3 years ago

Solve the following system of equations using substitution.

Mathematics

1 answer:

stira [4]3 years ago

4 0

It is A maybe use your calculator

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What is the radius of a circle with a circumference of 8 ft to the nearest hundredth

agasfer [191]

Answer:

1.27

Step-by-step explanation:

$r=\frac{C}{2\pi }$

$\frac{8}{2\pi }$

= $1.27$

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3 years ago

Maria bought a blouse on sale for 30% off. The sale price was $27.76. What was the original

GuDViN [60]

Answer:

$19.43

Step-by-step explanation:

p x 0.30= 8.328

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A scientist writes the equation n(h)100e^0.25h to model the growth of a certain bacteria in a petri dish, where N represents the

Natasha2012 [34]

Answer: Second option is correct.

Step-by-step explanation:

Since we have given that

$n(h)=100e^{0.25h}$

where, N represents the number of bacteria after 'h' hours.

So, we have given that there are 450 bacteria present.

N = 450

According to question,

$450=100e^{0.25h}\\\\\frac{450}{100}=e^{0.25h}\\\\4.5=e^{0.25h}\\\\\text{Taking natural log 'ln' on both sides}\\\\\ln (4.5)=0.25h\\\\1.50=0.25h\\\\h=\frac{1.50}{0.25}\\\\h\approx 6\ hours$

Hence, Second option is correct.

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3 years ago

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A local hamburger shop sold a combined total of 617 hamburgers and cheeseburgers on Wednesday. There were 67 more cheeseburgers

Assoli18 [71]

Answer:

check the picture

Step-by-step explanation:

I hope you get it

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3 years ago

Can you do this 3(2x-6)-7x+4?

Serjik [45]

3(2x-6)-7x+4
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X=14

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3 years ago