hi
(y-7) (y+6) = y²+6y -7y -42
= y² -y -42
Add. 8x - 7 + 6x + 8
Help. I might be dumb for not knowing this but please help
Answer:
1
Step-by-step explanation:
Answer:
14 x + 1
Step-by-step explanation:
You aren't dumb, your teacher can't teach!
First we must add the x values together:
8x - 7 + 6x + 8
8 + 6 = 14
14x -7 + 8
Now we add the constants (regular numbers):
14x -7 + 8
-7 + 8
14x +1
There we go!
8x -7 + 6x +8
is
14x +1
The height of a triangle is one-third of its base. If the area is 121.5ft^2, what is the height of the triangle?
9.
it’s too long to explain so just look at the picture, hope it helps.
Please help I need an explanation i will give brainliest :)
y=10
If you divide 8 by 2 you'll get 4. Now do the opposite of division. multiply5 by 2 you'll get 10
rounding to 1 significant figure, estimate the answers to these questions:
a)
78 x 92
b)
615 x 38
c)
423 x 764
Philip's rectangular deck is 5 yards wide. The ratio of the width to the length is 4 to 5. What is the approximate length of Philip's deck in feet? Hint: 1 yard = 3 feet.
Answer:
18.75 feet
Step-by-step explanation:
Step 1
we find the length of Philip's rectangular deck in yards
The ratio of the width to the length is 4 to 5.
Philip's rectangular deck is 5 yards wide.
Hence,
Hence:
4/5 = 5/x
Cross Multiply
4x = 5 × 5
4x = 25
x = 25/4
x = 6.25 yards
The length of Philip's field = 6.25 yards
Hint: 1 yard = 3 feet.
Converting the yard to feet
1 yard = 3 feet
6.25 yards = x
Cross Multiply
x = 6.25 × 3 feet
x = 18.75 feet
Therefore, the length of Philip's field in feet = 18.75 feet
help pleae look at the picture!
Michael consumes a 16 ounce bag of potato chips and 12 ounce bag of pretzels every day after school. How many more ounces of potato chips than pretzels will Michael have eaten at the end of a 5 day school week?
A.
20 ounces
B.
80 ounces
C.
60 ounces
D.
28 ounces
Answer:
b
Step-by-step explanation:
Find the slope of the line passing through each of the following pairs of points.
(5, 0), (−3, 0)
Answer:
0
Step-by-step explanation:
m= y2-y1/x2-x1
=0-0/-3-5
=0/-8
=0
Answer:
Slope = 0
Step-by-step explanation:
A rectangular field is to be enclosed by a fence and divided
into two parts by another fence. Find the maximum area
that can be enclosed and separated in this way with 800 m
of fencing
Answer:
80000 square meters
Step-by-step explanation:
perimeter + dividing fence = 800
let a = length
let b = width
let c = length of dividing fence
perimeter = 2*a + 2*b
let's say...
c is the same as the length
2a + 2b + c = 800
2a + 2b + a = 800
3a + 2b = 800
area = length*width
area = a*b
area / b = a
3*(area/b) + 2b = 800
3*(area/b) = 800 - 2b
area/b = (800 - 2b)
area = (800 - 2b)*b
To make the area large, we make the right hand side large.
800b - 2b^2
If you put in terms of x, y it looks like a downward opening parabola, so the max area is at the vertex. Half way between the roots.
y = -2x^2 + 800x
y = -x^2 + 400x
0 = x*(-x + 400)
roots are x= 0 and x = 400
vertex is at x, aka b = 200
area at b=200 is (800 - 400)*200 = 80000
and a is area/b... 80000/400 = 200
1) The value of y varies directly with x. If x = 3, then y = 13.
Show your work for finding the value of x when y = 39?
Answer:
When y is 39 x is 3.
Step-by-step explanation:
Proportions!
x = 3
y = 13
We need to find our multiplier first. How did 13 turn into 39?
39/13 = 3
13 * 3 = 39
We multiplied by 3!
Now we multiply x by three to keep the propotion, proportional!
x= 3
(3) * 3 = 9
Now we make the proportion
3 : 39
When y is 39 x is 3.
Consider Brainliest! Hope this helped!
sum of numbers 12-111
Answer:
12-111=-99
Step-by-step explanation:
Craig and Jeff are comparing their plans for downloading songs. Craig pays a monthly fee of $5.50 and then $0.25 per song he downloads. Jeff
pays $0.80 for each song he downloads. What number of downloaded songs result in Craig and Jeff having the same monthly cost?
