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3 years ago

Help me please answer this question

Mathematics

1 answer:

vichka [17]3 years ago

5 0

Answer:

y = 7x + 12

Step-by-step explanation:

Slope (m) = 7

Line is passing through the point (0, 12)

y-intercept (b) = 12

Equation of line in slope-intercept form is given as:

$y = mx + b \\ \\ y = 7x + 12$

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Each day, I use 4 bags of milk for tea. In how much of a day wlll I use 1/2 of a bag of milk?

Slav-nsk [51]

1 day use 4 bags
? day use 1/2 bag

Cross multiply
(1•1/2)/4= 1/2•1/4= 1/8 of the day

In 1/8 of the day 1/2 of bag of milk will be used.

3 0

3 years ago

What is 350/100 as a decimal and percent

igor_vitrenko [27]

3.5
350%. Hope it helped

7 0

3 years ago

The concentration of a drug in the bloodstream C(t) at any time t, in hours, is described by the equationC(t)=100t/t^2+25where t

alisha [4.7K]

Answer:

It will take 5 hours until it reaches its maximum concentration.

Step-by-step explanation:

The maximum concentration will happen in t hours. t is found when

$C'(t) = 0$

In this problem

$C(t) = \frac{100t}{t^{2} + 25}$

Applying the quotient derivative formula

$C'(t) = \frac{(100t)'(t^{2} + 25) - (t^{2} + 25)'(100t)}{(t^{2} + 25)^{2}}$

$C'(t) = \frac{100t^{2} + 2500 - 200t^{2}}{(t^{2} + 25)^{2}}$

$C'(t) = \frac{-100t^{2} + 2500}{(t^{2} + 25)^{2}}$

A fraction is equal to zero when the numerator is 0. So

$-100t^{2} + 2500 = 0$

$100t^{2} = 2500$

$t^{2} = 25$

$t = \pm \sqrt{25}$

$t = \pm 5$

We use only positive value.

It will take 5 hours until it reaches its maximum concentration.

4 0

3 years ago

Somebody please answer these if your good at math and find the slope please ... due inna hour..

saveliy_v [14]

Answer:

See below

Step-by-step explanation:

Find a point on the line where it touches a gridpoint and start from there. Slope is defined as rise/run, so from that point you either go up or down for rise, and left or right for run to find another point closest where the line touches a gridpoint.
A graph with a slope that looks like \ will be negative and a slope that looks like / will be positive

5. 3/2

6. Undefined

7. 7/2

8. 3/6 simplifes to 1/2

9. -1/3

10. -2/3

Please consider marking brainliest :) I can correct mistakes if needed.

6 0

2 years ago

6% of x = 1.2; what is x

Ket [755]

Answer:

x =20

Step-by-step explanation:

6% of x = 1.2

Change percent to decimal form

.06x = 1.2

Divide each side by .06

.06x / .06 = 1.2/.06

x =20

4 0

3 years ago

Read 2 more answers