Answer:
x=2 and y=−6
sorry this is pretty long, I did not know if you needed the steps or not
Step-by-step explanation:
−2y−10=x;−10x−y=−14
Solve−2y−10=x for x
−2y−10=x
−2y−10+−x=x+−x
−x−2y−10=0
−x−2y−10+2y=0+2y
−x−10=2y
−x−10+10=2y+10
−x=2y+10
-x/-1=2y+10/-1
x=−2y−10
Substitute−2y−10 for x in−10x−y=−14
−10x−y=−14
−10(−2y−10)−y=−14
19y+100=−14
19y+100+−100=−14+−100
19y=−114
19y/19=-114/19
y=-6
Substitute−6 for y in x=−2y−10
x=−2y−10
x=(−2)(−6)−10
x= 2
x=2 and y=−6
can anyone tell me what 3 1/4 looks like as a decimal
Answer:
3.25
Step-by-step explanation:
what's the difference between two step equations and one step equations
When solving two step equations you must solve one part of the equation so that you can solve the second part.
In one step equations you can just solve the equation as is.
Answer:
A one step equation needs one step, and a two step equation needs two steps.
Step-by-step explanation:
Find a three-digit number, which is 5 times greater than the product of it's digits.
Answer:
1,500 and 300
Step-by-step explanation:
300 x 5 = 1,500
convert the following to inches
3' 8"
Answer: 44 inches
Step-by-step explanation:
believe me plz mark me brainliest plz
Answer:
44 inches
Step-by-step explanation:
While testing 10 light bulbs, Harvey finds that 6 of them do not light. Which best describes the fraction of light bulbs that are working? A. number of light bulbs that are not working/total number of light bulbs B. number of light bulbs that are working/number of light bulbs not working C. number of light bulbs that are not working/number of light bulbs working D. number of light bulbs that are working/total number of light bulbs
Answer:
4/10
Step-by-step explanation:
There is 10 of them, and 6 are not working. So, it is 4/10
The first three terms of a sequence are given. Round to the nearest thousandth (if necessary). 15, 30,60,... Find the 6th term.
Answer: 120, 240, 480
Step-by-step explanation:
It would appear that the numbers are increasing in multiples of 2.
15 * 2 = 30
30 * 2 = 60
The next 3 terms will therefore be:
60 * 2 = 120
120 * 2 = 240
240 * 2 = 480
Answer:
480
Step-by-step explanation:
please help thanksss
Answer:
40 seconds
Step-by-step explanation:
The answer is 40 because the y axis would be altitude and the x axis would be time. As altitude decreases time increases. When the line crosses the x axis then that is your answer shown above.
An 18% tip is left on a $65 dinner bill. 5% tax is added (before tip). What is the total paid?
Answer: $79.95
Step-by-step explanation:
65 × 0.18 = 11.7
65 × 0.05 = 3.25
11.7 + 3.25 = 14.95
14.95 + 65 = $79.95
The diameter of a circle is 8 meters. What is the circle's circumference?
Answer:
25.13 square meters
Step-by-step explanation:
The formula for finding the circumference of a circle is πd or pi times the diameter
Diameter = 8 meters
Pi = 3.14
3.14 times 8 = 25.13
Can anyone help me with this
Answer:
No ....................
CAN SOMEONE ANSWER THIS CORRECTLY PLZ!
Answer:
DFG = 28⁰
because DEFG is a rhombus
=> DF is a bisector of angle EFG
=> EFD = DFG
we also have: EG is perpendicular with DF
EG cuts DF at O
=> EOF is a right triangle at O
=> EFD = 90⁰ - 62⁰ = 28⁰
=> DFG = 28⁰
Please help will mark brainiest
Answer:
DFE AND FED
Step-by-step explanation:
Determine which of the following pair of angles are complementary, supplementary or other
Answer:
I] 135+45=180
therefore supplementary angles
ii] 55+35=90
complementary angles
iii]55+45=100
neither
iv] 77+13=90
complementary angles
w-7=-4 i do not no this one please help me
Answer: i believe what you're looking for is W so, W=3
Step-by-step explanation: you add +7 to each side of the equation, which gives you W=3
Answer:
w= 3
Step-by-step explanation:
Add 7 to both sides of the equation w-7 = -4
w-7+7=-4+7
Simplify : w-7+7=-4+7 which simplifies to w= -4 +7
So, w = -4 +7 is w= 3
5 m
m
7 깄
0
M
K
5
Solve for the perimeter.
3 m
P=
Answer:
It might be C if im wrong sorry
Step-by-step explanation:
Simplify: 3•6 - 42 ÷ 2
Answer:
-3
Step-by-step explanation:
3 x 6 - 42/2 =
18 - 42/2 =
18 - 21 =
-3
Answer:
18-21=x
Step-by-step explanation:
18-21=x
x= -3(this is just extra)
What is -1 3/4 + (-3.8)? Show your work.
Answer:
6.65
Step-by-step explanation:
First, I simplified -1 3/4 to a decimal which is -1.75.
Then, I multiplied -1.75 and -3.8 and got 6.65
A triangle has sides of length 3 cm, 5 cm, and 7 cm.
