Find the value of y when given the value of x: y=2x-4 when x=7

Answers

Answer 1

Answer:

2x+y=7

Put, x=2

2(2)+y=7

4+y=7

y=−4+7

∴y=3.

Step-by-step explanation:


Related Questions

1. 6.208 + 1.6 =
how to multiply and divide decimals

Answers

[tex]\\ \sf\longmapsto 6.208+1.6[/tex]

[tex]\\ \sf\longmapsto 1.600+6.208[/tex]

[tex]\\ \sf\longmapsto 2.208[/tex]

Just count 0 s at right

Verify each identity
(sin(x))/(1 - cos(x)) - cot(x) = csc(x)

Answers

⟹sin2=1−cos2=(1−cos)(1+cos)
⟹sin1−cos=1+cossin=1sin+cossin=csc+cot

sinx1−cosx
=
1+cosxsinx=1
sinx+cosxsinx=cscx+cotx

If i have an 86% in my math class and i got 2.8/10 on an assignment how much would my grade drop​

Answers

I’m not sure because it depends on how weighted your assignments are. If I were you I would find some way to retake it or ask your teacher if you can do some extra work to make up for it. Hope this helps :)

Please help !!!! I need this

Answers

Answer:

xy²/5= 2×1²/5 = 2/5

...........

Answer:

0.8

Step-by-step explanation:

Find two numbers with a sum of 20 and a difference of 6

Answers

Answer:

So the answer is 13 and 7

Step-by-step explanation:

If we consider the case i.e. second-first =6

Which inequality below satisfies the solution set graphed on the following number line?

Answers

Answer:

D.

Step-by-step explanation:

The function must have the range  -3 to 5.

2x^2 - 4x - 30

= 2(x^2 - 2x - 15)

= 2(x + 3)(x - 5)

so the critical points are -3 and 5.

When x = -2 f(x) = 2* 1 * -7 = -14 <= 0

when x = 4 f(x) = 2 * 7 * -1 <= 0.

when  x= 0  f(x) < 0

So its the last option.


Find the x- and y-intercepts.
3.
8x + 7y= 28

Answers

Answer:

dees nuts

Step-by-step explanation:

To find the intercepts, substitute 0 for x to solve for y. And substitute 0 for the value of y to solve for x. You will have 2 equations and two answers. I got:
x= 7/2
y=4

Im not sure how to solve this. Please help. ​

Answers

Answer:

B

hope it helps

I need the answers asap

Answers

Answer:

1. B

2. G

3. D

4. C

Step-by-step explanation:

1.

-(7x-8) = 2-5x

-7x + 8 = 2 - 5x

-2x + 8 = 2

-2x = -6

x = 3

2.

5(3+2x) = 10x-4

15 + 10x = 10x - 4

No Solution

3.

x+5 = (3x+13) / 2

x + 5 = 1.5x + 6.5

x = 1.5x + 1.5

-0.5x = 1.5

x = -3

4.

2 + 6x = 2(3x + 2) - 2

2 + 6x = 6x + 4 - 2

2 + 6x = 6x + 2

Infinite Solution

plsssssss answerrr pls plsssss

Answers

Answer:

20

Step-by-step explanation:

Answer:

20 times

Step-by-step explanation:

6 x 10^5 = 600000

3 x 10^4 = 30000

600000/30000 = 20

Which model represent the factors of 4x2-9

Answers

Step-by-step explanation:

4x²-9

4x²+6x-6x-9

4x²+6x-6x-9

2x(2x+3)-3(2x+3)

2x(2x+3)-3(2x+3)

(2-3)(2x+3)

solution

(8x-3)(2x+3)

Sarah is going on a trip. She drives for 2 hours and 20 minutes, rests for 25 minutes and drives for another 2 hours 40 minutes. What is her total travel time in hours and minutes​

Answers

Answer: 3 hours and 25 min
5 hours with no break
If you include the breaks then the answer is 5 hours and 25 minutes

309 × 29 the turtle head way​

Answers

the answer of 309 x 29 is 8,961

Pipe A can fill a tank in 5 hours. Pipe B can fill the same tank in 7 hours. If both pipes were open, how long would it take them to fill an empty tank?

Answers

Answer:

It would take them 6 hours to fill an empty tank.

Step-by-step explanation:

Add the amount of time it takes Pipe A and Pipe B to fill an empty tank together (5 + 7) and then divide your sum by two. You should get 12 / 2 = 6.

Hope This Helps!

Divide.

(−14)÷(−34)

What is the quotient?

Enter your answer as a simplified fraction in the box.

Answers

Answer:

[tex] \frac{7}{17} [/tex]

Step-by-step explanation:

(-14) ÷ (-34)

14/34

= /17

The quotient of the division will be 0.41. And the solution of the division (−14) by (−34) would be 7/17  as a simplified fraction.

How can we interpret the division?

When 'a' is divided by 'b', then the result we get from the division is the part of 'a' that each one of 'b' items will get. Division, thus, can be interpreted as equally dividing the number that is being divided in total x parts, where x is the number of parts the given number is divided.

We need to divide the mixed fraction with integers, So

(-14) ÷ (-34)

The common denominator we can calculate as the least common multiple of the denominators then we get

14/34

= 7/ 17

= 0.41

Thus, the quotient of the division will be 0.41

Therefore, the solution of the division (−14) by (−34) would be 7/ 17  as a simplified fraction.

Learn more about division here:

brainly.com/question/26411682

#SPJ2

Which statement best describes a scatter plot

Answers

Answer:

a scatter plot shows how strongly two variables are related.

a scatterplot, also known as scatter graph is a graphic representation of the relationship between two numerical variables. One of the variables is represented on the horizontal axis (x-axis) while the other is represented on the vertical axis (y-axis).

