Answer:
y = 10
Step-by-step explanation:
Given y varies jointly as x and z then the equation relating them is
y = kxz ← k is the constant of variation
To find k use the condition y = 20 when x = 4 and z = 3 , then
20 = k × 4 × 3 = 12k ( divide both sides by 12 )
[tex]\frac{20}{12}[/tex] = k , that is
k = [tex]\frac{5}{3}[/tex]
y = [tex]\frac{5}{3}[/tex] xz ← equation of variation
When x = 2 and z = 3 , then
y = [tex]\frac{5}{3}[/tex] × 2 × 3 = 5 × 2 = 10
If 5 gallons of gas cost $7.79, how much
will 7 gallons cost?
Answer:
$10.91
Step-by-step explanation:
7 gallons cost:
[tex](\frac{7.79}5}) (7)=\frac{(7.79)(7)}{5} =10.906[/tex]
rounded to cents: 10.91
I hope this help you
Find the perimeter. Simplify your answer.
Step-by-step explanation:
perimeter =
2(L+B)
=2× (7z+3 +3z+5)
2×10z +8
=20z+16
answer this question
First we need to solve the inequality
[tex]\\ \sf\longmapsto 2x-8<4x+5[/tex]
[tex]\\ \sf\longmapsto -2x=13[/tex]
[tex]\\ \sf\longmapsto x=-\dfrac{13}{2}[/tex]
[tex]\\ \sf\longmapsto x=-4\dfrac{3}{4},6.5[/tex]
An animal hospital advertises a veterinarian’s starting salary as $50,000 for the first year, with increases of $1,500 each year for the next nineteen years. The total salary is represented by the series shown. (first image)
Which is equivalent to the series? Check all that apply.
Answer:
A B & D
Step-by-step explanation:
Edge 2021
Answer:
Part 1: A, B, and D
Part 2: $1,285,000
Step-by-step explanation:
Edge 2022 :)
Mr. Smith charged Jill $320 for parts and $150 per hour for labor to repair her bicycle. If he spent 3 hours repairing her bike, how much does Jill owe him? Write an expression and show your work and answer.
Answer:A repair bill for a car is $648.45. The parts cost $265.95. The labor cost is $85 per hour.
Step-by-step explanation:
had this question
which product is greater (-4) x (-6) or (-7) x (-8) explain how
Answer:
(-7) × (-8)
Step-by-step explanation:
(-4) × (-6) = 24
(-6) × (-7) = 42
the Arizona Cardinals won 10 games out of 16 games during the 2009 regular season. At this rate, how many games do they need to play to win 50 games?
For every 10 games they won they lost 6:
50 wins/ 10 wins = 5
5 x 6 loses = 30 loses
50 wins + 30 loses = 80 total games
Answer: 80
What is hypothesis and axioms?
Answer:
Hypothesis- scientific prediction that can be tested or verified
Axioms- statement which is assumed to be true
Step-by-step explanation:
what is 45x32 please help me
i need help asap
Answer:
1440
Step-by-step explanation:
Answer:
1440 is the answer to 32 x 45
Math pls I need help
Answer:
24
Step-by-step explanation:
First of all to check whether a number is divisible by 3 or not. We have to add the numbers and if the result is divisible by 3. Our number is divisible by 3 (no doubt). So 72 (7+2=9 is divisible by 3) ÷3 = 24
Find the perimeter. Simplify your answer.
Answer:
10u-16
Step-by-step explanation:
Formula for perimeter of a rectangle is 2l+2w, where l and w represent length and width respectively. Applying this formula here, we get 2(5u-10)+2(2), which is a simple expression to simplify:
2(5u-10)+2(2) = 2(5u)-2(10)+2(2) = 10u-20+4 = 10u-16
Answer:
10u - 16Step-by-step explanation:
Perimeter = 5u - 10 + 5u - 10 + 2 + 2
= 10u - 16...ans
Hope it Helps you!!Find the perimeter. Simplify your answer.
Answer:
6z-30 :D
Step-by-step explanation:
Step-by-step explanation:
The perimeter of a square is just all the sides added up together. To do this we can make an equation.
2(z-5) + 2(2z - 10)
This represents two sides with different lengths two times. To solve, you first use the distributive property to multiply z-5 by 2.
2z - 10 + 2(2z - 10)
We then use the distributive property by multiplying 2z - 10 by 2.
2z − 10 + 4z − 20
We then combine 2z and 4z to get 6z.