Find the size of the largest angle in the triangle,
Answer:
C=120 degrees
Step-by-step explanation:
We can use the law of cosines to find an angle when we have all three sides
(7)^2 = (5)^2 + (3)^2 -(2)(5)(3)Cos(C)
49 = 25 +9 -30Cos(c)
49= 34 -30Cos(c)
15 = -30Cos(c)
Cos(c) = -1/2
C=120 degrees
Sheila has 28 stickers to divide evenly among 3 friends. She thinks there will be no leftovers. Use what you know about factor pairs to explain if Sheila is correct.
Answer:
She is wrong
Step-by-step explanation:
If our target number is 28 then we can create all of the following factor pairs for this number. These would be the following...
1, 2, 4, 7, 14 and 28
As we can see from the factor pairs there is no 3. This means that 3 would not divide evenly by 28 and cannot be multiplied by any whole number to create 28. Therefore, if you divide the 28 stickers by the 3 friends there will be some stickers leftover always.
What is the value of x ??
F. 180
G. 90
H. 40
I. 8
Help me please!
If you get it right, I’ll will brainliest u!!
Answer:
A :)
Step-by-step explanation:
Law of Syllogism: q=r r=q
If complementary angles = 90-degree angles, then 90-degree angles = complementary angles
Find the slope of y-intercept of the line represented by the table. Please look at the photo
Answer:
The slope is m= 4 and the y intercept is b= 9
Step-by-step explanation:
The slope is found by using change in y over change in x, or rise over run. From the table, this means, how much does y change for every time x goes up. As you can see, every time x increases by one, y increases by 4. So that´s your slope. The y intercept is when the line crosses the y axis, where x=0. Because you already know the slope, and that when x is one, y is 13, all you have to do is to know that going backwards by one for x means going backwards by 4 for y, and 13-4 is 9.
The social studies teacher wants to know whether the students in the entire school prefer a model United Nations activity or a student government activity. The teacher draws a random sample from the following groups: All teachers in the school All boys in each grade All students in each grade All students in the social studies club Which group best represents the population he should take a random sample from to get the best results for his survey?
All teachers in the school
All boys in each grade
All students in each grade
All students in the social studies club
Answer:
all students each grade, its a better representation of the wants of the whole group being affected
Step-by-step explanation:
Answer:
C: All students in each grade
Step-by-step explanation:
It cant be all teachers in the school since at the beginning of the question it says "whether the students" not whether the teachers plus it is not a mxed variety, so this question was sort of trying to catch you off guard
The reason why is if you pick all the boys in each grade then it wouldnt really be random since your picking the gender you want to answer it has to be a mixed variety all ages all genders and so on
Yes! All students in each grade would be a mixed variety since its all ages, all genders, and all grades this answer was a little obvious since they sort of gave you the answer saying "The social studies teacher wants to know whether the students in the entire school"
All students in the social studies club wouldnt be a good answer either since (as i said before) it has to be random and your picking who you want to answer plus since there in the club with the social studie steacher they are more likely to pick what she wants to pick
So the answer would be C: All students in each grade
I need some help with two problems
Answer:
24) x = 16
I am not sure about #25
If 12 oranges cost $4.80, what would be the cost for 5 oranges
Answer: 24
Step-by-step explanation:
Because if you do 4.80 times 5 you’ll get 24 because each orange cost $4.80
Answer:
the cost of 5 oranges would be $2.00
Step-by-step explanation:
To solve this we need to find the unit rate and when we do this we can solve this problem. To find that we need to divide 4.80 by 12 once we do that we just have to multiply that number by 5 to get our answer, when you divide you'll get 0.4 and then multiply that by 5 and you'll get $2.00.
What is the answer of 14.8-4b-(17.1-3b)
the answer choices are:
A. 0.375
B. 3.75
C. 37.5
D. 375
-1.8(3-1.4h) simplify the expression
Answer:
-5.4 + 2.52h
Step-by-step explanation:
You and 3 friends are going to the fair. You have a coupon that will save your group $20. If the total bill to get into the fair was $100, how much does one regular priced ticket to the fair cost?
Equation:
Answer:
Answer:
one regular ticket costs $30
Step-by-step explanation:
The total number of people = 4
Without the $20 coupon, the total cost would have been =100+20 = $120
Assume the price of one regular ticket is x;
4x = 120
Divide both sides by 4 to solve for x
x = 120/4
x = 30
Therefore, one regular ticket costs $30
Answer:
$30
Step-by-step explanation:
Since you pay 100 after discount, you add the 20 dollar discount to the 100 ($120)
Then since there are 4 of you in total, (you+ 3 friends), you divide by 4.
And Voila, your answer is $30 per person.
Hope this helps :)
I have a circle that has a diameter of 10 in. Explain how to find the area of the circle.
Answer:
r squared × π
Step-by-step explanation:
Half of the Diameter (5in) squared
multiply by π
Answer:
31.4
Step-by-step explanation:
A=(pie) radius 2
To find the radius half the diameter
A=3.14(5in)2
A=15.7 x 2
A=31.4
Select all of the trips that would take 2 hours.
1. Take a train going 80 miles per hour from Albany to New York City, which are 160 miles apart.
2. Walk 3 miles per hour to school, which is 1.5 miles away.
3.Drive 60 miles per hour between Buffalo and Seneca Falls, which are 120 miles apart.
Answer:
1 and 3
Step-by-step explanation:
80 (mph) × 2 (hours) = 160 (miles)
60 (mph) × 2 (hours) = 120 (miles)