A plumber charges $50 to come to a house and $20 an hour for work time. If h represents the number of hours worked, which expression gives the total amount the plumber charges?
a.
50h + 20
b.
20h + 50
c.
20(h + 50)
d. + 50
Answers
20h + 50- the answer is a.
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1/8 the sum of 23 and 17
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I need help. A building with a height of 48 m casts a shadow that is 30 m long. A person standing next to the building casts a shadow that is 0.8 m long. How tall is the person?
Answers
Rachel's speed is 38 m/s.
What is Equation?
Equations are mathematical statements with twoalgebraic expressions flanking the equals (=) sign on either side.
It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.
Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.
Given:
D = -38t + 220
So, t = 1
D = -38t + 220
D = -38(1) + 220
D = -38+ 200
D = 182 m
So, v = / t
v = ( 220- 182) /1
v = 38 m/s
Hence, Rachel's speed is 38 m/s.
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Answer: 38 meters per second
Step-by-step explanation:
Answers
3x^2-7x-2
doesn't factor
You can not factor this
I hope that's help !
2x2 – 4
2x2 + 4
2x2 + 7x – 4
2x2 – 7x – 4
Answers
Answer:
the answer is 2x^2+7x-4
Step-by-step explanation:
hope it helpsssssssssss
Answers
it needs to be 20 characters so here’s this ndnsoxid
Final answer:
The subject of this question is Mathematics and the grade level is High School. The relationship between the number of months and the total cost of having the account can be represented by the formula y = 4.95x, where y is the total cost and x is the number of months.
Explanation:
The subject of this question is Mathematics
- Joel's monthly service fee is $4.95, therefore, each month the total cost of having the account increases by $4.95
- In terms of variables, let x be the number of months and y be the total cost of having the account
- The relationship between x and y can be expressed as y = 4.95x, where 4.95 represents the monthly service fee and x represents the number of months
Thus, the formula y = 4.95x represents the relationship between the number of months and the total cost of having the account.
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Answers
so we find the factors and include all of them so like this
15=3 times 5
12=2 times 2 times 3
8=2 times 2 times 2
so to include all of them we include 3 2's, 1 3 and 1 5 or 2 times 2 times 2 times 3 times 5 or 8 times 15 or 4 times 30 or 120
the LCM is 120
so 4/15=32/120
1/12=10/120
3/8=45/120
add 32/120+10/120+45/120=(32+10+45)/120=87/120
To find the LCM, multiply two of the numbers together and test to see if the third one divides evenly into it.
15 x 8 = 120
120 ÷ 12 = 10
Because all three numbers go evenly into 120 (and 120 is the smallest number for which that is true), the least common denominator would be 120.
Answers
+ 16 + 16
2 ≥ ¹/₃x
3(2) ≥ 3(¹/₃x)
6 ≥ x
x ≤ 6
Solution Set: (-∞, 6]
5 < ¹/₈m + 5
- 5 - 5
0 < ¹/₈m
8(0) < 8(¹/₈m)
0 < m
m > 0
Solution Set: (0, ∞)