Answer:
10 songs
Step-by-step explanation:
Let number of songs Craig and Jeff downloaded be s
5.50 + 0.25s = 0.80s
5.50 = 0.55s
s = 10
Write the equation of the line that has a y-intercept of (0,4) and a slope of 2.
Answer:
y=2x+4
Step-by-step explanation:
the y-intercept is the y value of the point given. in the slope form, 2 would be your m
Fredrick manages a band and sing leads vocal the band charges $700 per concert Frederick receives 175 of that money and he shares the rest equally among the other five members of the band how much money does each of the five band members receive per concert
Answer:
Each will receive $105Step-by-step explanation:
Step one:
given data
we are told that the total amount made is $700
If Frederick receives $175 from the amount made the balance left to share is
=700-175
=$525
Step two:
Hence the five band members will share $525
each of them will receive
=525/5
=$105
1 + ( -6 ) = -3 + d how do i solve this
Darnell's car used 8 gallons of gasoline to travel 340 miles. After a mechanic worked on the car, it used 7 gallons of gasoline to travel 350 miles. How many more miles per gallon did Darnell's car travel after the mechanic worked on it?
Answer:
7.5 miles per gallon
Step-by-step explanation:
Given that:
8 gallons of gasoline traveled 340 miles
After being worked on by the mechanic :
7 gallons travels 350 miles
How many more miles per gallon did Darnell's car travel after the mechanic worked on it?
Obtain the unit mile traveled per gallon before and after the mechanic worked on the car :
Miles per gallon before being worked on by mechanic :
340 miles / 8 gallons = 42.5 miles per gallon
Miles per gallon after being worked on by mechanic :
350 miles / 7 gallons = 50 miles per gallon
(50 - 42.5) = 7.5 miles per gallon
Hence, vehicle moved 7.5 more miles per gallon after bwing worked on by mechanic.
With a beginning balance of $1200 and no additional charges during the next three months, you will just pay the minimum payment each month for the next three months. The APR is 24.99% and the minimum payment each month is 3% of the balance.
Here is the complete question.
With a beginning balance of $1200 and no additional charges during the next three months, you will just pay the minimum payment each month for the next three months. The APR is 24.99% and the minimum payment each month is 3% of the balance. Determine the finance charge, new balance, and minimum payment required for each of the next three months, and the starting balance for month 4 in the table below.
a) What is the total of minimum payments?
b) What is the total sum of the finance charges?
c) How much does the starting balance decrease after these three payments?
d)The total of your finance charges is what percent of our total payments?
Answer:
Step-by-step explanation:
Month Beginning Finance New Minimum
Balance Charge Balance Payment
1 $ 1200 24.99 1224.99 36.75
2 1188.24 24.75 1212.99 36.39
3 1176.60 24.50 1201.10 36.03
4 1165.07 24.26 1189.33 35.68
a.
The total minimum payments for 3 months = 36.75 + 36.39 + 36.03
The total minimum payments for 3 months = $ 109.17
b.
Total finance charges for 3 months = 24.99 + 24.75 + 24.50
Total finance charges for 3 months = $ 74.24
c. The starting balance decrease from 1200 to 1165.07, this implies that there is a reduction of $ 34.93
d. The total of finance charges = 74.24×(100/109.17)
The total of finance charges = 68% of total payments.
1. A basketball player made 12 out of 15 free throws she attempted. She wants to know how many consecutive free throws she would have to make to raise the percent of successful free throws to 85%. (a) Write an equation to represent this situation. (b) Solve the equation. How many consecutive free throws would she have to make to raise her percent to 85%?
Answer:
So 12 of 15 free throws is 80% so she would have to make at least 13 of 15 free throws to at least get over 85% cause 13 of 15 is 86.6% repeated
Step-by-step explanation:
If a figure is dilated by a scale factor of 6, the perimeter of the figure will change by factor of
A.3
B.6
C.36
D.12
Answer:
6
Step-by-step explanation:
The state of Colorado covers about 1.04 x 10^5 square miles. The Indian Ocean covers about 2.808 x 10^7 square miles. How many times bigger is the Indian Ocean than Colorado?
