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3 years ago

14

I need help please and thank you

1 answer:

mestny [16]3 years ago

4 0

4 x 5/7 = 20/7
20/7 = 2 6/7

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Myron is cooking meat. The double number line shows that he needs 1212 hours to cook 55 kilograms of meat. Based on the ratio sh

Alex Ar [27]

Answer: He needs 20 hours for making 33 kg of meat.

Step-by-step explanation:

Since, if a a thing in quantity $x_1$ takes time $t_1$ and that thing in quantity $x_2$ takes time $t_2$

Then, we know that,

$x_1\times t_1=x_2\times t_2$

$\frac{x_1}{x_2} = \frac{t_2}{t_1}$

Here, $x_1=55$ kg, $t_1=12$ hours, $x_2= 33$ kg and $t_2=?$

Thus, $\frac{55}{33} = \frac{t_2}{12}$

⇒ $t_2=\frac{55}{33}\times 12$

⇒ $t_2=\frac{5}{3}\times 12$

⇒ $t_2=20$

Thus, he needs 20 hours to make 33 kg of meat.

7 0

3 years ago

Read 2 more answers

Jessie is fencing in a rectangular plot outside of her back door so that she can let her dogs out to play. She has 60 feet of fe

DerKrebs [107]

Answer:

Dimensions are length 15 feet and width 30 feet.

Maximum area of the plot is 450 feet².

Step-by-step explanation:

Let the length of the plot = x feet and width = y feet.

Since, the amount of fencing to be applied on the three sides of the plot is 60 feet.

We have,

$2x + y = 60$ i.e. $y=60-2x$

Now, Area of the rectangular plot = Length × Width

i.e. Area of the rectangular plot = $x \times y$

i.e. Area of the rectangular plot = $x\times (60-2x)$

i.e. Area of the rectangular plot = $-2x^2+60x$

<em>Since, the maximum of the quadratic equation $ax^2+bx+c$ will be obtained at $x= \frac{-b}{2a}$ .</em>

Then, the maximum of the area of the plot is at the point $x= \frac{-60}{2\times (-2)}$ i.e. x= 15

Then, maximum area of the rectangular plot = $-2x^2+60x$

i.e. maximum area of the rectangular plot = $-2\times 15^2+60\times 15$

i.e. maximum area of the rectangular plot = -450+900 = 450 feet²

Hence, Maximum area of the plot is 450 feet².

Then, $y=60-2\times 15$ implies $y=60-30$ i.e. y= 30.

Hence, the maximum area is enclosed by the length 15 feet and width 30 feet.

6 0

3 years ago

Please answer this! & explain how to get the answers.

konstantin123 [22]

(x - 2) • (x - 3) • (x - 4) • (x - 5)

Step by step solution :

Step 1 :

Equation at the end of step 1 :

((((x4)-(14•(x3)))+71x2)-154x)+120

Step 2 :

Equation at the end of step 2 :

((((x4) - (2•7x3)) + 71x2) - 154x) + 120

The factor(s) are:

of the Leading Coefficient : 1

of the Trailing Constant : 1 ,2 ,3 ,4 ,5 ,6 ,8 ,10 ,12 ,15 , etc

6 0

3 years ago

What is a complementary angle?

Lana71 [14]

Answer:

A complementary angle are angles that add up to 90 degrees. For example, a 30 degree angle and a 60 degree angle are complementary angles because 30+60=90

Step-by-step explanation:

7 0

3 years ago

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(01.01 MC)Why is 2 + (−3) equal to −1?

Mama L [17]

Answer:

Think of it like a number line. If you start at 2 and move three to the left you land on -1.

4 0

3 years ago

Read 2 more answers