Mathematics High School

pls help me out lol. I’m desperate

Answers

Answer 1

Answer:

x=3

Step-by-step explanation:

[tex]\frac{x}{9} =\frac{8}{21+x}[/tex]

x²+21x-72=0

(x-3)(x+24)=0

x=3 or x=-24(rejected)

∴x=3

Related Questions

7/20% off 25 is what?

Answers

Answer:

As a fraction: 7/80

0.0875

Step-by-step explanation:

If you meant 20% it is 5.

simplify -8-(12)+(-2)

Answers

Answer:

-22

Step-by-step explanation:

-8-(12)+(-2)

-8-12-2

-20-2

-22

HOPE THIS HELPS!

Juan works at a health food store
two hours a day, three days a
week. His weekly pay is $73.50.
About how much does Juan make
per hour?

Give me the right answer and I’ll mark your answer the brainliest

Answers

Answer:

12.25 per hour

Step-by-step explanation:

have a great day!

The answer is 12.25.

I'm sure about the answer.

PLEASE HELP!!
Cody bought two pairs of gloves and four hats for $43. Tori bought two pairs of gloves and two hats for $30. What are the prices for the gloves and hats? Write a system of equations!

Answers

Answer:

2g + 4h = 43

2g + 2h = 30

Step-by-step explanation:

Answer:

pairs of gloves = x

hats = y

2x + 4y = 43

2x + 2y = 30

hats = $6.50

gloves = $8.50

Step-by-step explanation:

use the elimination method to solve this system.

subtract the first equation by the second.

2x + 4y = 43

- 2x + 2y = 30

--------------------

2y = 13

y = 6.5

plug in the y value to find x

2x + 4 (6.5) = 43

2x + 26 = 43

2x = 17

x = 8.5

which expression is equivalent to (x ^4) ^-5

Answers

Answer:1/x^20

Step-by-step explanation:

Answer:

[tex]\frac{1}{x^{20}}[/tex]

Step-by-step explanation:

[tex](x^{4})^{-5}[/tex] = [tex]\frac{1}{(x^{4})^{5}}[/tex] = [tex]\frac{1}{x^{20}}[/tex]

Find the value of x for brainliest

Answers

Answer:

x=27.5

Step-by-step explanation:

x/4=55/8

Cross multiply:

8x=220

Divide:

8x/8=220/8

x=27.5

An item with an original price of p dollars is on sale at a 35% discount. Write an
expression that is equivalent to the price of the item with the discount.

Answers

The answer to your question is 0.25 p

plz I need help on this really bad :(

Answers

Answer:

x+3y=4x+y

Step-by-step explanation:

15) Dan is putting a fence around his circular swimming pool. If the pool
has a diameter of 13.5 feet and fencing costs $6 per foot, how much will
he spend?

Answers

Answer: 2

Step-by-step explanation:

Answer:

2.25

Step-by-step explanation:

You have to divide 13.5 and 6 to get your answer

A 45 ounce box of cereal costs $3.99. Find the unit price. Round your unit
price to the nearest cent if needed.

Answers

Answer:

0.1125 ounces per cent

Joan measures the mass of a solid metal object. It has a mass of 102.0 g. She also measures the volume of that object and the object has a volume of q 027 mL a)

What is the density of the metal object?
What metal could it be made Of?

Answers

Step-by-step explanation:

P=m/v

P=102,0 ÷027

P=3,77 that is the density

It is made of copper

Write the equation 6x – 3y = 9 in slope-
intercept form.

Answers

the answer to this question is y=2x-3

The Answer is is y=2x-3

Step-by-step explanation:

A bag contains 4 red, 3 green, and 2 yellow marbles. One marble is randomly chosen What is the probability that the marble picked is red?

Answers

Answer:

4/9 is the answer.

Answer:

there is more red marbles then the others

Step-by-step explanation:

What is the answer to this ? I totally forgot how to this kind of math 5/7 x 1/2

Answers

Answer:

5/14

Step-by-step explanation:

Answer:

5/14 or 0.357

Step-by-step explanation:

just multiply across (5x1 and 7x2 --> 5/14)

Tracy purchases cotton candy in a ratio of 2 pink to 7 blue to sell at a carnival. She has a total of 108 bags. How many bags of each color does she have?

Answers

Answer:

24 pink

84 blue

Step-by-step explanation:

2 + 7 =9

2/9 = x/108

108 ÷ 9 = 12

12 × 2 =24

24 pink

7/9 = x/108

108÷9 = 12

12 ×7 =84

84 blue

can someone help me with these 2 answersss

Answers

Answer:

1. -12

2. 8

Step-by-step explanation:

We are given two equations, both with meanings of variables, making my job a little bit easier wink wink.

Let's start with 5x + 3 when x = -3

Substitute :

5(-3) + 3

-15 + 3

-12

Onto the next :

2x - 4 if x = 6

2(6) - 4

12 - 4

help pleasseeeeeeeeee

Answers

Answer:

B, C, E, F

Step-by-step explanation:

2 multiplied by 4 times
a. 81
b. 8,000
c. 16
20 is the base, 3 is the exponent
a. 81
b. 8,000
c. 16

Answers

Answer:

2×2×2×2=16. hope u like it

1. 16 2x2x2x2= 16 answer is C

2. 8,000 20x20x20=8,000 answer is b

olve for x: 3(x + 1) = −2(x − 1) + 6.

