Let y = 7x + 4. what is x when y = 18?
Answer:
2
Step-by-step explanation:
melissa began atop a hill that was 1,350 feet high. she descended 120 feet, took a break and then descended 235 more feet. Which expression shows the change in melissa elevation
What number needs to be added to 4 and 7 so that the ratio of
the first number to the second becomes 2:3?
Answer:
a.
Step-by-step explanation:
Bananas cost $1.05 a pound at the market. If Conner
bought 3.4 pounds, what was the total cost?
Answer:
I think the answer is 3.57 because 3.4 x 1.05 is 3.57
HELP PLSPLS QUICKPLSSSSSSSSSSSS
Answer:
Step-by-step explanation:
11/12 - 5/8 = ? Make the denominator the same (multiply the first term by 2 and the second term by 3).
22/24 - 15/24 = ? Just simplify/solve. 22-15=7.
7/24
OPTION A = 7/24
HELP MATH LAST ONEE!! :D MARKING BRAINLISEST!
Answer:
y = -11
Step-by-step explanation:
The slope-intercept form of an equation of a line:
y = mx + b
m - slope
b - y-intercept → (0, b)
We have the slope m = 0 and the point (0, -11) → b = -11.
Substitute:
y = 0x - 11 = -11
It's a horizontal line.
Answer:
Step-by-step explanation:
Slope-intercept form: [tex]y=mx+b[/tex] when [tex]b[/tex] is the y-intercept and [tex]m[/tex] is the slope
The slope is already given in the question: 0
The y-intercept is the value of y when x is equal to 0. We can see that the given point, (0,-11) also tells us this. When x is equal to 0, y is equal to -11. Therefore, the y-intercept of the line is -11.
Finally, we plug the slope and the y-intercept back into the original equation.
[tex]y=mx+b\\y=0x+(-11)\\y=0-11\\y=-11[/tex]
I hope this helps!
Rigoletto's Portraits specializes in making circular portraits of people. A large portrait is 78 in. in diameter. A medium portrait is 26 in. in diameter. Estimate the difference between the areas of the two sizes of portraits. Use 3.14 for mc018-
. Round your answer to the nearest whole number.
Answer:
Step-by-step explanation:
Find all solutions to the following system of equations. (x-2)^2+(y+3)^2=4 and x-y=3
Equation form:
x=2, y=-1
x=0, y=-3
what is the answer to x + 5 = -6
Answer:
x=-11
Step-by-step explanation:
If you subtract the 5 on both sides, you get -11.
I should explain further. So if you subtract the 5 on the left side, it will cancel out. Subtracting the 5 on the right side will give you the equation, -6 - 5, which is equal to -11.
Use trig identities to verify this expression:
((1-tan^2(x))/(sec^2(x))=cos(2x).
Answer:
See below
Step-by-step explanation:
Verify the expression:
((1-tan^2(x))/(sec^2(x))=cos(2x)
-----------------------
(1-tan^2(x))/(sec^2(x) =(1-tan^2(x))/(1/cos^2(x) =(1-tan^2(x))*cos^2(x) =cos^2(x) - sin^2(x) = cos^2(x) - (1 - cos^2(x)) =2cos^2(x) - 1 =cos(2x)Done
You purchase a remote-controlled drone for d dollars. Your friend purchases a drone that costs $35 more than your drone. Your brother purchases a drone that costs three times as much as your friend's drone. Write and simplify an expression that represents the cost (in dollars) of your brother's drone.
Answer:
[tex]Brother = 105 + 3d[/tex]
Step-by-step explanation:
Given
[tex]Drone = d[/tex]
Friend = $35 more expensive than yours.
Brother = 3 * as much as your friend
Required
Write an expression for the cost of your brother's drone
I'll solve by analysing the question one sentence after the other
You:
[tex]Drone = d[/tex]
Your friend:
Friend = $35 more expensive than yours.
This means
[tex]Friend = 35 + You[/tex]
Substitute d for You
[tex]Friend = 35 + d[/tex]
Your brother:
Brother = 3 * as much as your friend
This means:
[tex]Brother = 3 * Friend[/tex]
Substitute 35 + d for Friend
[tex]Brother = 3 * (35 + d)[/tex]
Open bracket
[tex]Brother = 3 * 35 + 3*d[/tex]
[tex]Brother = 105 + 3d[/tex]
Teresa is going with her family to watch
professional barrel racers. Her family
buys 6 tickets. They have a coupon for
$1.50 off each ticket. They pay $52.50
altogether for their tickets. Write an
equation that you could use to represent
the situation. What is the price of a ticket
before using the coupon?
