Answer:
Step-by-step explanation:
[1] 5x + 2y = 4
[2] 3x + 6y = -12
Graphic Representation of the Equations :
2y + 5x = 4 6y + 3x = -12
// Solve equation [2] for the variable y
[2] 6y = -3x - 12
[2] y = -x/2 - 2
// Plug this in for variable y in equation [1]
[1] 5x + 2•(-x /2-2) = 4
[1] 4x = 8
// Solve equation [1] for the variable x
[1] 4x = 8
[1] x = 2
// By now we know this much :
x = 2
y = -x/2-2
// Use the x value to solve for y
y = -(/2)(2)-2 = -3
can someone answer my question????i need help i’m already failing i’ll give brainlist and points:/
ILL MARK AS BRAINLIEST
Mrs. Zahid bought 6 bouquets at $ m each, and 8 packs of chocolates at $ ‘n’ each. She had $(2m + 5n) left. Find the amount of money she had at first.
Answer:
$(8m + 13n)
Step-by-step explanation:
Given that :
Total Cost of 6 bouquet = 6m
Total cost of 8 chocolate = 8n
Total amount spent = $(6m + 8n)
Total amount left = $(2m + 5n)
Hence, amount had at first :
Total amount. Spent + total amount. Left
(6m + 8n) + (2m + 5n)
(6m + 2m + 8n + 5n)
$(8m + 13n)
Order the numbers from least to greatest 3/10, 0.34, 27%, 3/8
Answer:
3/10,3/8,27%,0.34
Step-by-step explanation:
Answer:
27%, 3/10, 0.34, 3/8
Step-by-step explanation:
I just made them all decimals (same as percent)
3/10=0.30
3/8= 0.375
hope this helps pls mark brainleist
Help plz
Simplify.
8u+9v+3u−5v
11u + 14v
15uv
11u + 4v
5u + 4v
Answer:
The answer is 11u + 4v
Step-by-step explanation:
Find the slope of the line that passes through each of the following pairs of points:
(-1,4) and (3,-8)
Answer:
-12/4
Step-by-step explanation:
Use the slope formula
y2-y1. -8-4
---------- ______ = -12/4
x2-x1. 3-(-1)
Calculate the number in the middle of 1.5 and 7.1
what 50 precent of 7
Answer:
3.5
7 divided by 50=3.5
3.5x2=7
Step-by-step explanation:
6th grade math help!!
I think the answer might be D. If its greatest to least. I'm pretty sure it is D though. There is no answer for least to greatest in the correct order.
Answer:
B
Step-by-step explanation:
3/5 < 13/20 < 33/50 < 51/75 < 18/25
USING THE GRAPH DETERMINE THE COORDINATES OF THE X INTERCEPT OF THE PARABLOA
Answer: this parabola has 2 x intercepts witch are -4,0 and -8,0
Step-by-step explanation: an x intercept is when y is 0
list the factors of 5i^2+12i−32 i need help fast
Answer:
Step-by-step explanation:
5i² + 12i - 32i = 5i² - 20i
= 5i² - (5*4*i)
= 5i(i - 4)
15. Geoff can mow an entire lawn of 450 square feet in 30 minutes. Assuming he mows at a constant rate, write the linear equation that represents the situation
Answer:
y=15x
Assuming he is mowing at a constant rate it would be 15 square feet per minute.
Step-by-step explanation:
.The measures of the angles of a triangle are in the extended ratio 6: 1: 5. What is the measure of the largest angle?
Answer:
90
Step-by-step explanation:
Ratio = 6 : 1 : 5
Angles are 6x ,x , 5x
Sum of all the angles of the triangle = 180
6x +x +5x = 180
12x = 180
x = 180/12
x = 15
Largest angle = 6x = 6*15 = 90
can anyone please help me with this
Answer: I’m not very smart you don’t want my help
Step-by-step explanation:
A car travles at a speed of 44mph for 15 minutes. Calculate how far it travles.
Answer:
11 miles
Step-by-step explanation:
Answer:
11 m
Step-by-step explanation:
Speed = 44 mph
Time = 15 minutes = 15/60 = 1/4 hour
Distance = Speed * time
= 44 * [tex]\frac{1}{4}[/tex]
= 11 m
plzzzzzzzz help A.-9 B.-16 C.0 D.16
b
−16
c
0
d
16
Answer:
D. 16
Step-by-step explanation:
15 Brainly Points:
The Scenario:
The Powerball Lottery jackpot reaches 1.5 billion dollars, and Jeffrey decides to spend some money each week on lottery tickets. He puts some money in a new bank account and withdrawals the same amount once a week to try his luck at winning the jackpot. After three straight weeks of no luck, Jeffrey has $205 left in his account. After twelve total weeks, he still hasn’t won a thing and has $160 left to spend.
Karen, on the other hand, knows the odds of winning are almost impossible, and decides to start a savings account instead at the same time as Jeffrey. Karen consistently deposits $7 each week into her account, and after seven weeks has a total savings of $89. Unfortunately, Karen’s account does not earn any interest due to the extremely low interest rate.
a) Write an equation that models how much money is in Jeffrey’s account at any given week. Show all work in the space below. You can type your work, or insert a picture of hand-written work.
b) Write an equation that models how much money is in Karen’s account at any given week. Show all work in the space below. You can type your work, or insert a picture of hand-written work
c) Show algebraically when Jeffrey and Karen will have the same amount of money in their accounts. Show all steps.
d) Show algebraically when Jeffrey will run out of money, assuming he never actually wins anything. Show all steps.