Answer:
27976000
Step-by-step explanation:
1.04 x 10^5=104000, and 2.808 x 10^7=28080000
28080000-104000=27976000
that's what I think, did this help
HELLLLLLLLLLLPPPPPPPPP
Answer:
there is no quick way around this. U need to plug in -4,2,8 into x value into the function, and see what y returns to
Step-by-step explanation:
help plz i'll give braineys
Answer:
c. 2/3
Step-by-step explanation:
the value of the number marked on the number line is 4/6, which simplifies down to 2/3.
Solve by substitution x-7y=7 6x-7y=-28
Answer:
(-7, -2)
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDASEquality PropertiesAlgebra I
Solving systems of equations using substitution/eliminationStep-by-step explanation:
Step 1: Define systems
x - 7y = 7
6x - 7y = -28
Step 2: Rewrite systems
x = 7y + 7
6x - 7y = -28
Step 3: Solve for y
Substitute: 6(7y + 7) - 7y = -28Distribute 6: 42y + 42 - 7y = -28Combine like terms: 35y + 42 = -28Isolate y term: 35y = -70Isolate y: y = -2Step 4: Solve for x
Define original equation: x - 7y = 7Substitute in y: x - 7(-2) = 7Multiply: x + 14 = 7Isolate x: x = -7And we have our answer!
10 is 32% of what number?
a. ; 32
b. ; 31.25
c. ; 3.2
d. ; 312.5
ANSWER:
31.25
STEP-BY-EXPLANATION:
you take 32 percent of a number and get 10, then what is that number?
you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.
you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.To solve this problem you multiply 10 by 100 and then divide the total by 32 as follows:
you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.To solve this problem you multiply 10 by 100 and then divide the total by 32 as follows:(10 x 100) / 32
you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.To solve this problem you multiply 10 by 100 and then divide the total by 32 as follows:(10 x 100) / 32When we put that into our calculator, we get the following answer:
you take 32 percent of a number and get 10, then what is that number?In other words, you know that 32 percent of a number is 10 and you want to know what that initial number is.To solve this problem you multiply 10 by 100 and then divide the total by 32 as follows:(10 x 100) / 32When we put that into our calculator, we get the following answer:31.25
GAVE ME THE BRAINLIEST IF MY ANSWER WAS HELPFUL...
Answer:
b. 31.25
Step-by-step explanation:
[tex]\frac{10}{y} :\frac{32}{100}[/tex]
y × 32 = 10 × 100
32y = 1000
32y ÷ 32 = 1000 ÷ 32
y = 31.25
How many positive divisors does the number 24 have?
i need this asap! will give a thanks and brainliest to whoever answers !!
Answer:
10 spiders
18 grasshoppers
m=2/3; passes through the point (3,-1)
your response will be the number value for b
9514 1404 393
Answer:
-3
Step-by-step explanation:
The "b" is the y-intercept in the slope-intercept form ...
y = mx + b
Filling in the given values, we can find b.
-1 = (2/3)(3) +b
-1 = 2 + b . . . . simplify
-3 = b . . . . . . . subtract 2
The value for b is -3.
ellie is preheating her oven before using it to bake. the initial temperature of the oven is 65° and the temperature will increase the rate of 10° per minute after being turned on what is the temperature of the oven six minutes after being turned on what is the temperature of the oven 10 minutes after being turned on
Answer:
The temperature of the oven after 6 minutes is 125 degrees and after 10 minutes its 165 degrees.
Step-by-step explanation:
10 x 6 = 60
60+65=125
10 x 10 = 100
100+65=165
If you can solve both of these ill give brainliest with work!
Answer:
1) 4 ft
2) Length =69
Width=64
Step-by-step explanation:
1) 2x-2+2x-2+x-2+x-2=x+x-1+x-1
6x-8=3x-2
6x-3x=-2+8
3x=6
x=2
plugging it back in, we get for the triangle
2+2-1+2-1=4 (same answer for the rectangle, although it would have a width of zero)
2) w+w+w+5+w+5=266
4w+10=266
4w=266-10
4w=256
w=64
l=64+5=69
Question 2 (1 point)
(03.01 LC)
What is the length of leg y of the right triangle? (1 point)
a- 2
b- 8
c- 12
d- 35
Answer:
my guys its 12 so its c
Step-by-step explanation:
i did the test
Answer:
12
Step-by-step explanation: