Answer:
4/5 or 0.8
Step-by-step explanation:
y and x is directly proportional so when one increases the other also increases
the scale factor is 15/3 equals 5
so y is 4, x times 5 equals 4, which we rearrange to give 4/5 or 0.8
What is the equation of the line that is parallel
to the line y = 2x - 1 and passes through the
point (2, 7)?
Answer:
y= 2x + 3
Step-by-step explanation:
To have a parallel line they need to have the same slope.
Then you need to plot the point (2,7).
A slope of 2x means that it goes up 2 y values for every x value it goes up by. So to find the y-intercept, you need to go down 2 x values. Meaning you need to subtract 4 y values. (0,3).
y= (slope) + y-intercept
Answer:
y = 2x + 3
Step-by-step explanation:
1. Approach
The line y = 2x -1 is written in slope-intercept form, essentially; y = mx + b, where "m" is the slope, and "b" is the y-intercept. If two lines are parallel, then they both have the same slope. So one simply has to substitute in a point on the line to find out what the y-intercept is, and assemble the equation.
2. Slope
As mentioned above, two parallel lines have the same slope. Hence the slope of the line that one is trying to find the equations of is 2.
3. y-intercpet
Substitute in the point that is given, and solve for the y-intercept.
y = mx + b
y = 2x + b
7 = 2(2) + b
7 = 4 + b
3 = b
4. Assembling what one knows
The equation of the line is;
y = 2x + 3
Were 2 is the slope, and 3 is the y-intercept.
There is a rope running from the top of a flagpole to a hook in the ground. The flagpole is 21
feet high, and the hook is 20 feet from its base. How long is the rope?
Solve for x
PLS HURRY
Answer:
C.....................m
Write the equation of a line with a slope of 3 that passes through (-3,2).
Answer:
y = 3x + 11
Step-by-step explanation:
Substitute the information into the point-slope form equation.
Point-slope form: y - y₁ = m(x - x₁)
y - 2 = 3(x - (-3))
y - 2 = 3(x + 3)
y - 2 = 3x + 9
y = 3x + 11
TRUE OR FALSE:
7x - 9 = (7x - 1)(9)
Answer:
false
Step-by-step explanation:
7x-9=(7x-1)(9)
7x-9=63x-9
so, the LHS is not equal to RHS.
The quotient of a number and 6 minus -1/3 is equal to the quotient of the number and 8. What is the number?
Answer:
x = 8
Step-by-step explanation:
Let the number = x
x/6 - 1/3 = x/8
-1/3 = x/8 - x/6
-1/3 = (6x-8x)/48
-1/3 = -2/48x
Divide both sides by -2/48
x = -1/3 ÷ -2/48
= -1/3 × -48/2
= 48/6
= 8
x = 8
The number = 8
the ratio of boys to girls is 5:4. there are 64 girls in choir. how many boys are in choir?
1. 48
2.61
3.75
4.80
PLEASE ANSWER FAST!!! <3 ( only reply if you know the answer x_x)
Answer:
boy:girls
5:4
64/4= 16
5 X 16 =80
there are 80 boys
Inequalities
3x-(2½-x)>0
3(4-y)>6-y
Please this is my 2 of my 10 assignment,please help me with it i would do the rest my self
Answer:
x=5,y=2
Step-by-step explanation:
THis are the answer's because in the inequalities u solve them and them u get your answer
To amend a country's constitution 7/9 of the 69 states in that country must approve the amendment. If 52 states approve an amendment will the constitution be amended
Answer:
Constitution will not be amended.
Step-by-step explanation:
To amend the country's constitution, number of states should approve the amendment = [tex]\frac{7}{9}[/tex] of 69
= [tex]\frac{7}{9}\times 69[/tex]
= 53.67
≈ 53 states
But the states who approved the amendment = 52
And 52 < 53
Therefore, constitution will not be amended.
SOMEONE PLEASE HELP IF YK GEOMETRYYY IVE ASKED THIS QUESTION 3 TIMES NOWW SO PLEASEEE HELP MEEEE
Answer: what is your question
Step-by-step explanation:
How many solutions?
y = 5(x – 4)
4x + 12 = -y
Answer:
One solution, x = 8/9
Step-by-step explanation:
One way to solve this is to take one equation and substitute into the other and then solve. So, take y=5(x-4) and put that into the other equation.
4x + 12 = -y
4x + 12 = -(5(x-4)) <--- substitution here
4x + 12 = -5(x-4)
4x + 12 = -5x + 20 <-- simplifying
4x + 5x = 20 - 12
9x = 8
x = 8/9
Apples cost $2.99 per pund at Natural Grocers. If Landon purchases 3.6 pounds of apples, then how much willnhe spend? Round your answer to the nearest penny.
Answer:
$10.76
Step-by-step explanation:
Just multiply 2.99 by 3.6 and round
Tanisha baked an apple pie. She ate 1/6
of the pie. Her sister ate 1/4
of it. Tanisha gave her mother the rest of the pie. What fraction of the pie did Tanish give her mother?
A. 5/12
B. 2/3
C. 7/12
D. 11/12
Answer:
A.5/12
Step-by-step explanation:
Answer:5/12
Step-by-step explanation:
Please help me on this, all help will be appreciated
Find the value of c x 8 when c=9.
Answer:
72 hope it helps............
