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3 years ago

7

Devon's Burgers cooks its burgers either well done or medium. The restaurant served 30 burgers last night, 30% of which were wel

l done. How many well-done burgers did the restaurant serve?

1 answer:

fgiga [73]3 years ago

5 0

Answer: 9 well-done burgers

Step-by-step explanation:

30 times 30% equals 9

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It takes 1 yard 2 feet of material to make a pillow. How much material is required to make 8 pillows?

Monica [59]

40 feet or 13 yards and 1 foot

using the conversion

1 yard = 3 feet then 1 yard 2 feet = 5 feet ← material for 1 pillow, hence

8 pillows require 8 × 5 = 40 feet

7 0

3 years ago

Witch number are irrational <br><br> A.11<br> B.0151155111555...<br> C.-14<br> D.5/7<br> E.(9.4)

Ludmilka [50]

Answer:

B. .0151155111555...

Step-by-step explanation:

A.11 integer (rational)

B.0151155111555... non terminating or repeating decimal ( irrational)

C.-14 integer (rational)

D.5/7 fraction (rational)

E.(9.4) 94/10 (rational)

6 0

4 years ago

Read 2 more answers

Now expand the the expression

sveticcg [70]

Answer:

5x + 4

Step-by-step explanation:

1/2 (10z + 8)

= 1/2 x 10z + 1/2 x 8

= 5z + 4

Hope this helps!!

5 0

3 years ago

Thelma ordered 2 tacos and 1 quesadilla and paid $5.51. Louise ordered 2 quesadillas and 1 taco and paid 7.09 find the cost for

allochka39001 [22]

Answer:

A single taco costs $1.31

A single quesadilla costs $2.89

Step-by-step explanation:

Let's suppose that:

T is the price of a single taco.

Q is the price of a single quesadilla.

Thelma ordered 2 tacos and 1 quesadilla, and she paid $5.51, this can be written as:

2*T + 1*Q = $5.51

And we know that Louise ordered 2 quesadillas and 1 taco, and she paid $7.09, this can be written as:

1*T + 2*Q = $7.09

Then we have a system of equations:

2*T + Q = $5.51

T + 2*Q = $7.09

To solve this, we first need to isolate one of the variables, let's isolate T in the second equation:

T = $7.09 - 2*Q

Now we can replace this in the first equation:

2*($7.09 - 2*Q) + Q = $5.51

Now we can solve this for Q.

2*$7.09 - 2*(2*Q) + Q = $5.51

$14.18 - 4*Q + Q = $5.51

$14.18 - 3*Q = $5.51

$14.18 - $5.51 = 3*Q

$8.67 = 3*Q

($8.67)/3 = Q

$2.89 = Q

This means that the price of a single quesadilla is $2.89

Now we can use the equation:

T + 2*Q = $7.09

T + 2*($2.89) = $7.09

T + $5.78 = $7.09

T = $7.09 - $5.78 = $1.31

The price of a single taco is $1.31

3 0

3 years ago

Let f(x) be the probability density function for the lifetime of a manufacturer's highest quality car tire, where x is measured

Romashka-Z-Leto [24]

Answer:

P(20000<x<50000)

Step-by-step explanation:

Given that f(x) is a probability density function for the lifetime of a manufacturer's highest quality car tire, where x is measured in miles.

We have to explain the meaning of integral

20000 to 50000 f(x) dx

= $\int\limits^{50000}_{20000} }f(x) dx \\=F(50000)-F(20000)$

where F is the cumulative function.

Hence the integral is the probability that x lies between 20000 and 50000

Hence the integral is nothing but

$P(20000$

5 0

3 years ago