Answer:
x = 3
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to RightEquality Properties
Step-by-step explanation:
Step 1: Define Equation
4x + 9 = 2x + 15
Step 2: Solve for x
Subtract 2x on both sides: 2x + 9 = 15Subtract 9 on both sides: 2x = 6Divide 2 on both sides: x = 3Step 3: Check
Plug in x into the original equation to verify it's a solution.
Substitute in x: 4(3) + 9 = 2(3) + 15Multiply: 12 + 9 = 6 + 15Add: 21 = 21Here we see that 21 does indeed equal 21.
∴ x = 3 is the solution to the equation.
Cheddar cheese costs $4.25 per pound. Which equation best represents y, the total cost of x pounds of cheddar
cheese?
A. x = 4.25 + y
B. x = 4.25y
C. y = 4.25+ x
D. y = 4.25x
I will MARK brainlist!
Answer:
D
Step-by-step explanation:
4.25 × the amount of cheese you buy (x) equals the total cost (y)
Answer:
D. y = 4.25x
Step-by-step explanation:
You multiple the price per pound by the number of pounds. Can I have brainliest? Thanks!
What is 80% of 80?!? Pls help ASAP
Answer:
64
Step-by-step explanation:
Answer:
64
Step-by-step explanation:
80% * 80 = 64
PLEASE HELP! If I add five to a mystery number and then multiply the result by two, I get twenty four. Write an equation to solve for the mystery number, solve the equation and then check your answer.
Answer:
The mystery number is 7
Step-by-step explanation:
This is a very easy problem.
let the mystery number=x
2(x+5)=24
2x+10=24
2x=24-10
2x=14
x=7
To check the answer,
Add 5 to 7=12, multiply by 2=24
|-4 + 3| · 8.
iiiiiiiiiiiii nnnnnnnnnnneeeeeeeeeeeeeddddddddddd hhhhhhhheeeeeeelllllllllllllpppppppp nnnnnnnnnooooooowwwwwwwww!!!!!!!!!!!!!11
Answer:
8
Step-by-step explanation:
-4+3=-1
|-4+3|=1
|-4+3|•8=8
(|) the vertical line represent absolute value if it is a negative number inside the vertical lines it gives a positive number
Examples:
|-1|=1
|-4|=4
Hope you understand
Answer:
bruh are you seriously in 5th grade?
Step-by-step explanation:
Ez it's -1·8
25 is 10% of what number?
Answer: 40
Step-by-step explanation:
This is saying one-fourth, or 25% , of a number x , is equal to 10 . Therefore, 25% of 40 is 10
Answer:
250
Step-by-step explanation:
10%x10=100%
25x10=250
probably not the best explanation but I hope it helps!
Avery is making a necklace for her mothers birthday. She uses 1 1/20 strings of black beads and 1 4/5 more strings of gray beads than black beads. How many strings of gray beads did she use?
.
Answer:
She used 2 17/20 strings of grey beads
Step-by-step explanation:
Here, we want to know the number of grey beads used
To calculate this, we simply add up the black beads number with the number of grey beads
Mathematically, that will be;
1 1/20 + 1 4/5
= 21/20 + 9/5
= (21 + 36)/20
= 57/20 = 2 17/20
Ty can jump rope at a rate of 6 jumps every 3 seconds what is Ty's jump roping rate in jumps per minute
Answer: Ty can jump rope at 6:3 thats the ratio.
Step-by-step explanation:
You can burn an average of 200 to 300 calories in a mere 15 minutes workout with your jump rope. Everyone is different, but on average 10 – 25 Calories are Burned Jumping Rope every minute. Jumping rope can help you burn about 25% more calories per minute than running.
Which function is negative for the interval [–1, 1]? On a coordinate plane, a curved line with a minimum value of (negative 1, negative 2), crosses the x-axis at (negative 2.5, 0) and (0.5, 0), and the y-axis at (0, negative 1). On a coordinate plane, a curved line with a minimum value of (0, negative 2), crosses the x-axis at (negative 1.5, 0) and (1.5, 0). On a coordinate plane, a curved line with a maximum value of (0, 2) and a minimum value of (1.5, negative 2.75), crosses the x-axis at (negative 0.6, 0) and (0.6, 0). On a coordinate plane, a curved line with a maximum value of (negative 1.25, 4) and a minimum value of (1.5, negative 3.5), crosses the x-axis at (negative 1.75, 0), (0.75, 0), and (1.75, 0), and crosses the y-axis at (0, 2).
Answer:
As the x-values go to zero, the function's values go to positive infinity.
Step-by-step explanation:
also answer B
Answer: b
Step-by-step explanation:
Help will mark brainliest
Answer:
C. E = 9h
Step-by-step explanation:
Please mark brainliest.
4(x - 6)= 24
show your work
Answer:
12
Step-by-step explanation:
4(x-6)=24
4x-24=24
+24 +24
4x=48
x=12
please help.............
9515 1404 393
Answer:
(d) Reflexive Property of ≅; SSS
Step-by-step explanation:
There are no angles involved in the proof, so the SAS claims do not apply.
__
The symmetric property says ...
if A ≅ B, then B ≅ A
The reflexive property says ...
A ≅ A
In this case, the reflexive property is the one being invoked in the statement ...
