Mathematics High School

please need help , and if possible can show work . What is the value of x in the equation 1/5x-2/3y=30 when y=15

Answers

Answer 1

Answer:

x=200

substitute 15 for y and then solve and get X to the other side

Answer 2

X=200, because you need to plug in the 15 to the equation

Related Questions

CRÍTICAL THINKING Can you use the Product of Powers Property to
multiply 5^2 x 6^4 ? explain

HELP Please

Answers

Answer:

The answer for that equation is 32400

Step-by-step explanation:

Answer:

No because their bases are not the same

Step-by-step explanation:

Two triangles have the same base lengths. One Triangle has the height that is 4 times the height of the other triangle. Are the heights and the areas of the two triangles proportional?

Answers

YES

Area of Triangle 1

Base=b

Height= h

Area 1=A1=1/2*b*h

Area of Triangle 2

Base=b

Height= 4h

Area of triangle 2=A2=1/2*b*4h

Comparing A1 and A2

A2/A1= (1/2*b*4h)/(1/2*b*h)

= (1/2*b*4h)/(1/2*b*h)

=4/1

Ratio of heights =h2/h1= 4/1

Ratio of areas =A2/A1= 4/1

They are proportional.

The following two triangles are similar. Side AB = 25, side PQ = 5, and side BC = 15. What is the length of side QR?

Answers

Answer:

Step-by-step explanation:since i helped can i have brainlst please that would be greatly apericated

Answer:

Step-by-step explanation:

Please help help help help help im having trouble with this problem what is the answer

Answers

B. Increasing, nonlinear.

Hope this helps. Also, cool pfp.

PLS HELPPP I don’t understand and I need help if so pls pls

Answers

Answer:

Step-by-step explanation:

rod is closest at 3m change

judy is medium at 7 m change

nelda is deepest at 9m change

Yeah he’s exactly right...... A

What number is 2/5 of 50

Answers

2/5 * 50

= 100/5
= 20

Hi ☘

I dont understand 2/5 of 50

İf 50.2/5

[tex]50. \frac{2}{5} = 50 \div 5 = \frac{2}{5 \div 5} = 10.2 = 20[/tex]

İf 2/5 /50

[tex] \frac{\frac{2}{5} }{50} = \frac{2}{5} . \frac{1}{50} = \frac{2 \div 2}{5} . \frac{1}{50 \div 2} = \frac{1}{5} . \frac{1}{25} = \frac{1}{125} = 0.008[/tex]

i need help this too help me and thank you and thank you

Answers

A is (-1,0) B is (0,-3) C is line of symmetry D is (3,0) E is (2,-3) F is (1, -4)

Determine the center and radius of the following circle equation: x^2+y^2-8x+6y-75=0 x 2 +y 2 −8x+6y−75=0 Center: \big(( , \big)) Radius:

Answers

Answer:

Compare x^2 +y^2-8x-6y=75 with the general circle equation x^2+y^2 -2ax-2by+c=0

-2a =-8 And -2b=-6

a=4 b=3

c=-75

To find the radius use the equation

r^2=a^2+b^2-c

r^2=4^2+ 3^2-(-75)

r^2=25+75=100

r=10(radius is always positive)

Hence the center is (4,3) and radius 10

Step-by-step explanation:

If 5-x=3 then what is 3x^2

Answers

Answer:-

• Given:-

5 - x = 3

• Solution:-

➪ 5 - x - 3 = 0

➪ 5 - 3 - x = 0

➪ 2 - x = 0

➪ 2 = x

Hence, x = 2

Now,

✯ 3x²

➪ 3 × (2)²

➪ 3 × 4

➪ 12

Therefore, 3x² will be = 12.

What are the solutions of the equation (2x - 21 = 8?

Answers

Answer:

Exact Form: x= 29/2 ( the / is _ under 29)

Decimal form: x= 14.5

Mixed form: x= 14 1/2 ( the / is _ under 2)

Step-by-step explanation:

Move all terms that don't contain

to the right side and solve.

Simplify x^−7. Write your answer using only positive exponents.

Answers

x-7 Is how you simplify

Positive form is 1/x/7

o figure out a special number, Tammi’s mother was supposed to double her age and then add 4. Instead, Tammi’s mother added 4 to her age and then doubled that number. Tammi’s mother thought the special number was 80. What was the special number supposed to be?

Answers

Answer:

her age was 36 she added 4nwhich made 40 then doubles makesn80

9514 1404 393

Answer:

Step-by-step explanation:

For age 'a', the special number was supposed to be ...

2a +4

Tammi's mother actually calculated it as ...

2(a +4) = 2a +8

a value that is (2a+8) -(2a+4) = 4 more than it was supposed to be.

The special number was supposed to be 80 -4 = 76.

A full glass of water can hold a bottle.
How many glasses of water can be filled with 3 and 1/2 bottles of water?

Answers

It can fill 21 glasses of water

Explanation: 1 glass holds 1/6 of a bottle then 6 glasses hold 1 glass bottle water. then 3(12)or72 bottle can give 6⋅72 glasses of water , that is 21 glasses.

Mr Martin has 120 CDs. The ratio of indie CDs to dance CDs is 5:7. How many of each type of CDs does he have.