6z − 10 − 20
Subtract 20 from 10 to get -30.
6z-30.
Breanna thought of a number, divided it by 5, and then added 7 to her answer. She got a final number of 11. What was her starting number?
Answer:
the answer is 20
Step-by-step explanation:
got it yw man<333333
Cindy saves 420 each month her monthly salary is 2100 what is the ratio of the amount Cindy saves to the amount she earns each month?
the ratio of 2100 salary to 420 saved is 15:3 each month
parallel perpendicular or neither
Answer:
parallel
Step-by-step explanation:
4-2/-9-0= 2/-9
6-8/4+5= -2/9
he 134 sixth grade students sit together in the auditorium. Each row has 12 seats. How many rows do the sixth graders need
Answer:
Approximately 11.1666666667 rows
Step-by-step explanation:
134/12= 11.1666666667
Answer:
12 rows
Step-by-step explanation:
(134 students) / (12 students/row) = 11 2/12 rows
The 6th-graders will need 12 rows of seats. The last row will not be filled.
A 0;2;4;6;8
;
B 3;4;5;6;7
Answer:
A -4; -2; 0 ; 2 ; 4 ; 6 ; 8 ; 10
B 1; 2; 3; 4; 5; 6; 7; 8
cuantos segundos tiene una hora
Answer:
3600
Step-by-step explanation:
Answer:
3600
Step-by-step explanation:
verificando :)
500 dollars divided by 3:7
Answer:
150:350
Step-by-step explanation:
3:7 = 3+7=10
500:10=50
3x50=150
7x50=350
150:350
Hope this helps :)
500 divided by 3 is equal to 166 with a remainder of 2: 500 / 3 = 166 R.
You are doing chores to earn your allowance. For each chore you do, you earn $5. You are saving up to buy a $100 lego set. How many chores would it take you to earn $100?
Answer:
It would take 20 chores.
Step-by-step explanation:
1 chore = $5
=> 1 x 20 = $100
=> 20 chores = $100
Therefore, it would require me 20 chores to save $100 and buy that Lego set.
Hoped this helped.
find the gradient and y- intercept of the line with equation 2x+3y-7=0
Answer:
Gradient = -2/3
y-intercept = 7/3
Step-by-step explanation:
Convert the equation in y = mx + c form, m is the gradient and c is the y-intercept
2x + 3y = 7
3y = -2x + 7
y = -2/3x + 7/3
go ahed and try im confuesd
Answer:
a and c and e
Step-by-step explanation:
Answer: I believe its proportional
Step-by-step explanation:
What is the base of the expression 6^-4?
Answer:For this case we have that by definition it is fulfilled:
Where:
a: It is the base
b: It is the exponent
So, if we have the following expression:
-6 to the power of 4, is equivalent to:
So we have to:
-6: It is the base
4: It is the exponent
-6: It is the base
4: It is the exponent
Step-by-step explanation:
The width of a rectangle measures (7f-4)(7f−4) centimeters, and its length measures (2f+5)(2f+5) centimeters. Which expression represents the perimeter, in centimeters, of the rectangle?
Answer:
Perimeter is 18f+2
Step-by-step explanation:
Given : rectangle having width (7f-4) and length (2f+5)
To Find : Expression For Perimeter = ?
Solution : We know that, perimeter of rectangle is 2(L+B)
-> 2(7f-4+2f+5)
-> 2(9f+1)
-> 18f + 2
I hope this helps.
Round 0.817446 to the ten-thousandths place.
Answer:
0.8174
Step-by-step explanation:
You just round up to the 4th to the right
Which product is greater than 63?
7/8 x63
3/2 x 63
4/5 x 63
2/3 x 63
Answer:
The answer is 3/2 x 63
Step-by-step explanation:
3/2*63 = 189 / 2 = 94.5
7/8*63 = 441 / 8 = 55.125
2/3*63 = 126 / 3 = 42
4/5*63 = 252 / 5 = 50.4
Therefore the answer is 3/2 x 63 because it’s product is greater than 63.
Find the length of side x to the nearest tenth.
309
X
60°
Sam has 3 more than twice the number of baseball cards that Catherine has. Together Sam and Catherine have 51 baseball cards. How many cards do Sam and Catherine each have?
Answer:
catherine has 16 card and sam also has 16 card
there are 6 marbles if 5 are needed, how many different alternatives are there
Answer:
30
Step-by-step explanation:
5x6=30
i’m physically begging for someone to help i do not understand
Answer:
Step-by-step explanation:
