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2 years ago

Can someone help me again please. I will pay extra fr please

Mathematics

2 answers:

otez555 [7]2 years ago

6 0

Answer:

y = 3x + 1

Step-by-step explanation:

fgiga [73]2 years ago

3 0

Answer:

y = 3x + 3

Step-by-step explanation:

First, you check for the y-intercept, which is 3 for this equation.

In order to find the slope, pick two points and apply the slope formula.

I would just use rise/run. The slope should be 3/1.

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Bill is in a class of 15 boys and 35 girls 40 percent of the students in the class take the bus to school how many students do n

GREYUIT [131]

the gender of the kids does not matter so it can be discarded.

you add up how many boys and girls in the class to make a total of 50 kids

your 100% is 50

meaning 40% of 50 is 20

so if 20 kids took the bus to school then 30 did not take the bus.

6 0

2 years ago

If you invest $4000 at 9% interest compounded annually, in how many years will you have $20,000. Give your answer the nearest te

Masteriza [31]

Answer:

18.7 years

Step-by-step explanation:

This is a compound interest problem and the following variables have been given;

Principal = 4000; this is the amount o be invested

APR = 9%; this is the compound interest to be earned

Accumulated amount = 20,000

We are required to determine the duration in years. We apply the compound interest formula;

$A=P(1+r)^{n}$

$20000=4000(1+\frac{9}{100})^{n}\\20000=4000(1.09)^{n}\\5=(1.09)^{n}$

The next step is to introduce natural logarithms in order to determine n;

$ln5=nln(1.09)\\n=\frac{ln5}{ln(1.09)}\\n= 18.675$

The number of years required is thus 18.7 years

6 0

3 years ago

I need help please.

enot [183]

0.2 is rounded to the nearest tenth

3 0

2 years ago

Read 2 more answers

Zach and Ginny are building model cars. Ginny's car is 2 more than 3 times the length of Zach's car. The sum of the lengths of b

Neporo4naja [7]

Answer:

$x+(3x+2)=30$

Step-by-step explanation:

Let

x ----> the length of Zach's car

y ----> the length of Ginny's car

we know that

The sum of the lengths of both cars is 30 inches

$x+y=30$ ----> equation A

Ginny's car is 2 more than 3 times the length of Zach's car

$y=3x+2$ ----> equation B

substitute equation B in equation A

$x+(3x+2)=30$

8 0

2 years ago

Write an equation of the line that passes through (0, 4) and (0, -3)

andreev551 [17]

Answer: Slope is undefined. x=0

slope calculation: -3-4/0-0 = -7/0 and anything divided by 0 is undefined

the x value in the coordinates is 0 so it’s x=0 line.

vertical lines always have undefined slopes

8 0

2 years ago

Read 2 more answers