Mathematics High School

Clara and Ben each have a rock collection. • The number of rocks in Clara's collection can be represented by, • The number of rocks in Ben's collection is 4 times the number of rocks in Clara's collection. • The total number of rocks in both collections is 225. What is x, the number of rocks in Clara's collection?​

Answers

Answer 1

Answer:

ASD

Step-by-step explanation:

Related Questions

Please help due today

Answers

Answer:

3 & 1

6 & 2

9 & 3

12 & 4

Step-by-step explanation:

Hope that helps!

Dollars- 9
Pounds- 2, 4

Sam wants a television.He can either buy or rent it.The cost of buying it is $960.Sam would pay a deposit of 30% followed by 12 equal month after payments.
1)Calculate the deposit. 2)Calculate each monthly payment.​

Answers

1.) 288
2.) 56

The deposit would be 960x.30 = 288
Monthly payment would be 960-288= 672
672/12= 56

Answer:

1.  deposit = $288

2. monthly payments = $56

Step-by-step explanation:

960 x 0.3 = 288

960 - 288 = 672

672/12 = 56

Write a story that can be represented by the equation
y=x+ 1x

Answers

Jake started a new cell phone plan. He had a starting fee of 15 dollars. For every half hour of calls he gets 2 dollars added to his final bill. He calls his friends for 2 hrs for the first month. What is his bill for the first month?

Which statement(s) describe perpendicular lines? Choose ALL that apply.

A. Perpendicular lines never meet or cross.

B. Perpendicular lines form a 90 degree angle.

C. Perpendicular lines intersect.

Answers

Perpendicular line never meet so the answer is A
The answer is B & C. Parallel line are the lines that never meet or cross.

i have to find the value of x please help me will give brainliest to correct answer​

Answers

Answer:

C. x = 5

Step-by-step explanation:

48 = 7x + 13

-13           -13

35 = 7x

5 = x

Sandra is buying new carpet for the floors of her house. The cost depends on the area of the floors. Which is the dependent variable, and which is the independent variable?

A. The dependent variable is the cost, and the independent variable is the area of the floors.
B. The dependent variable is the number of walls in the house, and the independent variable is the cost.
C. The dependent variable is the cost, and the independent variable is the number of walls in the house.
D. The dependent variable is the area of the floors, and the independent variable is the cost.​

Answers

Answer:

A.The dependent variable is the cost, and the independent variable is the area of the floors.

Step-by-step explanation:

Because I had a quiz with the same question and got it right, and because the paragraph says "The cost depends on the area of the floors."

Answer:

A.

Step-by-step explanation:

"The cost depends on the area of the floors"

The independent variable is the cause and the dependent variable is the effect. Took the test.

A store owner buys a sweater at $12 and sells it for $15. What was the
percentage of the price increase?

Answers

Answer:

it would be a 25% increase.

Step-by-step explanation:

15-12 / 12 * 100 =

3/12 * 100 = 25

Solve for X when......................

Answers

Answer:

-2 2

3 0

-1 -5

Step-by-step explanation:

-2 + 0 = -2 -5 + 7 = 2

1 + 2 = 3 0 + 0 = 0

3 + (-4) = -1 - 4 + (-1) = -5

what's the answer to 9 x (-6)=

Answers

Answer:

-54

Step-by-step explanation:

a positive times a negative is a negative always

Answer:

Answer: -54

Multiply them and add a negative symbol

The height, h, of an object that is projected straight downward from a ledge 500 feet above the ground with initial velocity 10 feet per second is given by the equation h = 500 - 10t - 16t^2 where t = time in seconds. After how many seconds will the object be 100 feet above the ground?

A. 2.21 seconds
B. 3.85 seconds
C. 4.70 seconds
D. 40 seconds ​

Answers

The answer to this question is C

Choose the correct simplification of (5xy^7)^2(y^2)^3.

Answers

Answer:

25x^2y^20

Step-by-step explanation:

If the RADIUS of a circle is 9 meters, then the DIAMETER is? *
25 points
4.5 meters
12 meters
18 meters
27 meters

Answers

The diameter is 18 meters, d = 18m

Work out (5.32 x 10^-7): (2.5 x 10^-5)
Give your answer in standard form​

Answers

Answer:

1.33×10^-6

Step-by-step explanation:

5.32 x 10^-7= 5.32×10^(-5-2)= 5.32×10^-2×10^(-5)

=0.0532×10^-5

(0.0532×10^-5) (2.5 x 10^-5)

0.0532×2.5 × 10^-5

0.133×10^-5= 1.33×10^-1 ×10^-5

1.33×10^-6

0.02128 is the standard form of 5.32 x 10⁻⁷/2.5 x 10⁻⁵

What is Number system?