Answers

Answer

Martin has 50 indie CDs and 70 dance CDs

Step-by-step explanation:

5+7=12 120/12 =10 10x5=50 and 10x7=70 So Martin has 50 indie cds and 70 dance CDs

OK I KNOW I HAVE ASK MORE THAN ONE QUESTION BUT PLZ HELP You are a high school senior with a part-time job at a retail store. Your employer pays you $9.75 per hour. Last week, you worked a total of 30 hours.

The following payroll deductions were taken from your gross pay:

Federal income tax (withholding) at 10%
Social Security tax at 6.2%
Medicare tax at 1.45%
Use the check stub below to help you think through the problem.

You are encouraged to use scratch paper or Chrome Canvas as a scratch pad. You are allowed to check your calculations with a calculator.

check stub

The amount for MEDICARE TAX for this pay period was $
Blank.

Answers

tax is 204 with shipping

Marie added 3 1/8 cup of all-purpose flour and 1/4 cup of whole wheat flour in the cake. She added 1/3 cup of sugar at also, how much flour she added in the cake ?

Answers

Answer:

3 [tex]\frac{3}{8}[/tex]

Step-by-step explanation:

Maria only combined two different types of flour to the cake. Therefore, in order to find the total amount of flour she added we need to add these measurements together. First, we need to find a common denominator. We do this by multiplying the numerator and denominator of the amount of whole wheat flour by 2. This would be the easiest way of giving us the same denominator as the measurement for the all-purpose flour.

[tex]\frac{1 * 2}{4 * 2}[/tex] = [tex]\frac{2}{8}[/tex]

Now that we have the same denominators we can simply add both measurements together

3 [tex]\frac{1}{8}[/tex] + [tex]\frac{2}{8}[/tex] = 3 [tex]\frac{3}{8}[/tex]

i need help with geometry

Answers

Answer:

It would be C. I and II

Step-by-step explanation:

. Water in a 10 gallon tank is draining at a rate of 2 gallons per hour. Water in a separate tank is filling at a rate of 4 gallons per hour. How long until the tanks have the same amount of water?

Answers

Answer:

Step-by-step explanation:

Water in a 10 gallon tank is draining at a rate of 2 gallons per hour.

= 10 - 2x

Water in a separate tank is filling at a rate of 4 gallons per hour.

= 10 + 4x

Equating both Equations together

10 - 2x = 10 + 4x

10 - 10 = 4x - 2x

How long until the tanks have the same amount of water?

Let the time = x

step by step
-3(4v+1)+2v=57

Answers

Answer:

v= -5.8

Step-by-step explanation:

-12v+1+2v=57

-10v+1=57

-10v=58

v= -5.8

Maria makes a fruit salad.
The table shows the amounts of different kinds of fruit that she uses.
Kind of Fruit Amount
Grapes 323 cups
Melon 214 cups
Pineapple 234 cups
Strawberries ?
The amount of strawberries that Maria uses is 38 times the amount of the other fruits combined.
How many cups of strawberries does Maria use?

Answers

Answer:

If my calculations are correct it would be 6,168 cups of strawberries

Step-by-step explanation:

If it’s 8 times the amount of them combined then you add all of the other fruit together and then multiply by 8 giving you:

323+214+234=771

771*8=6,168 cups of strawberries.

Only in math would someone need that much fruit

same price, d.
) Which model represents the situation?
d
d
10
d
19
.) What is the price of one drink?
d=
7
8
9
ex
4
5
6

Answers

Answer: ddddd

Step-by-step explanation:

If 75% of a number is 165 and 10% of the same number is 22, find 85% of that number

Answers

Answer:

187

Step-by-step explanation:

0.75x=165 x=220

220*0.85

My guys do your thing i am giving brainliest

Answers

Answer: 18.84

1. Multiply the radius by two (diameter)

2. Multiply the diameter by pi

3. Round

Answer:

the circles circumference is 18.84 cm

The expression (2x2)3 is equivalent to _____.

a.6x2
b.6x5
c.8x6

Answers

Answer:

Step-by-step explanation:

(2x2)3

= (4)3

=12

6x2 = 12

So the answer is A

A because
(2x2)3
^
(4)3
^
12

And 6x2=12

Help it’s due now! Please

Answers

Answer:

Step-by-step explanation:

Substitute the values for the variables.

5(8) + 12/3

40 + 4 = 44

The answer is wat she or he said ^^ your welcome.! :)

M is a multiple of 26. Which of the following cannot be true?

A. M is odd
B. M is a multiple of 3
C. M is 26
D. M is zero

Answers

B. M is a multiple of 3

2x - 4y = 9, What is it you need to know to be able to solve this problem?

Answers

Answer:

What X and Y equal to.

Answer:

you need to know math, and some more math. thats really the answer

Step-by-step explanation:

At a bicycle shop, all the bicycles are on sale for $25 off the regular price. If p represents the regular price in dollars of a bicycle, which expression gives the sale price in dollars? 25p – 25p p – 25 p + 25

Answers

Answer:

p - 25

Step-by-step explanation:

Given :

Discount = 25 dollars off

Regular price = p

Sale price in dollars :

Regular price - discount

p - 25

The line shown in the graph passes through the points (2, 4) and (-1, 6). Which is the
equation of the line?

Answers

y2 -y 1 / x2 - x1
6 - 4 / -1 - 2
2 / - 3
m = -2/3 x (slope)

What is the y intercept of the following equation 3x-2y=4

Answers

Answer:

(0, -2)

i am pretty sure this is the answer

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