MATHEMATICS HIGH SCHOOL

I need help with this question! Will mark brainliest :)

Answers

Answer 1

Answer:

Answer:

A. y = 5/4x - 3

B. slope is 5/4

C. y intercept is -3

D. Increasing

Step-by-step explanation:

5x - 4y = 12

Slope intercept form: y = mx + b

4y = 5x - 12

y = 5/4x - 3

Slope is 5/4

Y intercept is when x = 0 so it is -3

the slope is positive, therefore the line is increasing

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What is the height of a triangular plate if its area is 1225 square centimeters and the length of its base is 35 centimeters, and how can you calculate this height using the formula for the area of a triangle?

Answers

Answer:

height = 70 cm

Step-by-step explanation:

the area (A) of a triangle is calculated as

A = $(1)/(2)$ bh ( b is the base and h the height )

given b = 35 and A = 1225 , then

1225 = $(1)/(2)$ × 35 × h

1225 = 17.5h ( divide both sides by 17.5 )

$(1225)/(17.5)$ = $(17.5)/(17.5)$ h , that is

70 = h

then the height of the triangle is 70 cm

You spin the spinner twice.9
What is the probability of landing on an 8 and then landing on a 9?
Write your answer as a fraction or whole number.
Submit

Answers

Answer:the Answer is 1/9

Step-by-step explanation:

Two cell phone companies have different rate plans. Runfast has monthly charges $25 plus $10 per gig of data. B A &D’s monthly charge is $18 plus 15 per gig of data. Your task is to determine under what circumstances each company has the better pricing. You will derive and solve a set of equations, graph those equations, and evaluate the meanings for these events. Don’t worry; I have a series of questions to guide you through the process. Good luck!Determine the equation for the monthly charges for Runfast and BA&D.

Runfast= $35 per month

BA&D= $33 per month

Answers

Given:
Runfast = 25 + 10g
BA&D = 18 + 15g

Runfast = 35 per month
35 = 25 + 10g
35 - 25 = 10g
10 = 10g
10/10 = g
1 = g

BA&D = 33 per month
33 = 18 + 15g
33 - 18 = 15g
15 = 15g
15/15 = g
1 = g

If g = 2;
Runfast = 25 + 10(2) = 25 + 20 = 45
BA&D = 18 + 15(2) = 18 + 30 = 48

Based on my computation, if the gig of data is only equivalent to 1g then BA&D is cheaper. However, if 2gig or above is used, then Runfast is cheaper.

Mr. Johnson has $15,000 to invest. Part of it is put in the bank at 4 percent, and part he puts in a savings and loan at 7 percent. If his yearly (simple) is $951, how much did he invest at each rate?

Answers

Answer:

$3300 at 4%

$11700 at 7%

Step-by-step explanation:

Total investment = $15000

Total simple interest on investment = $951

Investment A:

Rate = 4% =0.04

Investment B:

Rate = 7% =0.07

Simple interest (S. I) = principal * rate * time

(S. I on investment A + S. I on investment B)

Let principal amount in investment A = A

principal amount in investment B = B

(A * 0.04 * 1) + (B * 0.07 * 1) = $951

0.04A + 0.07B = $951 - - - - (1)

A + B = $15000 - - - - (2)

from (2)

A = 15000 - B

Substitute A = 15000 - B into (1)

0.04(15000 - B) + 0.07B = 951

600 - 0.04B + 0.07B = 951

600 + 0.03B = 951

0.03B = 951 - 600

0.03B = 351

B = 351 / 0.03

B = $11700

From (2)

A + B = $15000

A + $11700 = $15000

A = $(15000 - 11700)

A = $3300

Which is the same as 6 mph?

Answers

9656,064 m/h 31680 ft/h 965606.4 cm/h 9,6560064 Km/h 10650 yards/h 380160hope that helped

i would assume 9.6 kph

If c = the number of cars in a parking lot, which algebraic expression represents the phrase below? the number of cars increased by 9

Answers

The answer is:
c + 9.
This is because c is the number of cars. If you increase, you are adding. So you are adding 9 to the number you have in the parking lot. This makes your answer c + 9.

Answer: c+9

Step-by-step explanation:

just took the test <3

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