Answers
Answer:
[tex]x = 10[/tex]
Is the right answer.
Related Questions
If 5x + y = 20 and 10x - 2y = 50 are two linear equations in two variables. Find the value of x and y.
x = 1, y = 1
x = 2, y = 1/2
x = 9/2, y = -5/2
x = 1, y = 5/2
Answers
Answer:
x = 9/2, y = -5/2
Step-by-step explanation:
5x + y = 20
10x - 2y = 50
There's multiple ways to do this, but I will solve using substitution.
Isolate variable y on the first equation.
5x + y = 20
y = 20 - 5x
Substitute the value of y for 20 - 5x in the second equation.
10x - 2(20 - 5x) = 50
Use distributive property:
10x - 40 + 10x = 50
Combine like terms:
20x - 40 = 50
20x = 90
x = 90/20
x = 9/2
Substitute x for 9/2 and solve for y:
y = 20 - 5(9/2)
y = 20 - 45/2
y = 40/2 - 45/2
y = -5/2
Answer:
x =9/2, y = -5/2
Step-by-step explanation:
5(9/2) + -(5/2)= 20
45/2 + -5/2 = 20
40/2 = 20
10(9/2) - 2(-5/2) = 50
90/2 + 10/2 = 50
45 + 5 = 50
hlp plzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz
Answers
Answer:
Step-by-step explanation:
A B or E
I also have trouble with this sry :(
I need help with this
Answers
Answer:
never, never, sometime, sometimes, and always.
Step-by-step explanation:
I'm smart lol
what is cos 80 divided by the squareroot of tan 25 without using a mathematic table or a calculator
Answers
Answer:
here it is
Step-by-step explanation:
cos 80/tan 25
by phone calculator
can someone help me with my homework?
(I need to show my work btw)
here’s the question :
At the Pokemart, you bought 3 potions for $20 and 1
revival for $80. How did the withdrawals change the
amount in your account?
Answers
Answer:
You lost $140.
Step-by-step explanation:
3*20=60
60+80=$140 so the total amount spent is $140.
Since you're spending money the amount in your account is going to drop by $140.
if JK is tangent to circle L, find x
Answers
Answer:
if JK is tangent that means it creates 90° with X that is the ray of the circonference.
to find X first you have to find L and to do so you use the inverse of pythagorean theorem cause you have the hypotenouse :
sqr( 25^2-1^2) = 24.97
now divide by 2 and you have 12.49
Below are two parallel lines with a third line intersecting them.
Answers
Determine the combined surface area of a cube with an edge that is 3.5 cm long and a cube with an edge that is 2 cm long.
Answers
Answer:
97.5
Step-by-step explanation:
3.5cm cube surface area:
3.5*3.5*6 (the 6 faces of the cube) =
73.5
2cm cube surface area:
2*2*6 =
24
combined surface area:
73.5+24=
97.5
Please answer these :
p + 3 = - 12
m - 11 = 1
Answers
Answer:
12,-15
Step-by-step explanation:
2. How many zeros does this parabola have?
Answers
Math is my problem help me
Answers
Answer:
on the second one you put 5 basketballs and four baseballs
on the third one you in think your gonna put the same thing as the first one
I am not sure about the last sorry in advance
What would y equal for this question
Answers
Answer:
12
Step-by-step explanation:
When looking at triangles it's always important to remember what the ratios are to parts of triangles. In the case of this triangle let's give the value 24 the variable of E. In every scenario in which Y is positioned above 24 or E, the answer is always E/2=y, or 24/2=y ---> 12.
y / 24 = 12 / 12 + 18
y / 24 = 12 / 30
y / 24 = 2 × 6 / 5 × 6
y / 24 = 2 / 5
y = 24 × 2 / 5
y = 48 / 5
y = 96 / 10
y = 9.6
2*3*5*11+x*2 = 662
What's x?
Answers
Answer:
x = 166
Step-by-step explanation:
2 * 3 * 5 * 11 + (x * 2) =
6 * 5 * 11 + (x * 2) =
30 * 11 + (x * 2) =
330 + (x * 2) =
330 + (166 * 2) =
= 662
So, the answer is 166.
