Ask question

Ask question

All categories

2 years ago

6

Brittany has a recipe which yields 25 hamburgers, but she only needs to make 10. If the original recipe calls for nine pounds of

ground beef, how much
ground beef will she need to use?
A- 10 pounds
B- 7.5 pounds
C- 54 pounds
D- 3.6 pounds

2 answers:

tankabanditka [31]2 years ago

4 0

The answer is b
Because it makes sense

fomenos2 years ago

4 0

B is the correct answer the your problem

You might be interested in

the frame of a picture is 28 cm by 32 cm outside and is of uniform width.What is the width of the frame if 192 cm2 of the pictur

natita [175]

Answer:

The width of the frame is equal to $8\ cm$

Step-by-step explanation:

Let

x-------> the width of the frame picture

we know that

$(28-2x)(32-2x)=192$

$896-56x-64x+4x^{2} =192$

$4x^{2}-120x+704=0$

Simplify

$x^{2}-30x+176=0$

The formula to solve a quadratic equation of the form $ax^{2} +bx+c=0$ is equal to

$x=\frac{-b(+/-)\sqrt{b^{2}-4ac}} {2a}$

in this problem we have

$x^{2}-30x+176=0$

so

$a=1\\b=-30\\c=176$

substitute in the formula

$x=\frac{30(+/-)\sqrt{(-30)^{2}-4(1)(176)}} {2(1)}$

$x=\frac{30(+/-)\sqrt{196}} {2}$

$x=\frac{30(+/-)14} {2}$

$x=\frac{30+14} {2}=22\ cm$ ----> this solution is not logic

$x=\frac{30-14} {2}=8\ cm$

The width of the frame is equal to $8\ cm$

8 0

3 years ago

The hypotenuse of a right triangle is 13cm long. the longer leg is 7 cm longer than the shorter leg. find the side lengths of th

Ad libitum [116K]

$5^2 + 12^2 = 13^2$

is the second or third Pythagorean triple on the list, which gives us the answer directly.

But if we didn't know that, let x be the short leg:

$x^2 + (x+7)^2 = 13^2$

$2x^2 + 14 x + 49 - 169 = 0$

$x^2 + 7x - 60 = 0$

$(x+12)(x-5)=0$

Rejecting the negative root, x=5, other side 12, the Pythagorean triple we found.

8 0

3 years ago

plz help !! write two real world situations that you can model using the exponential function f(x)=2 to the power of x

Margaret [11]

Answer:

Two real world situations are shown below.

Step-by-step explanation:

Initial population of a certain bacteria is 1 thousand and the population doubles in each hour. So, population of bacteria (in thousands) after x hours is

$f(x)=1(2)^x$

$f(x)=(2)^x$

A person invests 1 lakh rupees in shares and the amount is twice at the end of each year. So, total amount (in lakhs) after x years is

$f(x)=1(2)^x$

$f(x)=(2)^x$

7 0

3 years ago

A deep sea diving bell is being lowered at a constant rate. After 10 minutes, the bell is at a depth of 600 ft. After 40 minute

Degger [83]

<h2>Average rate of lowering per minute = 36.67 ft/min</h2>

Step-by-step explanation:

After 10 minutes, the bell is at a depth of 600 ft

After 10 minutes

Depth of bell = 600 ft

After 40 minutes the bell is at a depth of 1,700 ft.

After 40 minutes

Depth of bell = 1700 ft

Time gap = 40 - 10 = 30 minutes

Depth fallen = 1700 - 600 = 1100 ft

We have

Depth fallen = Average rate of lowering per minute x Time gap

1100 = Average rate of lowering per minute x 30

Average rate of lowering per minute = 36.67 ft/min

7 0

3 years ago

To solve this expression, which operation should be performed last?

Vladimir79 [104]

D. Add 5 to 2 because you start with the parentheses first

6 0

2 years ago