Ask question

Ask question

All categories

2 years ago

7

your grade varies directly with the time you study if you study for 40 minutes your grade is an 80 how long should you study to

get a 95

1 answer:

Anna71 [15]2 years ago

7 0

Answer:

47.5 minutes

Step-by-step explanation:

40 min = 80

x min = 95

40/80 = x/95

3800 = 80x

x = 47.5

-Chetan K

You might be interested in

A new LED light bulb uses 10 watts of power. Since energy = power × time , then the energy used for this light bulb can be found

sergiy2304 [10]

9514 1404 393

Answer:

150 Wh

Step-by-step explanation:

We know the energy per bulb is 10 Wh per hour, so the total energy used by 3 bulbs in 5 hours is ...

(10 Wh/(bulb·hour))×(3 bulbs)×(5 hours) = 10·3·5 Wh = 150 Wh

5 0

2 years ago

(m? - 5 m +6 )<br>÷(m - 2)

leonid [27]

Answer:

(m? - 5 m +6 ) ÷ (m - 2) = $\frac{m}{-5m+6} / (m - 2)$

Step-by-step explanation:

Divide the first expression by the second expression.

$\frac{m}{-5m+6} / (m - 2)$

I hope this helps.

4 0

2 years ago

Read 2 more answers

Write the following equation in standard form : 8/7x^3 + x^4 + 6x +1

Leokris [45]

Answer:

x^4 +8/7x^3 + 6x +1

Step-by-step explanation:

8/7x^3 + x^4 + 6x +1

Standard from is from the largest power to the smallest power

x^4 +8/7x^3 + 6x +1

8 0

3 years ago

CAN SOMEONE PLEASE HELP ME?!

Olegator [25]

Answer:

B

Step-by-step explanation:

4 0

2 years ago

Write the quadratic equation whose roots are -4 and -3, and whose leading coefficient is 1.

ludmilkaskok [199]

Answer:

$x^{2} + 7x+12=0$

Step-by-step explanation:

Roots of the equation are -4 and -3.

Quadratic equation can be written as

$(x+4)(x+3)=0\\x(x+3)+4(x+3)\\x^{2} +3x+4x+12\\x^{2} + 7x+12=0$

4 0

3 years ago