Hope this helps! :)
write the following as
t = _____
p/q = q/t + 1
Answers
Answer:
t = 2q²/p
Step-by-step explanation:
subtract 1 from each side to get:
p/q - 1 = q/t
multiply each side by t/q to get:
(tp/q²) - 1 = 1
add 1 to each side to get:
tp/q² = 2
cross-multiply to get:
tp = 2q²
divide each side by p to get:
t = 2q²/p
The difference of twice a number and five is three. Find the number
Answers
Answer:
The number is 4.
The step describe to solve the problem is: add five and then multiply by
Step-by-step explanation:
Let the number be x.
As per the given condition as:
The difference of twice a number and five is three.
"Twice a number" means
"difference of twice a number and five" means
therefore, the translation of the given word problem to an equation is:
Now, solve the equation :
Addition Property of equality states that you add the same number to both sides of an equation.
Add 5 to both sides of an equation we get;
2x-5+5=3+5
Simplify:
2x = 8
Multiplication property of equality states that you multiply the same number to both sides of an equation.
Multiply by both sides we get;
Simplify:
x = 4
The steps which describe to solve the problem is: add five and then multiply by
Therefore, the number x = 4
4 the answer is four as 4×2=8 and 8-5=3
help pls D:
9. The table represents some points on a linear
function. Which situation can be modeled by this
function?
X
3
5
7
11
Y
228
380
532
836
A. The cost of buying number of concert tickets for
$76 each.
B. The number of pages y that can be read in 76
minutes.
C. The number of gallons of fuel xthat can be used to
travel 228 miles.
D. The amount of money spent from a savings
account with y dollars.
Answers
Answer:
A
Step-by-step explanation:
a little help??????????????
Answers
Answer:
b for the first one and A for the second
Step-by-step explanation:
Answer:
well it seems the first one is B. The second one is A
Step-by-step explanation:
hope it helps
have a great day
2 Which is a factor of x² + 5x – 24?
1) (x + 4)
2) (x - 4)
3) (x + 3)
4) (x – 3)
Answers
Answer:
(X+3)
Step-by-step explanation:
A group of 8 friends shared all the sports cards in 3 packages. Each package contained 1,400 sports cards. Each friend received the same number of sports cards.
How many sports cards did each friend receive?
Answers
Answer:
i think it is 525 cards.
Step-by-step explanation:
because 3 packages = 1400 sport cards
3 x 1400 = 4200
4200 divided by 8 = 525 cards.
How do you find the volume?
Answers
Answer:
In math, volume is the amount of space in a certain 3D object. For instance, a fish tank has 3 feet in length, 1 foot in width and two feet in height. To find the volume, you multiply length times width times height
Step-by-step explanation:
A movie theater sells morning tickets (m) for $4 and regular tickets (e) for $6. During one week, the theater earned $6000. The theater sold 890 more regular tickets than morning tickets.
Write a system of liner equation to represent this situation. (Solve by using Systems by Substitution)
Answers
Answer:
Step-by-step explanation:
Answer:
m = 66 & e = 956
Step-by-step explanation:
Create your equations:
$4m + $6e = $6000
m + 890 = e
Substitute/solve for morning tickets:
$4m + $6e = $6000 <-- m + 890 = e
$4m + $6(m + 890) = $6000
$4m + $6m + $5340 = $6000
$10m = $6000 - $5340
m = $660/$10
m = 66 morning tickets
Solve for Regular tickets:
m + 890 = e <--- m = 66
66 + 890 = 956
e = 956 regular tickets
Double check work:
$4m + $6e = $6000
$4(66) + $6(956) = $6000
Leave a like and mark brainliest if you like this answer
Simplify the expression
Answers
Answer:
7a^2b-4ab^2-ab+10a
Step-by-step explanation:
(12a^2b+8a-5a^2b+2ab)-(4ab^2+6ab-2a-3ab)
12a^2b+8a-5a^2b+2ab-4ab^2-6ab+2a+3ab
(12a^2b-5a^2b)+(-4ab^2)+(2ab+3ab-6ab)+(8a+2a)
7a^2b-4ab^2-ab+10a
Kareem works mowing lawns and babysitting. He earns $8.60 an hour for mowing and $8.10 an hour for babysitting. How much will he earn for 7 hours of mowing and 5 hours of babysitting?
