Mathematics High School

Does y = 2x + 4 show direct variation?

Answers

Answer 1

Answer:

Step-by-step explanation:

Direct variation is of the form

y = kx

This has a constant added

y = kx+b so it is not a direct variation

Answer 2

Answer:

Step-by-step explanation:

in order for it to be a direct variation, "+4" must be out of the equation. y=kx

Related Questions

$72 game with a 20% discount and 7.5% tax

Answers

Answer:

Cost of game after discount = 72 - 20% of 72 = $57.6

Cost after tax = 57.6 + 7.5% of 57.6 = $61.92

So, the required cost is $61.92.

Two pencils and a ruler cost 98 cents in total. One pencil and 2 rulers cost $1.24 in total. Find the cost of each item.

Answers

Answer:

2.16

Step-by-step explanation:

r = cost of ruler

p = cost of pencil

r = 2p

6r + 15p = 2.16

Substitute 2p in place of r in 2nd equation and solve for p

6(2p) + 15p = 2.16

12p + 15p = 2.16

27p = 2.16

Answer: 2.16
6(2p)+15p=2.16
12p+15p=2.16
27p=2.16

find the
volume or air
4m
by
5m which is only 3m
high

Answers

Answer:

volume of cuboid=l×w×h

volume of cuboid=4×5×3=60cm³

Amanda drinks 2 1/2 pints of milk a day. How much is this in cups?

Answers

Answer: A pint is equal to 2 cups (example: a large glass of milk!) When measuring many cups of liquid all put together we might want to use quarts. A quart (qt) is the same thing as 4 cups or 2 pints.

Step-by-step explanation:

Answer:

2 cups

Step-by-step explanation:

The point (-6,-2) is located in quadrant

Answers

Step-by-step explanation:

The point is located in the second quadrant because x is negative and y is positive.

Answer:

Quadrant 3

Step-by-step explanation:

Does the following system of equations have :
Infinitely many solutions
or
No solution ?

2:+y = 2
y = -21 - 1

Answers

Answer:

Infinite many solutions

Step-by-step explanation:

So apparently the underlined answer is correct. Can somebody explain why? I will give brainliest if I get a good explanation.

Answers

Answer:water

Step-by-step explanation:money

Beth walked 10 7/8 miles one week. she walked 2 1/4 fewer miles the following week. About how many miles did she walk the second week round each mixed number to the nearest whole number.

Answers

Answer:

8 and 5/8 miles

Step-by-step explanation:

please help me i’ve been struggling PLEASE !!

Answers

Answer:

1. s=43

2. s=148

3. s=137

Step-by-step explanation:

4/5 ÷ 1/2 – 3/4 × 3/5( these are fractions)

Answers

Answer:

23/20 or 1 3/20 or 1.15

Answer:

1 3/20

Step-by-step explanation:

9. (4 x 10) (3.25 x 10)

Answers

Answer:

1300

Step-by-step explanation:

(4 x 10) (3.25 x 10)=40*32,5=1300

Answer:

1300

Step-by-step explanation:

(4×10) (3.25×10)

40 × 32.5= 1300

solve for a
4(2a - 1) = -10(a - 5)

Answers

Answer:

A = 3

Step-by-step explanation:

8a-4=-10a+50

8a-4+4=-10a+50+4

8a=-10a+54

8a+10a=-10a+54+10a

18a=54

54 / 18 = 3

A = 3

the answer would be a=3. to put it more clear, multiply the number outside of the parenthesis. so for example 4•2a is 8a, and 4•-1 is -4. since the -4 has no variable, it would just be 8a-4. next, the -10 times a positive a would be -10a. a positive times a negative is negative. next, do -10•-5 which is positive 50. remember, a negative times a negative is positive! after this, take the 8a-4=-10a+50 and add the constant and the variable (-10a) by the 8a. ALWAYS go right to left when subtracting or adding. you should get 18a. so 18a-4=50. take the negative four and add a positive four because you need to make the sides equal, add the four to 50, and you should get 18a=54. lastly, 54/18 is 3! so, A=3

A youth organization decided to go to the movies,
Adult tickets cost $7.00 each, and youth tickets cost $5.00 each. If four
adults purchased tickets, and the total bill cost of the outing was $118.00,
how many youth attended went to the movies?

Answers

Answer:

7x + 5y = C

Step-by-step explanation:

Answer:

18 children

Step-by-step explanation:

4x$7=$28

$118-$28=90

90 divided by $5

HELP MEE ITS FOR MATH ABD NOBODY HAD SAID WHAT TBE STORE MADE FROM HIS SALES

Answers

Answer:

727.5

Step-by-step explanation:

If Jarrod made 3 percent in commissions then y have to find what 97 percent of 750 is

The equation set up would be .97 times 750

750 times .97= 727.5

A number consists of two digit whose sum is five
when the digit irreversible, the no. become greater by nine .find the number

Answers

Answer:

Step-by-step explanation:

How many degrees is 1.2 rotations counter clockwise?

