Answers
Answer:
use math
Step-by-step explanation:
Related Questions
A student usually save $20 a month.He would like reach a goal $350 in 12 months
Answers
he will need to save 30 dollars a month
Step-by-step explanation:
What is 2 x 2 x 2 x 2 x 2 x 2 x 2 is exponet form
Answers
Answer:
2^7
Step-by-step explanation:
Answer:
2^7
Step-by-step explanation:
2 to the 7th power because there are 7 2s in the whole equation
Also, 2*2*2*2*2*2*2 is 128, which is 2^7
A cashier works 40 hours each week, earns $7.50 per hour, and works 50 weeks each year
Answers
Answer:
the cashier would have 15000 dollars at the end of the year.
Step-by-step explanation:
is that what you were asking?
Simpily the expression below: 2(4x + 5y)
Answers
Answer: 8x+10y
Step-by-step explanation:
2(4x)= 8x
2(5y)= 10y
8x+10y
What is the domain of the function? {(-3,-9), (7,9), (9, 1), (7,3)} Colleen wrote her answer as (-3,7,7,9) and she got it marked WRONG! What did she do wrong?
Answers
Answer: added
Step-by-step explanation:
PLZZZHELP
ill mark brainliest
Answers
Answer:
[tex]y=\frac{x+2}{4}[/tex] or y = 0.25x + 0.5
Step-by-step explanation:
You need to try change the subject from x to y.
x = 4y - 2
We first move -2 to the left, making the equation
x + 2 = 4y i.e.
4y = x + 2
We then divide both sides by 4.
[tex]y=\frac{x+2}{4}[/tex] or y = 0.25x + 0.5
We now have successfully made y the subject, and effectively solving the equation.
Solving systems of equation using elimination
1)2x+2y = 8
x – 2y = 4
2)x+y=8
x-y=4
3)2x+2y=4
x-y=4
4)2x+2y=4
x-y=4
5)x+2y=8
x+3y=4
I need the answer for each problem. Please help is due in 30 minutes!
Answers
Answer:
2x+2y = 8
x – 2y = 4
3x=12
x=12/3=4
x=4
2x+2y=8
2(4) + 2y = 8
8+2y = 8
2y=8-8
2y=0
y=0/2=0
2(4)+2(0)=8
8+0=8
x+y=8
x-y=4
2x=12
x=12/2=6
6+y=8
y=8-6=2
6+2=8
2x+2y=4
x-y=4
2x+2y=4
2(x-y=4)
2x+2y=4
2x-2y=8
4x=12
x=12/4=3
2(3)+2y=4
6+2y=4
2y=4-6
2y=-2
y=-2/2=-1
2(3)+2(-1)=4
6+-2=4
x+2y=8
-(x+3y=4)
x+2y=8
-x-3y=-4
-1y=4
y=4/-1=-4
x+2(-4)=8
x+-8=8
x=8+8=16
3x-9=7x+14 solve for x
Answers
Answer:
x= - 23/4
Step-by-step explanation:
Add 9 to both sides of the equation:
3x -9 = 7x +14
3x- 9 + 9 = 7x +14 +9
Simplify:
3x -9 + 9 = 7x +14 +9
3x = 7x +14 +9
3x =7x +14 +9
Subtract 7x from both sides of the equation:
3x= 7x +23
3x -7x = 7x +23 - 7x
Simplify Again:
3x -7x = 7x +23 -7x
-4x =23
Combine like terms:
-4x =23
Divide both sides of the equation by the same terms:
14x/ 14 = 23/ -4
Cancel terms that are both the numerator and the denominator:
x= - 23/- 4
Answer:
x= - 23/4
There were 20 questions on an exam. You answered 40% of them incorrectly. How many did you answer incorrectly?
Answers
20 * 0.40 = 8
Solution: you answered 8 incorrectly
Answer: 4
Step-by-step explanation: 20-10=10 which is %50. 20-16=4
is 5y=7x+6 linear or nonlinear
Answers
Answer:
Linear
Step-by-step explanation:
5y=7x+6 is linear equation in two variables.
Evaluate the function:
f(x)=x2−4x, find f(−3)
Answers
Answer:
f(-3) = 21
Step-by-step explanation:
To solve this, you can replace all x's with -3 and then solve to find the answer.
f(x) = x^2 - 4x
f(-3) = -3^2 - 4(-3)
f(-3) = 9 - (-12)
f(-3) = 21
I hope this helps!
1. Ryan and Rachel attended the weekend games at the neighborhood stadium and bought some food at the stands Ryan paid $7.10 for 3 corndogs and 1 coke Rachel paid $7.20 for 2 corndogs and 2 cokes. How much is each corndog?
