Answer:
One solution
Step-by-step explanation:
x+y=5
3x-y=-5
Add the equations together will get you:
4x=0
Divide the 0 by 4 to get the x alone will get you
x=0
Answer:
There's one solution
(0,5)
Step-by-step explanation:
There's one solution
We can tell this is true because of the 3x in the second on and just hte x in the first. If you look closely you'll see the coefficents for the x values is the only difference between the two.
Let's now solve
We need to get a positive variable by itself
let's take x+y=5 and solve for y
x-5= -y
y= -x+5
We can then plug this y value into the other equation
3x-(-x+5)= -5
3x+x-5= -5
4x= 0
x=0
Let's then plug this value in for x into any of the beginning equations
0+y=5
y=5
1. True or False: While using the Pythagorean Theorem, if A and B squared
are added and it equals C squared, it is a right triangle.*
*
Answer:
true because its correct
After Friday's football game, Megan and her friends go out for ice cream. They share the Mega Mountain sundae and finish the whole thing! When they pay for the sundae, Megan evenly divides the total among 5 people. Each person pays $5.20. Which equation can you use to find the total cost c of the sundae?
Answer: c= $( 5 x 5.20)
Step-by-step explanation:
Given: Total people =5
Money paid by each person = $5.20
Total cost of the sundae = (Number of people ) x (Money paid by each person)
Total cost of sunday : c= 5 x ($5.20)
i.e.Total cost of sunday = $(5 x 5.20)
i.e.Total cost of sunday = $ 26
Hence, the required equation to represent the total cost (c) of the sundae:
c= $( 5 x 5.20)
What is the apparent solution to this system of equations?
(Write your answer as an ordered pair)
(FIRST TO ANSWER GETS BRAINLIEST)
Answer:
x = (3,3)
Step-by-step explanation:
This is going to be x = (3,3) because this is showing where the x, y stand. The x goes, ∧ and the y goes to the ⇒ SO this is going to be x = (3,3) because the x comes first before the 2!
(8x + 9) + (15 - 8x)
An iPhone marked for 268$ was sold for $334 due to its great popularity to customers by what percent did the price go up ( round to the nearest tenth)
Answer:
27%
Step-by-step explanation:
John wants to buy a new motorcycle. The tax rate is 9%. How much tax will
he pay if the motorcycle cost is $4500? (i need this quickly, i'm trying to study for my math test tomorrow but i don't even know how to do the math- pls help!)
Answer:
$405.00
Step-by-step explanation:
$4500.00×9%=$405.00
please help.[tex]\frac{4}{x+2} +\frac{8}{x+5} -\frac{8}{x+3} -\frac{4}{x+6}[/tex]
A pizza store sold 36 pepperoni pizzas in a day, which was 24% of their pizza sales.
What was the total number of pizzas sold that day?
Answer:
150 pizzas
Step-by-step explanation
36 pizzas are equivalent to 24% so i divided both sides by 4 which gave me 9 pizzas for 6% . But 6 cannot fully fit into 100 so it will have to be a decimal i did 100 divided by 6 so i would know what i would have to divide both sides by which gave me 50/3 which was 16.66666667 which when i times by 9 by it gave me 150 pizzas
Hope this helps
The average depth of a certain ocean is 10,938 feet below the surface of the ocean.
Answer:
-10,938
Step-by-step explanation:
Since it is below sea level then it’s negative.
Hope this help!
Choose all of the points that are solutions to the equation y = x ^ 2-3x-4 .
Answer:(0,-4), (1,0), (2,6)
the hypotenuse of a right triangle is 15in and leg one is 12in how long is leg two
Answer:
9 inches
Step-by-step explanation:
A^2 + B^2 = C^2 !!!! This is very important to remember!!!
15^2 - 12^2 = 81^2
Get rid of ^2 by taking square root
Square root of 81 is 9!
66.6666666667 as a mixed number in simplest form
Answer:
66 67/100
Step-by-step explanation:
Answer:
Mix Number form: 66 2/3
Simplest Form: 6.66
Hope this helps.
Use what you know about ratios to describe a rate.
Answer:
down below
Step-by-step explanation:
A rate is a special ratio in which the two terms are in different units. For example, if a 12-ounce can of corn costs 69¢, the rate is 69¢ for 12 ounces. When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates.
Find the amount of the principal on a loan at 6% interest for 140 days if the interest was $253.15, using the exact interest method. (Round to the nearest whole dollar amount)
Answer:
$11,000
Step-by-step explanation:
Given that :
Time, t = 140 days = 140/365 = 0.3835years
Interest paid = 253.15
Interest % = 6%
Principal, p =?
Using the relation :
Interest = principal * rate * time
253.15 = p * 0.06 * (140/365)
253.15 = 0.0230136p
P = 253.15 / 0.0230136
P = 11000.017
Hence, the principal amount = $11,000
need help pls!!!! Algebra
Answer:
11
Step-by-step explanation:
Determine whether Joe is shorter or taller than the height of the tepee
Answer:
shorter
Step-by-step explanation:
Please anyone help anyway you can
what 2 numbers multiply together to equal 15, and add together to equal 8?
Answer:
7.5 x 2
4 + 4
Step-by-step explanation:
7.5 x 2 = 15
4 + 4 = 8
hope i helped you!
help ???????????????
Answer:
1. 14 people said 1 hour or more
2. 52 people
3. 13 people said it takes them less than half an hour and 13 people said it takes them more than half a hour. difference is 0
4. the data is taken in pairs of 2 people
Step-by-step explanation:
bottom question
5- 2
10 - 6
15 - 4
20 - 6
25 - 0
30 - 8
35 - 4
40 - 0
45 - 6
50 - 2
55-0
60-8
65-6
Becky roller skated 4/6 of a mile on Wednesday and 2/8 of a mile on Friday. How far did Becky roller skate in all?
Answer:
3/4
Step-by-step explanation:
4/6 + 2/8 =
x 8 x6
24/48 + 12/48 = 36/48 = 3/4
What is the y-intercept, b, of the additive relationship represented by this table?
Enter your answer as an integer in the box.
b =
x y
1 4
3 6
Answer:
3
Step-by-step explanation:
First step: Find the slope, Using the Formula y2 - y1 / x2 - x1 =
6-4=2 3-1=2 then u divde the y/x 2/2=1 So the slope is 1.
Step 2: Use the Slope- Intercept formula, Y=mx+b so 4 = 1(1)+b so 4 = 1 + b
Step 3: subtract 1 on both sides so 4-1=3 1-1=0 so 3 is the Y-Intercept.
if 3 more than 5 times a number is seven more than three times that number, what is the result when the number is added to 10
Answer: 12
Step-by-step explanation:
3 more than 5 times a number = 3+5x
seven more than three times that number = 7+3x
is = "="
Thus,
3 + 5x = 7 + 3x
2x = 4
x = 2
2 + 10 = 12
Hope it helps <3 :)
Need some help working these out
Answers:
Problem 1) 40 degreesProblem 2) 84 degreesProblem 3) 110 degrees===============================================
Explanation:
For these questions, we'll use the inscribed angle theorem. This says that the inscribed angle is half the measure of the arc it cuts off. An inscribed angle is one where the vertex of the angle lies on the circle, as problem 1 indicates.
For problem 1, the arc measure is 80 degrees, so half that is 40. This is the measure of the unknown inscribed angle.
Problem 2 will have us work in reverse to double the inscribed angle 42 to get 84.
-------------------
For problem 3, we need to determine angle DEP. But first, we'll need Thales Theorem which is a special case of the inscribed angle theorem. This theorem states that if you have a semicircle, then any inscribed angle will always be 90 degrees. This is a handy way to form 90 degree angles if all you have is a compass and straightedge.
This all means that angle DEF is a right angle and 90 degrees.
So,
(angle DEP) + (angle PEF) = angle DEF
(angle DEP) + (35) = 90
angle DEP = 90 - 35
angle DEP = 55
The inscribed angle DEP cuts off the arc we want to find. Using the inscribed angle theorem, we double 55 to get 110 which is the measure of minor arc FD.
solve for r in the parallelogram
Help me plsssssssssssssssss
Answer:
e tenta de novo fazer a questãotenta rever o conteudo onde vc estudou isso
Step-by-step explanation:
what is the area of a circle with a radius of 4 inches?
The formula for the volume of a cylinder is V=pi*r^2h. The cylinder to the right has an exact volume of 360x cubic meters. Find it's height.
Answer:
12.7342
Step-by-step explanation:
V=360
d=6
r=1/2*d=3
r^2=9
360/pi=114.592
114.592/9=12.7342
How many solutions does the system of linear equations have?
y = 34x + 12
y = 43x
Answer:
x=4/3 and y=172/3
Step-by-step explanation:
hope this helps!
Pat volunteered to bake 80 biscuits for a family reunion breakfast. She plans to bake 8 biscuits in each pan. Which number sentence can be used to find p, the number of pans of biscuits that she will need to bake?
Answer: 10 pans
Step-by-step explanation:
Step 1:
If the number of biscuits needed= 80
Step 2:
And the number of biscuits on each pan= 8
Step 3:
Then the number of pans needed= 80 ÷ 8
Answer: 80 ÷ 8 = 10pans
10.
4+y=-3 and x-3y=-18