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4 years ago

If it takes Bianca 30 minutes to bake 2 pans of brownies, how many pans of brownies can she bake in 7 hours?

Mathematics

1 answer:

Sedbober [7]4 years ago

8 0

Answer:

Bianca can make 28 pans of brownies in 7 hours

Step-by-step explanation:

As we know, 1 hour = 60 minutes

so, 1/2 hour = 30 minutes

Bianca takes 1/2 hour to make pans of brownies = 2 pans

Bianca takes 1 hour to make pans of brownies = 2 / (1/2) pans

Bianca takes 7 hour to make pans of brownies = 4 * 7 pans

= 28 pans

So, Bianca can make 28 pans of brownies in 7 hours.

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William and his three friends went out for lunch. The bill was $34 and they left a 15% tip. They want to split the bill equally.

slavikrds [6]

Answer:

Each person will pay $9.78

Step-by-step explanation:

Given that:

Amount of bill = $34

Tip = 15%

Amount of tip = $\frac{15}{100}*34$

Amount of tip = 0.15 * 34

Amount of tip = $5.10

Amount after bill = 34 + 5.10 = $39.10

Number of people = William + three friends = 4

Per person share = $\frac{39.10}{4}$

Per person share = $9.775

Rounded to two decimal places

Per person share = $9.78

Hence,

Each person will pay $9.78

8 0

3 years ago

Please help me solve this problem

dybincka [34]

Answer:

Step-by-step explanation:

$\frac{1-10}{0-3} =\frac{-9}{-3} =3$

slope formula: $\frac{y_{2} -y_{1} }{x_{2}-x_{1} }$

4 0

3 years ago

If cot x = .78, what is tan x

Vanyuwa [196]

We know, tan x = 1 / cot x
So,tan x = 1/ 0.78
tan x = 1.28

In short,Your Answer would be 1.28

Hope this helps!

3 0

3 years ago

How do I solve the system of equations<br> {Y=x^2+2x}<br> {Y=-x-2}

Minchanka [31]

Graph it on the Ti-84 and use the trace function to find the intersection.

The answer is

(-3,3)

7 0

4 years ago

If a1 = 8 and an = an-1 + 5 then find the value of a5.

Nimfa-mama [501]

Step-by-step explanation:

A1=8

A2=A1+5 plug 8 into A1 here. After getting the value, put into next equation. And repeat until you get A5

A3=A2+5

A4=A3+5

A5=A4+5

5 0

3 years ago