AC ≅ AC
That, together with the claims of line 3 concludes the claim that all three sides are congruent to their corresponding counterparts. Hence the SSS postulate applies.
r/2+y=11
pleaseeee help!! i need the answer like rn
Answer:
r=99
Step-by-step explanation:
What is the corresponding side to ab? tu ru st rs
Answer:
RS
Step-by-step explanation:
RS is the corresponding side to AB
Answer:
RS
Step-by-step explanation:
Hope this helped have an amazing day!
Choose the number that is 5 more than a square number.
21
34
35
65
76
Answer:
21
Step-by-step explanation:
this requires practical assumption.
take 9 for example
5 more than 9 means 9 - 5 = 4
4 is a square number
21 = 21 - 5 = 16
16 is a square number
34 = 34 - 5 = 29
29 is not a square number
35 = 35 - 5 = 30
30 is not a square number
65 = 65 - 5 = 60
60 is not a square number
76 = 76 - 5 = 71
71 is not a square number
Mary used one big bag of flour. She baked four loaves of bread. Then, she used the remaining flour to make 48 muffins. How much flour was in the bag when Mary began? Plz help!!!! I have 20 minutes left
Answer is 11.
Step-by-step explanation:
Maria used two loaves of bread , One loaf is equal=2 1/4 cups so two becomes 2 ×2 1/4= 9/2
Maria makes the remaing 48 muffins of the flour left so,
One muffin is equal 3 1/4 cups so two becomes 2×3 1/4=13/2
Add both of them
9/2+13/2=11
Can someone write the process and solution please?
Answer:
A
Step-by-step explanation:
We can get this by simplifying the inequalities
3(x-4) ≤ 18
3x - 12 ≤ 18
3x ≤ 18 + 12
3x ≤ 30
x ≤ 30/3
x ≤ 10
Secondly;
2(x-1) ≥ 6
2x - 2 ≥ 6
2x ≥ 6 + 2
2x ≥ 8
x ≥ 4
So the possible answer that fits both cases is 9
12 won’t work as it is not less than 10; we need an answer that is less than 10 to satisfy the first inequality
Bianca set the thermostat in her house to 87°F, which was 13° warmer than the temperature outside. What temperature was it outside?
Confused.
Answer: 74 degrees Fahrenheit
Step-by-step explanation: the temperature outside was 13 degrees lower than 87 degrees, so 87 - 13 = 74
Answer:
74 degrees F
Step-by-step explanation:
Subtract the 87 - 13
This is because there are +13 degrees more than outside. So if you add 74 + 13 that were added by the thermostat, you get 87 degrees. Does it make sense?
Just subtract :)
MULTIPLY.....WILL MARK BRAINLIEST
x^2(-10x^2+1)
Answer:
Step-by-step explanation:
Distributive property: a(b + c) = a*b +a*c
[tex]a^{m}*a^{n}=a^{m+n}\\\\\\x^{2}(-10x^{2}+1)= x^{2}*(-10x^{2}) +x^{2}*1\\\\=-10x^{(2+2)}+ x^{2}\\\\= -10x^{4} + x^{2}[/tex]
I need help pls !!!!
Answer:
The answer is 49 pi cm2
Step-by-step explanation:
pi x 14^2
----------------
4
=153.93804
Answer:
The area of your circle is ≈ 15.6cm²
Step-by-step explanation:
A = Area
C = Circumference
Attached
Using the following formulas;
A=πr²
C=2πr
How are coordinate planes the same ????
22 points if u can answer
Answer: Its a trick question
Step-by-step explanation:
I did this yesterday
Answer:
They are the same because they all have an X-axis and a Y-axis
Step-by-step explanation:
sorry if im wrong lol
PLEASE HELP I WILL GIVE BRAINLIEST!!
Answer:
The answer to the chart is y=x-1
pls pls someone answer thissss asap...also I’d like the steps on how to do it as well pls and ty!!!
Answer:
v>19/6
Step-by-step explanation:
in the equation of a line y= mx + b the slope represented by the letter
Answer: m
Step-by-step explanation:
in y=mx+b, m is the slope and b is the y intercept.
Answer:
M
Step-by-step explanation:
The slope in y=mx+b is the letter M.
I NEED HELP WITH THIS
Answer:
Step-by-step explanation:
Four-thirds times the sum of a number and 8 is 24. What is the number?
ОА.
40
OB. 26
O C. 24
OD
10
Answer:
D, 10.
Step-by-step explanation:
10+8=18 4/3x18=24
Question 1
8 pts
You are shopping at Math-Mart and your total purchase is $80. What is the total cost if the
tax rate is 8%?
Answer:
86.40
Step-by-step explanation:
First you do 80 x 0.08 to get 6.4, then you add that to 80 to get 86.40 dollars
10x^3+34x^2+20x
Factor the trinomial
[tex]2x*(5x^{2} +17+10)[/tex] is the answer I think
Help me find this answer 40 points
Answer:
A
Step-by-step explanation:
The answer is up ahead
The sales tax rate in New Mexico is 5.125%. What will you pay for a $14.50 area rug in New Mexico after tax?
Answer:
15.243125
Step-by-step explanation:
we need to calculate how much would be the tax for 14.5$
so 14.5 * 5.125% = 0.743125
and then we will add that to 14.50
i dont feel like doing this i have to
Work out the probability of getting a 5. Give your answer as a fraction in its simplest form.
Answer:
1/6
Step-by-step explanation:
if you are talking about a dice roll, then the probability of getting anything is 1/6