What is the value of x in the representation below
3,7,-3,-7
Answer:
-3
Step-by-step explanation:
Let's rewrite it as an equation
3*x + 2*1 = 7*(-1)
3x + 2 = -7
3x = -9
x = -3
Evaluate the following expression. What is the answer?
-8 x (-10) - 7 x 1/-1
Answer:
log (8)
log 13 (28)
log (1/2)
Step-by-step explanation:
Members of a soccer team raised $1719 to go to a tournament. They rented a bus for
$1051.50 and budgeted $44.50 per player for meals. Write and solve an equation
which can be used to determine z, the number of players the team can bring to the
tournament.
Answer:
44.5x + 1051.5 = 1719
x = 15
Step-by-step explanation:
DeltaMath
The number of players the team can bring to the tournament is 15.
Given:
The total amount of money raised by the soccer team = $1719
Amount to rent the bus = $1051.50
Amount budgeted for each player's meal = $44.50
To find:
Equation and the number of players the team can bring to the tournament
Solution:
The number of players the team can bring to the tournament = z
Amount budgeted for each player's meal = $44.50
Total amount needed for z number of players' meals = $44.50z
Amount to rent the bus = $1051.50
The total amount of money raised by the soccer team = $1719
The equation for numbers of players will be written as:
[tex]\$44.50z+ \$1051.50= \$1719\\\$44.50z= \$1719- \$1051.50\\\$44.50z=\$667.50\\z=\frac{\$667.50}{\$44.50}=15[/tex]
The number of players the team can bring to the tournament is 15.
Learn more about solving equations here:
https://brainly.com/question/12825068?referrer=searchResults
https://brainly.com/question/16199330?referrer=searchResults
PLEASE HEEEEEEEEEEEEEEEEEELP
Which is and equation of the line with slope 0 and passing through the point at (-2,3)
Answer: y = 3
Step-by-step explanation:
Any horizontal line parallel to the x-axis has a zero slope. The horizontal line passing through (-2 ,3) has equation y = 3 as it passes through all points in the plane with a y-coordinate of 3, as may be seen in the graph
3) In Carter's math class, 20\% of students earned an A on a test. If there were 30 student in the class, how many did not get an A.
Answer:
24 students did NOT get an A
Step-by-step explanation:
30x.20=6
30-6=24
Compare: -9 __-1
using <, > =
Answer:
-9 < -1
Step-by-step explanation:
-9 is a lesser value than -1. On the number line, -9 appears more so to the left than -1.
Find the surface area of the net.
Answer:
700
Step-by-step explanation:
5 x 20= 100
5 x 20= 100
10 x 20= 200
10 x 20= 200
5 x 10= 50
5 x 10= 50
100+100+200+200+50+50=700
answer to (4f+1)–(4f+1)
Answer:
0
Step-by-step explanation:
subtracting like terms
The function f (x) = 4(3) can be used to determine the number of
bacteria in a petri dish after x weeks. How much bacteria will there be in 4
weeks?
Label ABC with the following information.
BC = 38
AC = 50
Find m/C.
The diameter of a circle is 16 centimeters.how would you calculate the area
Answer:
201.06
Step-by-step explanation:
A=πr2
R= 16/2= 4cm
A= 22/7 x 4 x 4
A= 201.06
for brainliest. PLEASE HELP!!
Answer:
a
Step-by-step explanation:
Answer:
Answer A
Step-by-step explanation:
Good luck! Please consider awarding Brainliest! ^<^
Hi, can someone help me with my math homework? I just need help with B.
Answer:
8
Step-by-step explanation:
========================================================
Explanation:
Let's convert the mixed number 5 & 1/3 to an improper fraction.
The formula to use is
a & b/c = (a*c + b)/c
So,
a & b/c = (a*c + b)/c
5 & 1/3 = (5*3 + 1)/3
5 & 1/3 = 16/3
Imagine you had 16 pieces of candy, and imagine you wanted to divide that up amongst 3 friends. Each friend would get 15/3 = 5 whole pieces. There would be 1 candy left over. The 5 and 1 help then form the 5 & 1/3. So this is one way to visualize how 5 & 1/3 is the same as 16/3.
Another way to see why this works is to note how 16/3 = 5.333 approximately. The '5' before the decimal point is the whole part of the mixed number 5 & 1/3; the decimal portion 0.333 is the approximate value of the fractional part 1/3.
------------------
The total length of fencing needed is 16/3 yards. Each section is 2/3 of a yard long. Since both denominators are "thirds", we can ignore them. An equivalent problem is this: "He needs 16 yards of fencing and each section is 2 yards long"
Based on the new problem without fractions involved, we can see that he'll need 16/2 = 8 sections in total.
You should find that dividing (16/3) over (2/3) will lead to 8 as well. You could say this:
(16/3) divide (2/3) = (16/3)*(3/2) = (16*3)/(3*2) = 48/6 = 8
-------------------
An alternative method:
Let's start with 2/3 of a yard. That doubles to 4/3 which is the same as 1 & 1/3. Think of it as 4/3 = (3+1)/3 = 3/3+1/3 = 1+1/3 = 1 & 1/3.
Next, we'll double 1 & 1/3 to land on 2 & 2/3. You simply multiply each '1' by 2 to end up with those '2's shown.
Now we'll double 2 & 2/3 like so:
2*(2 & 2/3) = 2*(2 + 2/3) = 4 + 4/3 = 4 + (1+1/3) = 5 + 1/3 = 5 & 1/3
The act of doubling exactly three times leads to us ultimately multiplying by 2*2*2 = 8, so he needs 8 sections that are each 2/3 of a yard long.
-------------------
Whichever method you prefer, the final answer is 8 sections.