y = -8+3
-y = -5
y = 5
3x+4.5 = -4
3x+20 = -4
3x = -24
x = -8
checking:
2.(-8)+3.5 = -1
-16+15 = -1 (checked)
1)
Which decimal represents the portion that is NOT shaded?
A)
0.003
B)
0.03
0
0.3
D)
3.0
Answer:
D) 3.0
Hope this helped
Will mark brainliest for whoever answers
Answer:
Uh is it B, what kind of question is this
Step-by-step explanation:
Answer:
i think it is b
Step-by-step explanation:
Solve the system.
y+5x=1
5y-x=5
The solution is ___
Explain your choice of method.
Answer:
(0, 1)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Algebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define Systems
y + 5x = 1
5y - x = 5
Step 2: Rewrite Systems
y + 5x = 1
Subtract 5x on both sides: y = 1 - 5xStep 3: Redefine Systems
y = 1 - 5x
5y - x = 5
Step 4: Solve for x
Substitution
Substitution in y: 5(1 - 5x) - x = 5Distribute 5: 5 - 25x - x = 5Combine like terms: 5 - 26x = 5Isolate x term: -26x = 0Isolate x: x = 0Step 5: Solve for y
Define equation: 5y - x = 5Substitute in x: 5y - 0 = 5Subtract: 5y = 5Isolate y: y = 1convert 3 4/5 into a improper fraction with steps please
Answer:
Step-by-step explanation:
((3×5)+4)/5=
19/5
The improper fraction is 19/5.
We have to convert [tex]3 \dfrac{4}{5}[/tex] it into an improper fraction.
To convert into an improper fraction calculation must be done in a single unit following all the steps given below.
Step1; Write the fraction into simple fractions,[tex]= \dfrac{3 \times 5 + 4}{5}[/tex]
Step2; Solve the following equation.[tex]=\dfrac{15+4}{5}\\\\=\dfrac{19}{5}[/tex]
Hence, The improper fraction is 19/5.
To know more about Fractions click the link given below.
https://brainly.com/question/21449807
PLLSSS HELP ASAP!!!!!!!!
Evaluate the expression shown for x = 9.
-5/6x +7.
A.-13 1/3.
B.-1/2.
C.7 1/3.
D.9 2/3
Answer:
B. 1/2
Step-by-step explanation:
Make 9 an improper fraction, then multiply by -5/6.
-5/6 times 9/1 = -45/6.
-45/6 cannot be simplified, so you make it a mixed number.
-7 1/2.
Add the 7 to -7 1/2 and that cancels out to 1/2