2.3r-y+6=21
Find r when y=7
Find y when r=4.23

Answers

Answer 1

Step-by-step explanation:

2.3r - 7 + 6 = 21

2.3r - 1 = 21

2.3r = 22

r = 22/2.3

r = 9.6

2.3(4.23) - y + 6 = 21

9.73 - y + 6 = 21

15.73 - y = 21

-y = 5.27

y = -5.27


Related Questions



simplify by using order of operations 10/2 + 3 + 6 + 3/3 ​

Answers

Answer:

15

Step-by-step explanation:

Order of operations: Parentheses, Exponents, Multiplication, Division, Addition/Subtraction

We'll start with division first. 10/2 = 5, 3/3 = 1

Then, we'll add the terms left. 5 + 3 + 6 + 1 = 15

if a polygon is a triangle, then it has exactly three sides. is the converse of the conditional true?

Answers

Answer:

If a polygon is a triangle then it has exactly three sides

A polygon has 3 sides if and only if it is a triangle. Put it all together: Conditional: If a polygon is a triangle, then it has three sides. Converse: If a polygon has three sides, then it is a triangle.

Answer:

yes

Step-by-step explanation:

because the polygon it has tree sides it's called triangle hope it's help

pls help! i’ll mark brainlest :)

Answers

Answer:

3,1. .........................

Answer:

I believe it is (0,4) I'm not sure though

Step-by-step explanation:

f(x) = 3x + 2
What is f(5)?

Answers

17, you just substitute the 5 for the x
The new problem would be f(5)= 3(5)+2
Simplify to f(5)=15+2
Answer f(5)= 17

Hello!

f(x) = 3x + 2

Since you are provided with f(5), we will replace every "x" in the equation with the number 5.

f(5) = 3(5) + 2

f(5) = 15 + 2

f(5) = 17

I hope this helps you! Have a great day!

- Mal

PLEASE HELPP ASAP!! what is the value of H in the diagram below ? if necessary, round your answer to the near test tenth of the unit

Answers

I’m pretty sure it is b why u may ask you have to didveud


Which statement correctly describes the inverse of the following function?

Answers

the answer is c i think

Ingrid and Harish were trying to solve the equation:
22 - 3x = x + 1
Ingrid said, "First, I'll subtract x from both sides so I have a? - 4x = 1. Then I can solve by completing the
square. If I add 4 to each side, I can rewrite the equation as (x - 2)² = 5."
Harish said, “I'll isolate the xạ term by adding 3x to both sides of the equation. Then I'll solve by taking the
square root."
Whose solution strategy would work?

Answers

Answer:

Only Ingrid's equation is correct

Answer:

Only Ingrid’s solution works

Which of the following is a solution of the equation 9- 2x=-1?
04
05
04
0-5

Answers

Answer:

the answer is 5

Step-by-step explanation:

9-2x=-1. you subtract the 9 from both sides, giving you -2x=-10. then you divide the -10 by -2 which gives you 5

The answer is 5. -2x=-10. x=5.

what is the equation of the line that passes through (6,4) and (4,1)

Answers

Answer:

y = 3/2*x - 5

Step-by-step explanation:

Lets say that P1=(6,4) and P2=(4,1) and that the form of the equation must be y=m*x+b where m is the slope and b the independent variable. Then having two given points we can use the slope formula to find the slope value as:

P1=(x1,y1) and P2=(x2,y2)

slope formula --->   m=(y2-y1)/(x2-x1)

Replacing the given points --->    m=(1-4)/(4-6) = 3/2

then replacing the slope value obtained:

y = 3/2*x + b

Now lets find the value of b. For this we have to replace in the equation a point it can be P1 or P2, i will replace P2:

1 = 3/2*4 + b

1 = 6 + b

1 - 6 = b

-5 = b

therefore the line equation is:

y = 3/2*x - 5

When a car moves it has.what energy?

Answers

Answer:

mechnical energy

Step-by-step explanation:

What is the equation in slope intercept form of the line that has a slope of -8 and y-intercept of 4/5?

Answers

Answer:

y=-8x+4/5

Step-by-step explanation:

the formula for slope intercept is y=mx+b so you just plug in the numbers. m is slope and b is the y intercept

sorry if this is wrong :)

Answer:

The answer will be listed below!

Step-by-step explanation:

The equation would be y=-8x+4/5. Slope intercept form is y=mx+b. m would be the slope while b is the y-intercept so in the end, you get y=-8x+4/5.

0.00000001073 as a scientific notation

Answers

Answer:

3.456 × 1011

please choose me brainliest

The answer would be 1.073 × 10-8

The owner of a bicycle shop models the shop’s profit in thousands of dollars each year by using the formula p = 0.015x3 – 0.2x2 + 0.95x + 39, where x is the number, in hundreds, of bicycles sold. Graph the function and describe its key features over the relevant domain.