Answer:
72
is you answer because 8×9=72
Please can you help me do this it’s due January 7th today it’s 7th grade math
Answer:
I think it might be e=5h someone please correct me if I'm wrong
Step-by-step explanation:
Answer:
e = 5h
Step-by-step explanation:
To find the unit rate (money earned per hour), we divide 10 by 2, which gets us 5. That means $5 is earned per house. If h is the number of houses shoveled, and he earns $5 per house, we can write that as 5h. If e is the money earned, we can write this whole thing as e = 5h.
the diameter of a sold spherical ball is 35cm, Find its the surface area and the volume
Answer:52
Step-by-step explanation:
Multiply: two-thirds times six-sevenths Put your answer in lowest terms.
A. four-sevenths
B. four twenty-firsts
C. twelve twenty-firsts
D. three-sevenths
Answer:
i think I might be 0.57142857142 but if it’s wrong as g00gle
Step-by-step explanation:
Answer:
C. 12/21
Step-by-step explanation:
2/3 × 6/7 = twelve twenty first
PLEASE HELP I NEED THE ANSWER QUICK!!!
What is the Length/ value of N
Answer:
n = 104
Step-by-step explanation:
Answer:
n = 104
Step-by-step explanation:
I really would like some help with this I have been thinking about it but I just can't seem to get it right. so would really like to have some help please and thank you.
Answer:
ofc! :D
Step-by-step explanation:
i- x represents the input
ii- y represents the output
iii- yes, the input (x) is 4 times greater than the output (y)
b just plot them like normal on a coordinate grid :D
Please help need answer
What is the last digit of 2¹³?
Answer:
2
Step-by-step explanation:
2^13= 8192 and the last digit is 2.
If a wagon train traveled 12.5 miles each day, how many days would it take
them to get to Independence Rock which is 900 miles from their starting
point?
Answer:
8 to 20 miles
The covered wagon made 8 to 20 miles per day depending upon weather, roadway conditions and the health of the travelers. It could take up to six months or longer to reach their destination.
Step-by-step explanation:
plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answer:
3x+14
Step-by-step explanation:
2(3x+4) -3(x-2)
6x+8 -3(x-2)
6x+8 -3(x-2)
6x+8 -3x+6
6x+8-3x+6
6x+ 14 -3x
6x +14 -3x
3x +14
PLEASE HELP ME FAST I NEED THE SOLUTION REALLY QUICK
Answer:
WHERE IS THE QUESTION
Step-by-step explanation:
Can anyone help me with this question? <3 please and thank you!
Answer: 3/2 I’m on something similar rn
Step-by-step explanation:
Ryan buys a baseball bat. The original price is $20. Ryan has a coupon for a 20% discount. What is the sale price?
Answer:
here is how you do it
Step-by-step explanation:
first you must solve 1% of 20 which is .2
then you solve for 10% which is 2
then you double it which is 4
so you would take 4 dollars of the original price
the cost is $16
Amy and Ben share £21 between them in the ratio 5 : 2. How much does Amy get?
(Im really sorry I just don't understand ratio.)
Answer:
✑ [tex] \underline{ \underline{ \sf{First ,\: Let's \: learn \: about \: the \: ratio}}} : [/tex]
Let us consider , there are 30 boys and 40 girls in a school. So, the ratio of number of boys to number of girls = [tex] \sf{ \frac{30}{40} = \frac{3}{4} = 3:4}[/tex] and read as 3 is to 4. We can say , the ratio compares two of more quantities of same unit. Until two quantities have same units , it is meaningless to compare by ratio. So, to find the ratio of two quantities , it is necessary to express them in same unit or of same kind. Since , they are in division form. So ,ratio is unit less quantity. Thus , the ratio is a comparison of two quantities of the same kind in division which doesn't have any units. For example : [tex] \sf{ \frac{a}{b}} [/tex] is a ratio and is read as ' a is to b ' in which ' a : is antecedent and ' b ' is called consequent.
✎ [tex] \underline{ \underline{ \sf{Now \: let's \: solve : }}}[/tex]
☪ [tex] \underline{ \sf{Solution}} : [/tex]
£ 21 is to be divided between Amy and Ben in the ratio 5 : 2. So, let Amy get £ 5x and Ben get £ 2x.
Then , According to the question , [tex] \text{5x +2x = 21}[/tex]
Solve for x :
⇝ [tex] \sf{7x = 21}[/tex]
⇝ [tex] \sf{ \frac{7x}{7} = \frac{21}{7} }[/tex]
⇝ [tex] \sf{x = 3}[/tex]
The value of x is 3. Now , substitute the value of x in 5x :
Amy received £ 5x = 5 × 3 = £ 15 .
☥ [tex] \boxed{ \boxed{ \tt{Our \: final \: answer \: is \bold{£ \: 15}}}}[/tex]
Hope I helped ! ツ
Have a wonderful day / night ♡
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Please HELP
what is the slope-intercept equation slope: -2 y-intercept: 3
Answer:
y=-2x+3
Step-by-step explanation:
In a y=mx+b equation, M is the slope and B is the y intercept. So write down that equation and plug in the numbers you're given
DIRECTIONS: Use this information to answer Parts A, B, and C.
A traffic cone has a diameter of 10 inches and a height of 27 inches.
Part A
Find the volume of the cone.
Answer:
V=706.85
Step-by-step explanation:
Well, first of when you want to find the volume of the cone you need to have a radius and hieght. And the radius is half the diameter, so divide the diameter into half: 10/2=5 in. and you already have the height so just plug in the numbers.
Formula: V= [tex]\frac{1}{3}[/tex][tex]\pi[/tex][tex]r^{2}[/tex]h ---> V= [tex]\frac{1}{3}[/tex][tex]\pi[/tex]([tex]5^{2}[/tex])(27)
And put the plugged in formula in your calculator and you'll find the answer!
V=706.85
I hope this helped.