A number system is defined as a system of writing to express numbers.

The given fraction is 5.32 x 10⁻⁷/2.5 x 10⁻⁵

Simplify using exponent rule with same base

[tex]a^{m} a^{n} =a^{m+n}[/tex]

Now 5.32/2.5×10⁻⁷×10⁵

5.32/2.5×10⁻⁷⁺⁵

Calculate the sum or difference

5.32/2.5×10⁻²

Convert fraction into decimal

2.128×10⁻²

Express in standard form 0.02128

Hence, 0.02128 is the standard form of 5.32 x 10⁻⁷/2.5 x 10⁻⁵

To learn more on Number system click:

https://brainly.com/question/22046046

#SPJ2

A triangular prism has a base edges 2cm, 4cm, and 5cm long. It’s lateral area is 231cm . What is the height of the prism

Answers

Answer:

For your specific problem, h = 300 / (4 + 5 + 6) = 300 / 15 = 20

I need help this is extremely hard

Answers

Answer:

what variable do you want to find?

Step-by-step explanation:

Quadratic in standard form: 6x^2 -5x-4

Answers

Answer:

Factor by grouping.

(2x+1)(3x−4)

Step-by-step explanation:

Evaluate x2 when x =5

Answers

(5)2 which is 5 times 2. The answer is 10.

Answer:

10

Step-by-step explanation:

If x=5 then

Plug in the x

(5)2 then multiply

(5)2=10

One of the legs of a right triangle measures 2 cm and its hypotenuse measures 18 cm.
Find the measure of the other leg. If necessary, round to the nearest tenth.

Answers

Answer:

17.9

Step-by-step explanation:

what fraction in lowest terms represents the valur of c in the equation 3(4x -6) = -3(5 -2x)

Answers

Answer:

3(4x - 6) = - 3(5 - 2x)

12x - 18 = - 15 +6x

12x - 6x = - 15 +18

6x = 3

x = 1/2

3 ve 4 ün ortak katları acil cevap lütfen​

Answers

Jama works for ABC, pays 1/5 of his social service salary, 1/10 of his rent, 3/5 of his children's education with $ 1800 left, and attends night classes at university and earns $ 500.

produce all his wages?

Identify the slope (m) given the equation of the line.
y- 1 = -3(x + 2)
I need help please

Answers

hope this helps you out !!

Slope is -2 and (1,4) What is the equation of the line in point slope form?

Answers

y-4=-2(x-1) is the correct answer

Plz help I’ll give brainliest! Look at MN on the coordinate plane.
What is the distance between the endpoints of MN?
A. 5 units
B. 8 units
C. 6 units
D. 10 units

Answers

The answer is b.8 units

A designer lamp costs £475
It is reduced by 30% in a sale
How much does the lamp now cost?

Answers

Answer:

$332.50 is the new discounted price

Step-by-step explanation:

30% of 475

30/100 x $475. 00

= $142.50

$475.00-$142.50=$332.50

and thats the answer

what is volume of a trapezoid prism?

Answers

Answer:

If the prism length is L, trapezoid base width B, trapezoid top width A, and trapezoid height H, then the volume of the prism is given by the four-variable formula: V(L, B, A, H) = LH(A + B)/2. In other words, multiply together the length, height, and average of A and B.

Step-by-step explanation:

Solve each system of equations using the substitution method

Give the solution in (x,y) form​

Answers

Step-by-step explanation:

y=-3+5x

substitute y into equation 2

3x-8y=24

3x-8(-3+5x)=24

3x+24-40x=24

x=0

y=-3+5(0)

y=-3

(x,y)=(0,3)

Determine the common factors and HCF for each of the following terms.

b) 2b, 3b
e) 5bc, 2c2, 3cd
f) 4a2b, 8b2c, 6bcd

Help please and explanation..

Answers

Answer:

b) b

e) c

f) 2b

Step-by-step explanation:

you look for numbers that can divide them all at once

Find the value
of 6y^2 - 24y - 51 when y=-2

​

Answers

Answer:

21

Step-by-step explanation:

6(y^2) - 24y -51 = 6 4 - 24y - 51

(6 4) - (24y) - 51 = 24 - -48 - 51

(24 - -48) - 51 = 72 - 51

72 - 51 = 21

please help i need this rn. no spammers please.

Answers

Answer:

x = -6 & y= 42

Step-by-step explanation:

I hope this helps :)

x = 6, y = -42

Substitution:

-7x = -5x - 12

-2x = -12

x = 6

When x = 6,

y = -7(6) = -42

Can somebody help me. Will mark brainliest.

Answers

2-true i don’t even know
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