Answers

3(x+1)=3x+3
-2(x-1)+6=-2x+2+6=-2x+8
3x+3=-2x+8
X=1 because 3(1)+3=6 and -2(1)+8=6

Idris bought 9 tomato plants for $33.12. How much did each tomato plant cost?

Answers

33.12 ÷ 9 = 3.68$3.68

Answer:

9 tomat plant cost= 33.12

each tomato plant cost = 33.12 / 9

answer = 3.68 dalours

What number needs to be subtracted from both sides of the equation 40 = 25 + x in order to isolate the variable and solve for x?

Answers

Answer:

x = 15

Step-by-step explanation:

As given, the equation 40 = 25 + x

As on the R.H.S of the equation, there is one constant and a variable x

As to isolate the variable we have to subtract the same constant so that that constant gives 0.

As we have the constant value 25

So, subtract 25 from both side of the equation, we get

40 - 25 = 25 + x - 25

⇒15 = x

∴ we get

x = 15

Two hundred fifteen people have been invited to a reception. The men get a gift of candy that cost $ 6.95 each, and the women get a gift of flowers that cost $ 8.95 each. If the total cost for gifts was $ 1724.25, how many men and how many women were invited?

Answers

The answer is $2000 your welcome

Algebra 1 Please help! thank u sm

Answers

Answer:

1. Slyvia is wrong. You treat the numbers normally when dividing the left side, so 3.61/4.1 = .88. When dividing the exponents, you subtract the numerator from the denominator, so -11-7 = -18. So, you do have .88 * 10^-18, at first, but when you are working in scientific notation you want the decimal to be greater than so, which requires us to add an additional -1, to make it 8.8 instead of 0.88. This is because we want to move the decimal place left one more time. This results in our final answer being 8.8 * 10^-19, which is not Slyvia's answer.

2. Dylan's answer is correct. He subtracted the exponents correctly, then moved the decimal place over one place towards the left.

3. Ethan is wrong. He added the exponents, instead of subtracting. However, you cannot do this, because when you are dividing exponents, you must subtract.

Step-by-step explanation:

I have this acronym I learned called MADSPM, which has helped me a lot. I never learned it in Algebra, but I wish that they had taught it. Each letter corresponds with an exponent rule. If this makes sense, here is what it stands for:

When you multiply, you add.

When you divide, you subtract.

When there are parentheses, you multiply.

In this case, it was solely division. So, you just need to remember division = subtraction, when it comes to exponents.

Hopefully this helped. If you need me to explain it better, please let me know, and I will try. Thanks much & have a wonderful day!

A number is multiplied by 6, and the result is 48.6.

Answers

Answer:

8.1

Step-by-step explanation:

We denote the number as x.

6 * x = 48.6

We can divide both sides by 6 to get,

x = 8.1

Answer:

8.1

Step-by-step explanation:

Let the unknown number be n. Translating this statement into symbols, we get:

6n = 48.6

Solving for n by dividing both sides by 6, we get n = 8.1

The number is 8.1

Mind lending me a hand

Answers

Answer:

Step-by-step explanation:

55 + 74 + 78 + z + z + 45 = 360

252 + 2z = 360

2z = 108

z = 54

Answer: 288

Step-by-step explanation:

78+74+55=207

The degree of a pentagon is 540°

so 540-207=333

so z has to be 333 but the question says +45 and that would make 333 become 378 and we need to get exactly to 333 so the answer cant be 333 but a number that 45 can be added to ,to make 333 for example 54+45=99 so 54 isnt the answer,next is 144+45 which is 189 that doesnt equall 333 so that isnt the answer either lastly is 288+45 which is 333 Thats the answer ...

Templates
+
7.49 x 108
How
many
times should
the decimal pt?
X
I move

Answers

Answer:

maalesef bulamadım ben

Raon has a pitcher that holds three and seven-hundredths liters of orange juice.

If he divides the juice equally into ten glasses, how many liters of juice will be in each glass?

Choose all the correct answers

0.307

3 x 1 x 7 x 1/100

3 x 1/10 + 7 1/1000

3 x 100 + 7 x 1/ 1000

3.07

3 x 1/10 + 7 x 1/100

Answers

Answer:

Step-by-step explanation:

The age at which a person can be tried as an adult

Answers

Answer:

giyi

Step-by-step explanation:

Find the area of parallelogram with base b and height h
b=82.cm
h=16.6cm

Answers

area= b*h

82.* 16.6

area= 1361.2 since i dont know the number after the decimal in 82. that was the only answer i could give

Please answer this question

Answers

y=3x-3

y=mx+b
m: slope, the line goes up 3 and over 1 so the slope is 3/1 which is 3
b: y intercept, the line crosses the y axis at -3 so b is -3

Other Questions

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