Answers

Answer:

The expression is already in decimal form.

1.2

Step-by-step explanation:

(づ￣ ³￣)づ

3 x 7/18 as a fraction in simplest form

Answers

7/6 is the answer. If you divide the denominator by 3, you would get it

Which equation represents a line which is parallel to the line 7x - y = 4?

Answers

Answer:

Step-by-step explanation: step : Place the given line’s equation in slope- intercept form y = mx + b. A line parallel to this line will have the same slope.

7x - y = 4. Yields y = 7 x - 4. Therefore y = 7x - 5 is the correct answer.

what is the point slope form of (2,4), m=1/2

Answers

Answer:

y=1/2x+3

Step-by-step explanation:

y=1/2x+b

b=3

Someone please help?

Answers

Answer:

42°

Step-by-step explanation:

its 42° because its smaller than 48° and that's the only option smaller lol

Answer:

42 degrees

Step-by-step explanation:

The angle forms a right angle, which in total would be 90 degrees.

48 + 42 would be the only option because it is the only one that adds up to 90 degrees.

72 pens are stored in 24 containers. Which of the following expresses the unit rate for this scenario?

A
72 pens per container

B
24 pens per container

C
3 containers per pen

D
3 pens per container

(PLZZZZZZZZZ I NEEEDDD HELP) IM IN THE 6TH GRADE PLZZZ I NEED HELP

Answers

You divide 72/24
The answer is 3

can someone please help me with this equation? i'll give you the brainliest answer :)

Answers

32 Cheesecake
36 Caramel
12 Fudge

Appreciate the brainliest!

Solve by factoring.
s2 + 8s + 15 = 0

Answers

(s + 5) (s + 3)
s = -5, -3

Can someone tell me if I’m right on this one?

Answers

Answer:

No, it's -1 + -6 = -7

Step-by-step explanation:

The first arrow goes left -1 and the other one goes left -6, to get -7

What is the inverse of the following statement? If two triangles are congruent, then their corresponding angles are congruent.

Answers

Answer:

If two triangles are not congruent, then their corresponding angles are not congruent.

Step-by-step explanation:

The inverse is when both the hypothesis and conclusion are negative (if not p, then not q).

Answer:

If two triangles are not congruent, then their corresponding angles are not congruent.

Marc is planning a holiday for 4 people for 7 days.
Here are the costs for the holiday for each person.
Travel
£250
Hotel
£50 for each day
Spending money £350
Work out the total cost of the holiday for 4 people for 7 days.

Answers

Answer:

£3,800

Step-by-step explanation:

The computation of the total cost is shown below;

Each person cost is

Travel cost £250 (assume for 7 days)

Hotel cost £50 × 7 days = £350

Spending money £350 (assume for 7 days)

Cost for each person is £950

Since there are four persons, so the total cost would be

= £950 × 4 peoples

= £3,800

Is (-4,-6) a solution?
2x + 3y <-9
x - 2y 2 - 4
(-4, -6)

Answers

i don't know

Step-by-step explanation:

When 8 is added to a certain number and the
sum is multiplied by 3, the result is 57.
Find the number.

Answers

Answer:

Step-by-step explanation:

11+8=19

19x3=57

can't figure out this problem can anyone help if so thank you

Answers

Answer:

10th term of the sequence = 0.537

Step-by-step explanation:

First three terms of the sequence are → 5, 4, [tex]\frac{16}{5}[/tex]..........

Ratio of 2nd and 1st term of the sequence = [tex]\frac{4}{5}[/tex]

Ratio of 3rd and 2nd term of the sequence = [tex]\frac{\frac{16}{5} }{4}[/tex]

= [tex]\frac{4}{5}[/tex]

Therefore, ratio between every successive term to the previous term is common.

Common ratio 'r' = [tex]\frac{4}{5}[/tex]

First term of the sequence 'a' = 5

nth term of a geometric sequence = [tex]a(r)^n[/tex]

Therefore, nth term of the given term will be [tex]T_n=5(\frac{4}{5})^n[/tex]

Now we have to find the 10 term of the given sequence.

For n = 10,

[tex]T_{10}=5(\frac{4}{5})^{10}[/tex]

= 0.53687

≈ 0.537

Therefore, 10th term of the sequence is 0.537

Find the number for x. (Divide)
8.2x=164

Answers

x= 20

Divide both sides by 8.2 so x will be by itself. 164 divided by 8.2 is 20 so x=20

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