Square ABCD has points A(5, 10) and B(-4, 3). What is the slope of line segment BC?

Answers

Given the square ABCD with points A(5, 10) and B(-4, 3), the slope of the line segment BC is 7/9

The formula for calculating the slope of a line is expressed as:

[tex]m=\frac{y_2-y_1}{x_2-x_1}[/tex]

Given the coordinate point  A(5, 10) and B(-4, 3)

Substituting the given coordinate into the formula for slope

[tex]m=\frac{3-10}{-4-5}\\m=\frac{-7}{-9}\\m=\frac{7}{9}[/tex]

Hence the slope of the line segment BC is 7/9

Learn more here:https://brainly.com/question/16949303

Can you help me please.

Answers

Step-by-step explanation:

ranges are,

-1 , -11 and 7

hope this answer helps you dear!

Answer:

R = { - 11, - 1, 7 }

Step-by-step explanation:

Substitute the values from the domain into f(x) for range

f(2) = - 2(2)² + 7 = - 2(4) + 7 = - 8 + 7 = - 1

f(- 3) = - 2(- 3)² + 7 = - 2(9) + 7 = - 18 + 7 = - 11

f(0) = - 2(0)² + 7 = - 2(0) + 7 = 0 + 7 = 7

Then

R = { - 11, - 1, 7 }

Over 25.5 days a ponds water level changed by a average of -0.32 centimeter each day what was the total change in the water level

A:10.55
B:-8.16
C:8.16
D:-10.55

Answers

If over 25.5 days a ponds water level changed by a average of -0.32 centimeter each day the total change in the water level will be:  C:8.16

Centimeter each day=-0.32

Days of changed in water level=25.5 days

Now let determine total change in the water level

Total change=25.5 days × (-0.32)

Total change=8.16 centimeter

Inconclusion if over 25.5 days a ponds water level changed by a average of -0.32 centimeter each day the total change in the water level will be:  C:8.16

Learn more here:

https://brainly.com/question/2028354

There are 115 flowers on 7 trees. What is the unit rate of the flowers per tree? How many flowers on 22 trees?

Answers

Answer: 16 flowers per tree, 352 flowers on 22 trees.

Step-by-step explanation:

115 flowers/ 7 trees= 16.4 flowers per tree

Since you can't have partial flowers, round down to 16 flowers per tree.

16 flowers per tree * 22 trees=352 flowers

PLZZZZZ HELP ME ILL MAKE YOU BRAINLIEST ANSWER PLZZZZZZ THANKYOUUU!!!!!!

Answers

Answer: what do you need help on?

Step-by-step explanation:

Encuentra el perímetro de la circunferencia cuyo diámetro es de 6 cm

Answers

Answer:

Circumference = 2*pi*r

Diameter = 6 cm

Radius = 3 cm

Circumference = 2*22/7*3

= 18.85 cm.....

Step-by-step explanation:

Hope this helps you....

Pls mark me brainliest....

Fill in the missing numbers to complete the pattern:
1.52, 1.77,
2.27,
2.77
Submit

Answers

Answer:

1.52,1.77,2.02,2.27,2.52+2.77

Step-by-step explanation:

The pattern is that it increases by 0.25

Hope this helps

Have a nice day! :D

Mark brainliest if possible

What are the correct answers to this geometry question?

Answers

Answer:

anong grade po yan?

baka alam ko po


Determine whether the equation is a linear equation. If so, write the equation in standard form.
13. y + 9 = -2x3

Answers

Answer:

y=[tex]-2x^{3}[/tex]-9

Step-by-step explanation:

if you jogged 3.5 miles in 3 hours, how many miles do you jog in 5 hours?

Answers

Answer:

How Long Does It Take to Run 5 Miles? Answering this question is extremely difficult since each runner is different. But the average time to run 5 miles is 50 minutes – that's 10 minutes per mile. If you're just starting out as a new runner, running 5 miles might take you an hour – or more.

Step-by-step explanation:

Answer:

~5.8mi

Step-by-step explanation:

3.5 3h

X 5h

X=(3.5×5)÷3=~5.8

What is the opposite of
[tex] \sqrt{3} [/tex]

Answers

Answer:

-1.73

Step-by-step explanation:

wolframalpha:///?i=opposite+of+√3

Additive inverse [tex]\sqrt{3}[/tex]

3x+3<36
pls help i’m not sure what it is

Answers

Answer:

Step-by-step explanation:

get the x alone by subtracting 3 from each side.

3x+3-3<36-3

3x<33

divide by three

3x/3<33/3

x<11

Hello There!

Solving inequalities is almost like solving equations.

x<11.

Let me explain step-by-step.

3x<36-3

3x<33

x<11

We must isolate x.

x < 11 means x is less than 11.

It could be 10, -100, as long as it is less than 11, it would make the inequality true.

Let's verify.

3(10)+3<36

30+3<36

33<36

It's true, isn't it?

Hope it helps! :)

Insect Species- The number of species of a particular type of
insect depends on the size of the insect according to the formula
f(m) 40m-0.6, where m is the mass in grams. Find and inter-
pret f'(0.01).

Answers

Answer:

F- 18 Hz. = 19m 2.

Step-by-step explanation:

10+3c≤1 ????????????????????????

Answers

Answer:

c<-3

Step-by-step explanation:

move the constant to the right-hand side and change its sing

Then canculate the difference

Then divide both sides for the inequality of 3

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