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3 years ago

6. Write a fact with the same sum as 7 + 5. urt Publishing Company

Mathematics

1 answer:

Tomtit [17]3 years ago

8 0

Answer:

You better explain this question or i am just going to keep writing 12

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Please solve much appreciated

tankabanditka [31]

Answer:

Two equivalent fractions with whole numbers may be 180/150, or 6/5

The height of the tree is 39.6 feet.

Explanation:

The diagram provides the proportion of the heights to the shadows:

$\frac{x}{33}=\frac{1.8}{1.5}$

From that you are asked (i) to simplify the fraction of the right side to one with whole numbers.

You can do that in two steps by multiplying both numerator and denominator by 10:

$\frac{1.8\times 10}{1.5\times 10}=\frac{180}{150}$

You can simplify that fraction if you divide by the greatest common factor of 180 and 150, which is 30:

$\frac{180/30}{150/30}=\frac{6}{5}$

The second part (ii) asks to find the height of the tree, that is x. To solve for x you can multiply both sides by the denominator of the fraction on the left and then simplify:

$\frac{x}{33}=\frac{6}{5}\\ \\ x=\frac{6\times 33}{5}\\ \\ x=\frac{198}{5}=39.6$

Thus, the height of the three is 39.6 feet.

6 0

3 years ago

Are the lines parallel or perpendicular? Y=x+4 and y=x-2

skelet666 [1.2K]

Answer:

The lines are parallel

Step-by-step explanation:

3 0

2 years ago

A farmer has a total of 23 pigs and chickens. The 23 animals have a total

andre [41]

Answer:

7 pigs, 16 chickens

Step-by-step explanation:

p= pigs, c= chickens, legs= 60, number of pigs & chickens= 23

System of Equations:

Equation 1: $p+c=23$ would be $23-p=c$
Equation 2: $4p+2c=60$ for the legs

Then, use substitution & solve:

$4p+2(23-p)=54\\4p+46-2p=54\\4p-2p=8\\2p=8\\p=7$

Now, plug $p=7$ back into $23-p=c$ to get c

$23-p=c\\23-7=c\\c=16$

Answer: 7 pigs, 16 chickens or $p=7$ and $c=16$

To check your work, plug those solutions back into the system.

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(I hope that helps & good luck! <3)

3 0

2 years ago

How to find a slope between two points?

Jobisdone [24]

Well the best way is to plug into the slope equation
$m = \frac{rise}{run} = \frac{y2 - y1}{x2 - x1}$
Where (x1, y1) and (x2,y2) are ordered pairs on the xy plane.

4 0

4 years ago

Read 2 more answers

What is 2x+3y=17 if y=-3

laila [671]

Answer:

x = 13

Step-by-step explanation:

ur welcome

6 0

3 years ago

Read 2 more answers