Answer:
6 * (x - 1.50) = 52.50 ; 10.25
Step-by-step explanation:
Given that :
Number of tickets purchased = 6
Coupon off per ticket = 1.50
Total Amount paid for tickets = $52.50
Let x = initial price of ticket :
Number of tickets purchased * (Initial ticket price - coupon) = total amount paid
6 * (x - 1.50) = 52.50
6x - 9 = 52.50
6x = 52.50 + 9
6x = 61.50
x = 61.50 / 6
x = 10.25
Hence, initial price of ticket = $10.25
help with this question
Answer: answer for a is 690 and answer for b is 3910
Step-by-step explanation:
for first you times 4600 by .15 and than you get and than you subtract 690 from 4600.
Complete the equation to find the quotient of 2,275 and 7.
2,275 ÷ 7=(___÷ 7) +(140 ÷ 7)+(35 ÷__)
=300+___+5
=_____
9514 1404 393
Answer:
2100720325Step-by-step explanation:
The various partial quotients can help you figure it out.
2275 ÷ 7 = 2100 ÷ 7 + 140 ÷ 7 + 35 ÷ 7 = 300 +20 +5 = 325
__
2100 ÷ 7 = 300
140 ÷ 7 = 20
35 ÷ 7 = 5
__
300 +20 +5 = 325
Which of these brands have the lowest cost per unit? PLEASE HELP MY FIRST MATH GRADE OF THE QUARTER IS ON THE LINE!
Answer:
you need a dotted point starting at 3 and going to to the right
Step-by-step explanation:
the dotted point means x < , x > and since it is greater you always go to the right
Jasmine is flying a kite. The kite has an angle of depression of 47 degrees and is flying on 35 feet of string. If Jasmine is holding the end of the string at 5 feet off the ground, how high above the ground is the kite? Draw a picture. Round your answer the nearest tenth.
whats 5+7? I need this in like 2 secs tysm :)
Answer:
12 it's that simple easy math
AB=3x
BC=10
AC=4x+1
X=
AB=
AC=
solution:
AB +BC = AC
3x +10 = 4x-1
10-1 = 4x-3x
9 = x
X=9
AB =3×9=27
AC = 4×9+1 =37
Two cars were at a gas station, a red car and a blue car. The red car filled up with 12 gallons of gas and was able to travel. The blue car filled up with 15 gallons of gas and was able to travel 330 miles. What was the gas mileage of each car? Which car got better gas mileage?
Answer:
Red Car Gas mileage:
= Distance travelled/ Gas used
= 300/12
= 25 mpg
Blue Car gas mileage:
= 330/15
= 22 mpg
The car with the better mileage is the one that goes further per gallon of gas which is the Red Car.
answer for brainly and points thank you
Answer:
It’s A
Step-by-step explanation:
Used math-way
Answer:
a
Step-by-step explanation:
Using the equation y=4x-1 to create a table
what is the slope-intercept form of a line
Can someone explain how to do this. And if you can, can you answer one question and tell me what the color is + show work. Thank you so much!
Problem ID: PRABESEJ
Answer:
??
Step-by-step explanation:
5. What is the percent change
in the price of a gallon of
nd ,
gas, to the nearest whole
percent? Is it an increase or
a decrease?
Answer: 6679
Step-by-step explanation: beautiful.
What is the formula for finding simple interest and what did each of the variables mean ?
Answer:
S.I = (P × R × T)/100
where;
P - principal
R - rate
T - time
what is the solution of -2x - 5y = -47 4x - 2y = -2
Answer:
x= 7/2 <--fraction y=8
Step-by-step explanation:
lmk if that is incorrect
s;gewgue ghsvsZhyszuhvzs
Help me with this
Answer:
The slope is 1
Step-by-step explanation:
Point slope equation is y-y1/x-x1
-2-(-1)/-3-(-2)
-2+1/-3+2
-1/-1=+1
Pls help me. 7th grade math
Answer:
there is a 2/6 chance because there are 2 odd numbers and being spun twice.
Step-by-step explanation:
Answer:
there is a 2/6 chance
Im in 7th grade math lma.o
IS THIS A FUNCTIONS OF NOT
I NEED HELP
Answer:
graph 4: yes
graph 5:no
graph 6: no
graph7: no
graph 8: yes
graph 9: no
Step-by-step explanation:
correct me if im wrong
and use vertical line test to figure these put next time :3