Answers
Answer:
$100.7
Step-by-step explanation:
(8.60) x 7 = 60.2
(8.10) x 5 = 40.5
60.2 + 40.5 = 100.7
Answer:
$100.70
Step-by-step explanation:
x=8.60(7)+8.10(5)
x=100.7
Lila is making 1/4 of a recipe for a bake sale. The original recipe calls for 2/3 cups of sugar. How much sugar does Lila need to
complete her recipe?
Answers
Answer:
Step-by-step explanation:
1/4 of 2/3 is just (1/4) / (2/3) or (1/4)(3/2)
1/4 * 3/2= 3/8
She needs to use 3/8 of a cup
The sugar needed by Lila to make 1 / 4 of a recipe is 1 / 6 of the total sugar needed to complete her recipe.
What is fraction?A fraction is a percentage of a whole. This entire sentence could be referring to a single location or a collection of locations. The English word "fraction" originates from the Latin word "fraction," which means "to break." As the first society to comprehend fractions, the Egyptians used fractions to solve a number of mathematical problems, including the distribution of food and resources and the absence of a metal currency.
Given:
The sugar quantity in the original recipe = 2 / 3
If Lila is making 1 / 4 of a recipe, so she needs 1/ 4 of the total sugar in the recipe,
The sugar needed by Lila = 1 / 4 of 2 / 3
The sugar needed by Lila = 1 / 4 × 2 / 3,
The sugar needed by Lila = 1 / 6 of the total sugar needed in the recipe.
Therefore, the sugar needed by Lila to make 1 / 4 of a recipe is 1 / 6 of the total sugar needed in the recipe.
To know more about fractions:
https://brainly.com/question/61672
#SPJ5
(a) Jane pumped 54 gallons of water out of her pool. This was done over a period of 9 minutes at
a constant rate. What was the change in the amount of water in the pool each minute?
gallons
Answers
Step-by-step explanation:
From the question, Elsa pumped 18 gallons of water out of her pool and this was done over a period of 3 minutes at a constant rate. Since it is done at a content rate, to get the change in the amount of water in the pool each minute, we divide 18 gallons by 3. This can be written mathematically as:
= 18 gallons ÷ 3
= 6 gallons
Change = -6
The change in the amount of water in the pool each minute will be -6gallons hope this helps
Answer:
The change in the amount of water in the pool each minute was 6 gallons.
Step-by-step explanation:
You divide 54 gallons by 9 minutes to get the number of gallons per minute.
54/9 = 6
Consider this exponential equation:
f(x) = 5(3)^x
Identify the following:
Domain
Range
Y-intercept
Answers
Step-by-step explanation:
F( x ) = 5 (3) ^ x
Y intercept
Let x = 0
f(0) = 5× 3 ^ 0
f(0 = 5 × 1
f(0) = 5
X intercept
let y = o
0 = 5 × 3 ^x
No x intercept/ zero
therefore
Vertical intercept (0; 5)
Domain XER
▪︎this refer to the values of X
suppose a city with population 100,000 has been growing a rate of 4% per year. if this rate continues find the population of this city in 10 years
Answers
Answer:
f(x) = a(1 + r)x f(x) = 100000(1+0.04)^10 = 148,024 I believe
Step-by-step explanation:
6 x 10^ is how many times as large as 3 x 10^3?
Answers
Answer: 1800000000
Step-by-step explanation:
Answer:
200 Times as large
Step-by-step explanation:
NO LINKSS!! But pls help me What is the value of X?
70°
35°
X
Answers
Answer:
x=75
I hope it's helps you
what's the perimeter of the square of 5x+2
Answers
Answer:
10x + 8
Step-by-step explanation:
If the length of one side is 5x + 2, then the perimeter of the square is
4(5x + 2) = 10x + 8