Answer:
7*x+y
Step-by-step explanation:
7x is equal to 7*x
Josephine was asked to make a one-fiftieth scale model of the new water tower for her town. She constructed the model that is shown below.
A water tower has a height of 2.25 feet and diameter of 1.25 feet.
Not drawn to scale
What is the height of the town’s new water tower in feet? Round to the nearest whole number.
22 feet
40 feet
63 feet
113 feet
Answer:
D
Step-by-step explanation:
2.25x50=112.5
112.5 rounds up to 113, which is D
Answer:
33.75?
Step-by-step explanation:
2.25*15
(Take the=22/7)
curved surface area of cylinder with diameter 21cm and height 5cm.
Answer:
330cm²
Step-by-step explanation:
CSA of a cylinder = 2πrh
(r = d/2 = 21/2 = 10.5 cm)
Putting the values of 2πrh;
2 x 22/7 x 10.5 x 5
2 x 22 x 1.5 x 5 *(10.5/7 = 1.5)
330 cm²
can someone please help
Answer:
x = 10
z = 116
Step-by-step explanation:
12x - 58 = 62
x = 10
360 - 128 = 232
232 / 2 = 116
Answer:
x = 10
z = 116
Step-by-step explanation:
craig likes to collect records. last year he had 10 records in his collection. now he has 15 records. what is the percent increase of his collection?
Answer:
His collection increased in a 20%.
Step-by-step explanation:
If 100% represents 10 records, what percentage would be for 12 records?
x = 12 100% / 10 = 120%
So, if we subtract 120% - 100%, it's gonna result in a difference of 20%, which means that 12 represents a 20% more, or his collection increased in a 20%.
some one pleas help y=2x+3 y=-2x+15
Answer:
x = 3. y= 9
Step-by-step explanation:
2x +3 = -2x +15
4x = 12
x = 3
y 2(3) + 3 = 9
8. Two coins are flipped. What is the probability that both of the coins land heads up?
Answer:
1/4
Step-by-step explanation:
1/2 x 1/2
Step-by-step explanation:
The probability of getting heads on the toss of a coin is 0.5. If we consider all possible outcomes of the toss of two coins as shown, there is only one outcome of the four in which both coins have come up heads, so the probability of getting heads on both coins is 0.25.
Find the area of the trapezoid!
will give brainliest
Step-by-step explanation:
area=h(a+b)÷2
=2×1.1+3.4÷2
=4.5cm^2
The measures of two angles are 2x⁰ and (3x + 20)⁰. What is the measure of each angle if x = 14?
A. 48⁰, 42⁰
B. 28⁰, 62⁰
C. 36⁰, 62⁰
D. 48⁰, 28⁰
Answer:
b 28 and 62
Step-by-step explanation:
X is equal to 14 so other angle is 2x which is.2multiplied to X which gives 28degrees
X is equal to 14 and the other.angle is 3xplus 20 so 3x is 42 plus 20 gives 62
pls give me brainliest I need it to upgrade my rank
Answer:
b 28 and 62
Step-by-step explanation:
What is the solution to the inequality below?
√x>7
Answer:
x > 49
Step-by-step explanation:
We have the inequality Square root of x is greater than 7, to solve. We need to isolate x.
When having a square root, you need to raise the square root to its second power, with that, do the same to 7 on the other sides :
(Square root of x)^2 > 7^2
x > 49
Write the dimensions of a rectangular prism or cube and find the surface area. Explain.
PLEASE HELP ASAP THANKS SO MUCH
8. Aimi decided to spend her money and save some in the ratio of 3:2. If her total money is RM
7,500, find the amount of money she saves.
A. RM 4,500
B. RM 3,000
C. RM 2,000
D. RM 1,500
Step-by-step explanation:
2/5×7500
2×1500
3000
RM=3000
Find the missing values: f(5) f(9)
Answer:
F(5)= 22
F(9)= 34
Step-by-step explanation:
F(x)=3x+7
F(5)= 3(5)+7
F(5)= 15+7
F(5)= 22
F(9)= 3(9)+7
F(9)= 27+7
F(9)= 34
Solve the equation 3x +10=40.
x=
Answer:
x = 10
Step-by-step explanation:
3x + 10 = 40
which X in this case means 10. Hope this helps!
A square pyramid is shown. What is the surface area of the pyramid? Enter your answer in the box.
Answer:
The surface area of the square pyramid is 34.63cm².
Step-by-step explanation:
[tex]A=a^{2} +2a\sqrt{\frac{a^{2} }{4} +h^{2} } =3^{2} +2[/tex]×3×[tex]\sqrt{\frac{3^{2} }{4} +4^{2} }[/tex]≈34.63cm^2
Given f(x)=0.25(6)x, find f−1(x).
