A line passes through the point (–2, 7) and has a slope of –5. What is the value of a if the point (a, 2) is also on the line?
A. -7
B. -1
C. 1
D. 7
Answers
Answer:
-7
Step-by-step explanation:
Maybe
y - 7 = -5x -10
y = -5x -3
-5(x)-3=2
-5x-3=2
-5x=5
x = -1
B
Related Questions
Dean loves rocks! He has 666 pieces of granite, 333 pieces of marble, 141414 pieces of sandstone, and 111 pieces of slate.
What is the ratio of pieces of sandstone to pieces of marble in Dean's collection?
Answers
Answer:
The ratio of sanstone to marble is... 141414 : 333
All you have to do is look at how much sandstone Dean has and how much marble he has, then put the amount of sandstone infront of the amount of marble because in the question it says what is the ratio of sandstone to marble and you see that sandstone is first.
Hope this helps! :)
Stay safe
The Kirkland family is buying a new living room set that costs $1,495.
They are going to put a down payment of $400 and then put the rest on
their credit card that has an annual interest rate of 28%. If they pay off
the furniture in 1 year, how much interest would they pay?
Answers
======================================================
Explanation:
The down payment is $400, so that means they must pay back 1495-400 = 1095 dollars. Let L = 1095 be the amount loaned
The annual interest rate is 28% which means r = 0.28; the monthly interest rate is i = r/12 = 0.28/12 = 0.02333 approximately
There are 12 months in a year, so n = 12 is the number of payment periods
----------------------------------------
In summary so far, we have
L = 1095i = 0.02333 (which is approximate)n = 12Those values will be plugged into the monthly payment formula below
M = L*( i*(1+i)^n )/( (1+i)^n - 1 )
M = 1095*( 0.02333*(1+0.02333)^12 )/( (1+0.02333)^12 - 1 )
M = 105.671914631108
M = 105.67
The monthly payment is $105.67
If they have a monthly payment of $105.67, and they pay that for 12 months, then 12*105.67 = 1,268.04 dollars is the amount of money they pay back to the credit card company.
The total amount of interest would be 1,268.04 - 1,095 = 173.04 dollars
Side note: the formula is a complicated ugly mess, so it's understandable to use calculators that already have the formula built in. Many websites offer free calculators that do this.
what is the equation of the best fit for this data
Answers
Answer:
i-i think it either A) or C)
Step-by-step explanation:
6x-2y=-2
7x-7y=14
I’ve been using the elimination method but I keep getting the wrong answer. The answer I’m getting is (-3/2,-7/2). I’m just trying to not get fractions as an answer. Thanks for helping out if you can! (I still need to use elimination method without getting a fraction in the ordered pair)
Answers
Answer:
7x-7y=14
x=3 and y= 1
i think :)
Step-by-step explanation:
The point (1, –5) is reflected across the y-axis. A coordinate plane. What are its new coordinates?
(–1, 5)
(1, –5)
(–1, –5)
(1, 5)
Answers
Explanation:
The reflection rule we use is
[tex](x,y) \to (-x, y)[/tex]
when we want to reflect over the y axis. The x coordinate flips from positive to negative, or vice versa, while the y coordinate stays the same.
Therefore, [tex](1, -5) \to (-1, -5)[/tex]
-7z - 59 = -10 what does z =?
Answers
Answer:
-7
Step-by-step explanation:
Answer:
z = - 7
Step-by-step explanation:
-7z = 49 (you add up -59 and -10, 2 - signs = +)
-z = 7 (you do 49 divided by 7)
z = - 7
I think this is right
ok ok ok now whats -4 = -20
Answers
Answer:
This is wrong But if you ask me what is -4= -2² and -20= -2×10¹
Answer:
ok ido not know
Step-by-step explanation:
Solve the equation.
h + | -8| = 15
Answers
Answer:
if you're trying to say h+ -8 = 15 then h would be 23
Please answer the question in the picture that I have provided
Answers
Answer:
i think it b im not to sure
Step-by-step explanation:
Answer:
sqrt 25 is a rational number
Step-by-step explanation:
Harrison has 70 CDs in his music collection. If 10% of the CDs are country music and 60% are pop music, how many CDs are other types of music?
Answers
Answer:
21
Step-by-step explanation:
The number of CDs of another type of music will be 21.
What is an expression?Expression in maths is defined as the collection of numbers variables and functions by using signs like addition, subtraction, multiplication, and division.
