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3 years ago

Gregory brought 11 pumpkins to school for pumpkin-carving contest. Each pumpkin

Mathematics

1 answer:

Zigmanuir [339]3 years ago

5 0

Answer:

Step-by-step explanation:

I need help too

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The ratio of dogs and cat in the neighborhood was 2 to 5 . if there 10 dogs ,predict how many cats were there

alexandr402 [8]

2:5
Multiply both parts of the ratio by 5 to get the answer of
10:25

7 0

4 years ago

Read 2 more answers

There are two brands of Corn Flakes, Post and Kellogs. Each brand has the same size box. However, because of each brand’s fillin

kaheart [24]

Answer:

Step-by-step explanation:

IDK WHY LOL

4 0

3 years ago

Help please pleaseeeee

34kurt

Answer:

1) 3x+4y=8

4y=-3x+8

4y/4=-3x/4+8/4

y=-3/4x+2

slope=-3/4

Y intercept=2

2) 9x+35=-5y

-5y/-5=9x/-5+35/-5

y=-9/5x-7

slope=-9/5

y intercept=-7

3)2y-6=-6x

2y−6+6=−6x+6

2y /2−6x/2+6 /2

y=−3x+3

slope is -3x

y intercept is 3

8 0

3 years ago

A population of 490 bacteria is introduced into a culture and grows in number according to the equation below, where t is measur

Lera25 [3.4K]

Answer:

Rate of growth of bacteria when t=2 is 3.09 bacteria/hour

Step-by-step explanation:

As equation is not given so considering the Equation of growth of bacteria as

$P=490(1+\frac{4t}{50+t^{2}})$

We have to find the rate at which population is growing. To do so differentiate above equation w.r.to 't'

$\frac{dP}{dt}=\frac{d}{dt}490(1+\frac{4t}{50+t^{2}})\\\\\frac{dP}{dt}=490(\frac{d}{dt}(1)+\frac{d}{dt}(\frac{4t}{50+t^{2}}))\\\\\frac{dP}{dt}=490(0+\frac{4(50+t^{2})-(4t)(2t)}{(50+t^{2})^{2}})\\\\\frac{dP}{dt}=490(\frac{200+4t^{2}-8t^{2}}{(50+t^{2})^{2}})\\\\\frac{dP}{dt}=490(\frac{4(50-t^{2})}{(50+t^{2})^{2}})\\\\at\,\,t=2hours\\\\\frac{dP}{dt}=490(\frac{4(50-(2)^{2})}{(50+(2)^{2})^{2}})\\\\\\\frac{dP}{dt}=490(\frac{4(50-4)}{(50+4)^{2}})\\\\=3.09$

Rate of growth of bacteria when t=2 is 3.09 bacteria/hour

8 0

3 years ago

Rachael is running a 5-kilometer race with 200 participants. She knows she can complete 1 kilometer in 7.5 minutes, and she plan

chubhunter [2.5K]

Answer:

0.25

Step-by-step explanation:

as she usually finishes the race in 7.5 and her time for breaks are at 7.75 all you have to do is solve a simple equation of : 7.75 - 7.50 = 0.25

5 0

3 years ago