Answer:
f−1(x) = [tex]\frac{4x}{6}[/tex]
Step-by-step explanation:
f(x) = 0.25(6)x, find f−1(x).
f(x) = 0.25(6)x
f(x) = [tex]\frac{6}{4}[/tex]x = [tex]\frac{6x}{4}[/tex]
f(x) = y
y = [tex]\frac{6x}{4}[/tex]
Substitute y for an x & x for a y
x = [tex]\frac{6y}{4}[/tex]
Multiply both sides by 4
4( x ) = 4( [tex]\frac{6y}{4}[/tex] )
4x = 6y
Divide both sides by 6 to solve for y
[tex]\frac{4x}{6}[/tex] = y
y = [tex]\frac{4x}{6}[/tex]
so f−1(x) = [tex]\frac{4x}{6}[/tex]
Mai received a $70 gift card for a coffee store. She used it in buying coffee that cost $8.48 per pound. After buying the coffee, she had $27.60 left on her card. How many pounds of coffee did she buy?
Assessmen Tool
Alyssa received a $50 gift card and spent x dollars. Samantha received a $65 gift card and spent
three times as many dollars as Alyssa.
If Alyssa and Samantha now have the same amount of money on their gift cards, how much money
did Alyssa spend in dollars and cents?
F $13.00
G $3.75
H $15.00
0 $7.50
A grasshopper covered a distance of 6 yards in 10 equal hops How many yards did the grasshopper travel on each hop?
Answer:
0.6 yards
Step-by-step explanation:
6 yards/10 hops = 0.6 yards per hop
what are the 2 reasons that the Louisiana purchase caused a debate in the usa
It was a debate between the northerners and southerners (forgive my spelling). The northerners feared the addition of more slave states and a corresponding lack of reprenestation of their intrests in the North. For the southern slave holders, new western lands would be a boon (helpful) to enslaved people and the Louisiana purchase threatened to entrench and expand their suffering to western territories.
I got this on Khan Academy
A spider crawls across the floor at two meter per minute. How far can he make it in 5 minutes
Answer:
10 meters
Step-by-step explanation:
Answer:
ten meters
Step-by-step explanation:
2x5=10
Help pls QUICKK AND TY!
Answer:
Graph 1 is C
Graph 2 is A
Graph 3 is B
Graph 4 is D
Step-by-step explanation:
If there are more you need help with I am happy to help
Same-side interior angles in a parallelogram are congruent
Always True
Sometimes True
Never True
Find the value of x.
(Round to the nearest tenth as needed.)
Answer:
x ≈ 12.8
General Formulas and Concepts:
Pre-Algebra
Order of Operations: BPEMDAS
BracketsParenthesisExponentsMultiplicationDivisionAdditionSubtractionLeft to RightEquality Properties
Multiplication Property of EqualityDivision Property of EqualityAddition Property of EqualitySubtraction Property of EqualityTrigonometry
[Right Triangles Only] SOHCAHTOA[Right Triangles Only] tanθ = opposite over adjacentStep-by-step explanation:
Step 1: Define
Angle θ = 58°
Opposite Leg = x
Adjacent Leg = 8
Step 2: Solve for x
Substitute in variables [tangent]: tan58° = x/8[Multiplication Property of Equality] Isolate x: 8tan58° = xRewrite: x = 8tan58°Evaluate: x = 12.8027Round: x ≈ 12.8PLEASE ANSWER THIS QUESTION CORRECTLY, I’LL GIVE YOU BRANLIEST! PLEASEEE answer my other math questions if you solve this one, thank you.
Answer:
2.3,7,127
Step-by-step explanation:
a₁ = 2
a₂ = 2² - 1 = 3
a₃ = 2³ - 1 = 7
a₄ = 2⁷ - 1 = 127
Subtract : 13.257 from 25.8
Pls Someone Help
Answer:
12.543
Step-by-step explanation:
What is the value of x in the equation 1.5(x + 4) -3 = 4.5(x-2)
Answer:
The answer to this equations would be 1.3 repeated i included a image with how to go about working the problem out
The diameter of a basketball rim is 18 inches. What is the circumference of the rim?
Fernando cleans pools for the summer for $25 an hour plus a supply fee of $15.
Which equation models the cost for having Fernando clean a pool for x hours and how much will a 3-hour cleaning cost?
A. y=25x+15;90
B. y=(25+15)+x;43
C. y=15x+25;70
D. y=(25+15)x;120
Explanation:
Answer:
15x+25 ; 70
Step-by-step explanation:
Given that,
Fernando cleans pools for the summer for $25 an hour plus a supply fee of $15.
Here, $25 is constant and $15 increases as the number of hour increase. For x hours, the cost for Fernando to clean a pool is given by :
y = 15x+25
For 3 hours,
y = 15(3)+25
= 45 + 25
= 70
So, the required option is (c) " 15x+25 ; 70 ".
solve by elimination
3x-y=14
5x+4y=12
Answer:
Step-by-step explanation:
Help Pleasee!!! I’ll make you the brainlyest!!!! Pleaseee
Answer:
theta = 210°
Step-by-step explanation:
To convert we radians to degrees all we have to do is multiply the radians by π/180:
radians * (180 / π) = degrees
((7π) / 6) * (180 / π) = 210°