Answers

Answer:

k k k k k k k

Step-by-step explanation:

k k okkkk k k high x crcyycs dgdvcsdvk kkhgj hfyjjdf c triol

the function is y=.95x+38.645

Which of the following is an equivalent form of the compound inequality -33> -3x - 6> 6

Answers

Answer:

21

Step-by-step explanation:

What is the value of k?
12k+6=4k–8

1.–4

2.–3

3. 3

4. 4

Answers

Answer:

4

Step-by-step explanation:

2.15 unit test

A 150 inch board is cut into two pieces. One piece is two times the length of the other. Find the length of the shorter piece

Answers

Answer:

i think it is 37.5

Step-by-step explanation:

hope this helps

Evaluate y5 for y =1.

Answers

Answer:

the answer is 5

Step-by-step explanation:

you replace y by 1 and distribute (1)5

How many degrees is the measurement of the missing angle? (Only numeric answer, no words or symbols at all)

Answers

Answer:

65°

Step-by-step explanation:

35° + 80° + x° = 180°

115° + x = 180°

x = 180° - 115°

x = 65°

I need help PLEASE i will mark brainliest

Answers

The answer is C. Reflection. Figure Q was flipped over the y-axis, the line of reflection

Answer:

its b

Step-by-step explanation:

A cylinder has a base diameter of 12ft and a height of 12ft. What is its volume in cubic
ft, to the nearest tenths place?

Answers

Answer:

1357ft^3 but to the nearest tenths place is 1360ft^3

Step-by-step explanation:

Answer:

1357.2

Step-by-step explanation:

h=12  d=12 r=6

v=(6)∧2(12)

v=1357.16802635

v=1357.2ft∧3

In Vladivostock, Siberia, the noon temperature was 13°C, but then it dropped to –31°C by midnight. What was change in temperature? (Be sure to include your expression

Answers

Answer:

there was a 44 degree change in the tenpature

Can someone pls help me?!?

Answers

Answer:

Step-by-step explanation:

If the sum of the two given angles is 5 + 10 = 15 then the third side cannot be larger than 15. If it is, the two given angles will fall flat on the third angle.

If the third angle is less than 5 then the sum will be less than 10 and the same thing will happen as described above.

So the correct answer is B

Which is a better deal?
An ice company charged $6.02 for 7 bags of ice. If a
convenience store sold 6 bags of ice for $5.52, which is a
better buy?
Explain/Justify your answer

Answers

Answer:

The $6.03 for 7 bags of ice is a better deal

Step-by-step explanation:

In order to find out which is a better deal we find the unit price.

To find the unit price we do the cost divided by how many bags of ice.

6.02 divided by 7 = 0.86, so the unit price is 0.86/1

5.52 divided by 6 = 0.92, so the unit price is 0.92/1

Finally, we can see which has a lower unit price which is the $6.03 for 7 bags of ice

in a triangle abc the lengths look the three sides are 7 cm 12 cs and 13 cs

Answers

Answer:

So what's the question ur trying to ask?

mckwjenownfedjoiwnvoibfl?

Answers

no because yes.

If mckwjenownfedjoiwnvoibfl is aughwanjkgadgajnk, then no.

A weight of meteorite A is 7 times the weight of meteorite B. If the sum of their weights is 152 tons find the weight of each

Answers

Answer:

no lo se perdon

Step-by-step explanation:

Nicholas took a total of 10 quizzes over the course of 2 weeks. How many weeks of school will nicholas have attend this quarter before he will have taken a total of 15 quizzes?

Answers

Answer:

would be 3 weeks

Step-by-step explanation:

He is taking about 5 each week he has done 10 in 2 weeks so should be 3 weeks.

Answer:

3 weeks

Step-by-step explanation:

2 weeks is 10 quizzes and 1 week is 5 quizzes, so 2+1=3

Equivalent radios to 2:12

Answers

Answer:

1:6

Step-by-step explanation:

[tex]2:12[/tex]

Cross cancel common factor : 2

[tex]2 \div 2 = 1 \\ 12 \div 2 = 6 \\ 1:6[/tex]

Can someone explain this to me becasue ive been trying for the past 30 mins and i still dont understand it

Answers

S=$1800+$110*N

Use this equation to plot a graph.

Solve the following system of equations using the elimination method.
7x + 20y = 14
2x – 10y = 4
Question 18 options:

A)

(3,1)

B)

(2,0)

C)

(4,–5)

D)

(–3,4)

Answers

Answer:

opt B (2,0)

Step-by-step explanation:

.

.

.

pls rate

Answer:

B

Step-by-step explanation:

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