Numbers (constants), variables, operations, functions, brackets, punctuation, and grouping can all be represented by mathematical symbols, which can also be used to indicate the logical syntax's order of operations and other features.
Given that Harrison has 70 CDs in his music collection. If 10% of the CDs are country music and 60% are pop music.
The percentage of the other CDs will be:-
P = 100 - 60 - 10
P = 30%
The number of the other CDs will be:-
Number = 70 x 30%
Number = 70 x ( 30 / 100 )
Number = 21
To know more about an expression follow
https://brainly.com/question/13882635
#SPJ2
Alejandro has gone to school StartFraction 5 Over 7 EndFraction of the last 35 days. Which expression can be used to determine the number of days Alejandro has gone to school?35 divided by 7 = StartFraction 5 Over 7 EndFraction
35 times StartFraction 5 Over 7 EndFraction
StartFraction 5 Over 7 EndFraction divided by 35
StartFraction 7 Over 5 EndFraction divided by 35
Answers
Answer:
35 times 5/7
Step-by-step explanation:
5/7 is a decimal and when multiplied by 35 it turns into 25 days. 25/35 is 5/7 so the answer makes sense
Answer:
25 Days
Step-by-step explanation:
Do 5/7 * 5/5 and then you get 25/35 which the numerator is how many days he went out of those 35 days
Almonds are a member of the peach family
Answers
faxxxxxxxxxxxxxxxxxxxx
Bob is packing a suitcase to take on an airplane. A suitcase and its contents can weigh at most 50 pounds before the airlines charge extra fees. Bob's suitcase weighs 10 pounds when it is empty, so he can put 40 pounds of clothes in the suitcase. Bob's shirts weigh 0.5 pounds each and his pants weigh 2 pounds each.
(1)Write an equation that would model how many pounds of clothing Bob can pack.
(2)Rewrite the equation to model the number of pants Bob can pack in terms of the number of shirts.
Answers
Answer:
1. 10x + 40 = 50
2. 10x + 2 + 0.5 = 40
Step-by-step explanation:
1. If bob's suitcase is 10lb. by itself then that is 10.
His limit of content and suitcase is 50lb.
His shirts weigh 0.5lb each.
His pants weigh 2lb each.
10x + 40 = 50
2. 10x + 2 + 0.5 = 40
Wendy did a survey of four bird parks and wrote the following observations:
Bird Park Survey
Park Number of Blue Birds Total Number of Birds
A 23 96
B 41 72
C 40 78
D 24 62
Based on the survey, which park had the greatest percentage of blue birds? (1 point)
Group of answer choices
Park A
Park B
Park C
Park D
Answers
Shilo is trying to compute the value of 27 + 55 + 13. She adds 27 + 13 to get 40 and then adds on 55. Which of the following properties is Shilo using?
1.) commutative
2.) distributive
3.) identity
4.) associative
Answers
Answer:
commutative property of addition is your answer
The commutative property of addition states that no matter which terms you add first, the result would be the same
(A) commutative is your answer
Kyle has three pieces of rope. The lengths of the ropes are 241.6 centimeters, 241.38 centimeters, and 264.7 centimeters.
What is the difference in length between the longest and shortest pieces of rope?
Answers
Answer:
23.32 cm
Step-by-step explanation:
longest - 264.70 cm
smallest -241.38 cm
so 264.70 cm -241.38 cm =23.32 cm
Answer: 23.32 cm (Don't forget your label)
Step-by-step explanation: 264.7 - 241.38 = 23.32 cm
3x - 7x + 2 < 10 - 12
14w - 8w - 5.4 ≥ 7.3- 10
PLS HELP ASAP
Answers
Answer:
first one is x>1
second one is w≥0.45
Step-by-step explanation:
1. −4x+2<10−12
−4x<−2−2
−4x<−4
2. 6w−5.4≥7.3−10
6w≥2.7
Answer:
x>1
w>=0.45
Step-by-step explanation:
I'm assuming you want to simplify the equations.
please help giving brain liest :DDDDDDDDDDDDDDDD
Answers
Answer:
uhh ik ur gonna hate bc of my answer
Step-by-step explanation:
Need help with this. Please don't answer if you're not sure thanks!
Answers
Explanation:
9(3)^-4
Answer:
C: 1/9
Step-by-step explanation:
A laptop has a listed price of $899.95 before tax. If the sales tax rate is 6.5%, find the total cost of the laptop with sales tax included.
Round your answer to the nearest cent, as necessary.
Answers
Answer:
the total cost of the laptop with tax is 958.45
Step-by-step explanation:
You have $3.25 to buy bananas. Each bananas costs $0.35. How many bananas will you buy? Will you use all your money? If not, how much will you have left over?
Answers
Answer:
If had left over I would leave $1.85
Step-by-step explanation:
Select the graph that represents the given set. (Click on the graph until the correct one is showing.) E = {(6, 2), (7, 3), (6, -1), (5, 4)}
Answers
Step-by-step explanation:
the answer is second picture because according to the coordinate which is the first number in the bracket is refer to x axis while the number that after comma is for y axis; (x,y)
Answer:
I didn't know how to put it on here so I provided a screenshot of the correct answer
Step-by-step explanation:
y=-4x+15
8x-2y=-30
using a substitution method or elimination method.
Answers
8x - 2(-4x + 15) = -30
8x + 8x - 30 = -30
16x = 0, x = 0
8(0) - 2y = -30
-2y = -30, y = 15
The answer: x = 0, y = 15
You place a billiard cue against a billiard table. The foot of the billiard cue is 15 cm away from a table and the top of the billiard cue touches the table at a point 60 cm off the ground. what is the slope of the billiard cue?
Answers
Answer:
It would be 4
Step-by-step explanation:
When dealing with slope its always going to be rise over run, so 60/15 is 4
Hope this helps :)
HELP ME ASAPPPP, i'LL GIVE YOU BRAINLIST!!! NO NONSENSE ANSWERS PLS!
1 SLIDE OPTIONS.
$515
$575
$600
$650
SLIDE 3 OPTIONS
5 percent
15 percent
25 percent
30 percent
SLIDE4 OPTIONS
$87.55
$123.50
$149.22
$218.50
Answers
∧
Answer:
1, 3, and 4
Step-by-step explanation:
Make him Brainliest he was first.
Need help with this math problem
Answers
Answer:
y= -2x plus 16
Step-by-step explanation:
Answer:
y= 2x + 16
Step-by-step explanation:
mark me as brainliest
PLEASE HELP AS SOON AS POSSIBLE :)
At Sally's Diner, combo meals come with either chips or fries. Of the 115 customers on Friday, 80% ordered combo meals. Of these 3/4 had fries. How many customers on Friday had fries with their meals?
A. 69
B. 72
C. 86
D. 92
Answers
Answer:
A: 69
Step-by-step explanation:
80% of 115 customers had combos. To find out the amount that had combos, we multiply the amount of customers by percentage. 115 * 80% (0.8) is 92. 92 customers had combo meals. 3/4 of them had fries with it, and 3/4 is 75% in percent form. We multiply 92 by 75% to get the amount that had fries. 92 * 75% (0.75) is 69. There. Sally's Diner had 69 of Friday's customers order fries with their combo meals.
92 x .75% = 69
Answer : A. 69
( -20 , 14 ) and ( 30, 18)
Slope, Explanation needed please HELPPPPPP
Answers
Answer: 2/25
Step-by-step explanation:
The formula to find the slope is (y2-y1)/(x2-x1)
If you plug in the numbers, you get (18-14)/(30-(-20))
Solve the expression and you get 4/50 = 2/25
So your answer is 2/25
Answer:
the slope is 2/25. use the formula m= y2-y1/x2-x1 and plug in the points
What is the total surface area of this rectangular pyramid?
A rectangular pyramid. The rectangular base has a length of 12 feet and width of 6 feet. 2 triangular sides have a base of 12 feet and height of 8 feet. 2 triangular sides have a base of 6 feet and height of 9.5 feet.
_____________ square feet
HELP PLS!!!
Answers
Answer:
225 square feet
Step-by-step explanation:
the base of the pyramid would be 76 ft², since 12*6=72. Then you get the surface area of the sides. 2 of the sides would be 48 ft², since (12*8)/2=48. The other 2 sides would be 28.5 ft², since (6*9.5)/2-28.5. Then you just add the surface areas of all the sides; 76+48+48+28.5+28.5 to get 225.
Hope this helps! :)
Answer:
(C) 225
Step-by-step explanation:
I took test on edge 2021 got 100%
The sales tax for an item was $8.80 and it cost $440 before tax.
Find the sales tax rate. Write your answer as a percentage.
Answers
Answer:
Step-by-step explanation:
In non-mathematical form, the question is asking $8.80 is what percent of $440. N will equal the percent. So, you would set up the equation like this: 20 = N · 440
You need to solve the equation.
20/440 = N · 440/440
0.045 repeating = N
Rounded, the sales tax rate would be 4.5%