Please help :( I’ll give you brainiest ♡
Answers
Answer:
$1.75
Step-by-step explanation:
Set up a system of equations where x is the cost of a corndog and y is the cost of a coke:
3x + y = 7.1
2x + 2y = 7.2
Solve by elimination by multiplying the top equation by -2
-6x - 2y = -14.2
2x + 2y = 7.2
Add them together:
-4x = -7
x = 1.75
So, the cost of one corndog is $1.75
Sorry I tried doe
(The answer I got would be in the negatives, I don't think that would be correct)
Help I need the answer
Answers
Answer:
Step-by-step explanation:
The graphy has got a negative slope.. running down hill.. and by 4
sooo... the last choice looks good
What is the constant for 5c2+7d
Answers
Answer:
2
Step-by-step explanation:
5 and 7 are the coefficients if you need them
select the procedure that can be used to show the converse of the pythagorean theorem using side lengths chosen from 6cm, 9cm, 12cm, and 15cm
Answers
Answer: Answers to choose from????????????
Step-by-step explanation:
Pls help me ASAP!
Evaluate the following
a: |8| - 9 =
b: |8 - 9| =
Answers
Answer:
a = -1
b= 1
Step-by-step explanation:
8's absolute value is 8, so 8 - 9 is -1 but 8-9 = -1 and since the answer is in the absolute value bars, -1's absolute value is 1, so the answer will be 1
but in a, only 8 is in the absolute value bars, not the complete answer
10. Keith has 7.8 ounces of tuna salad. If
he makes 3 sandwiches with an equal
amount of tuna on each, how much tuna
does he put on each one?
Answers
Answer:2.6 ounces per sandwich
Step-by-step explanation: 7.8/3= 2.6
Can someone help me pleas
Answers
= x+2x+16
= 3x +16
answer: 3x + 16 (color it orange lol)
Evaluate the function: f(x)=x2+2x, find f(−1)
Answers
Answer:
[tex]f( - 1) = - 1[/tex]
Step-by-step explanation:
[tex]f(x) = {x}^{2} + 2x[/tex]
Substitute x = -1 in the equation.
[tex]f( - 1) = {( - 1)}^{2} + 2( - 1) \\ f( - 1) = 1 - 2 \\ f( - 1) = - 1[/tex]
Write in standard form.
a) 2 4 b) 10 3 c) 3 5 d) 7 3 e) 2 8 f) 4
Answers
Answer:
2 4 2 8 3 7 3 10 4 hope it will work
Andreas is running a race 13.1 long he already ran 1.1 miles What equation and solution correctly restore send how many miles m Andre's has lag to run
Answers
Answer:
okokokokokokokokokolkokokok
Using addition, subtraction, multiplication, division, exponents, grouping symbols, and at least one positive and negative number, make an expression equal to 10 (no repeating numbers)
Answers
Answer:
2 + 3 (1) + (10 / 5)^2 + 7 - 6 = 10
Step-by-step explanation:
2 + 3 (1) + (10 / 5)^2 + 7 - 6
= 2 + 3 + (2)^2 + 7 - 6
= 2 + 3 + 4 + 7 - 6
= 10
Two types of tickets are sold to a play. Floor seats cost $45 each and balcony seats cost $25 each. A play sells 107 tickets and makes a total of $3,375. How many of each type of ticket are sold?
Answers
Answer:
floor seats=35
and the balcony seats =72
Step-by-step explanation:
Step one
given data
let the floor seats be x
and the balcony seats be y
so
45x+25y=3375-------1
x+y= 107----------------2
from 2, x= 107-y
put x= 107-y in 1
45(107-y)+25y=3375
4815-45y+25y=3375
collect like terms
-45y+25y= 3375-4815
-20y=-1440
divide both sides by -20
y=72
put y= 72 in eqn 2
x+72=107
x=107-72
x=35
3 + x = 18 please help!!!!!!!!!!
Answers
Answer:
X=15
all you have to do is subtract 3 from 18 to get x
Step-by-step explanation:
3 + x = 18
x=18-3
x=15
Hope this helps
4
1. In the equation y = x + 5, what is the slope and
=
y-intercept?
m =
b=
Answers
Answer:
m = [tex] \frac{4}{3} [/tex]
b = 5
PLEASE HELP!! I’ve got a car with an internal volume of 12,000 L. If I drive my car into the river and it implodes, what will be the volume of the gas when the pressure goes from 760 mmHg to 141.82 kPa?
Answers
Answer:
V2 = 8571.43L
Step-by-step explanation:
To solve for the V2, We can use V2 = P1V1 / P2
= 1.0 atm × 12,000 L / 1.4 atm
= 12,000 L / 1.4 atm
= 8571.43 L
A square has a perimeter of 8x - 10 units, Each side is x units long. What is the value of x?
Answers
Answer:
They want you to recognize that you can make 2 equations that both are equal to P.... the perimeter.... and then set them equal to each other and solve for x .. as below
Step-by-step explanation:
P = 8x-10
P = 4x
4x = 8x-10
10 = 4x
2.5 = x
Express the ratio 14 inches to 3 feet as a fraction in simplest form
Answers
Evaluate b/a−1.2 when a=4 and b=12
Answers
Answer:
3-1.2=1.8
Step-by-step explanation:
12/4=3-1.2=1.8
34 (7)-7
Need helpppp
Answers
Answer:
231
Step-by-step explanation:
