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4 years ago

I don’t how to solve this problem

Mathematics

2 answers:

ANEK [815]4 years ago

8 0

Answer:

Step-by-step explanation:

The answer is C

If the question is asking to figure out how many times larger than something else is you just need to divide the two variables that they ask for (in this case the biggest lake and the smallest).

890/90 = 11.125 which rounds up to 11.13

Illusion [34]4 years ago

6 0

If you divide the larger lake's size by the smaller lake's size, you'll get the answer.
890/80=11.125
Rounds off to 11.13
Answer C
***
example, 10/2=5. 10 is 5 times larger than 2.

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2x/7 divides by 4y/14?

Sonbull [250]

Remember that $\frac{\frac{a}{b}}{\frac{c}{d}}=(\frac{a}{b})(\frac{d}{c})=\frac{ad}{bc}$

try and simpliy each first
4y/14=(2/2)(2y/7)=2y/7

so 2x/7 divided by 2y/7
$\frac{\frac{2x}{7}}{\frac{2y}{7}}=(\frac{2x}{7})(\frac{7}{2y})=\frac{(2x)(7)}{(2y)(7)}$ = $\frac{14x}{14y}=\frac{x}{y}$

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3 years ago

Can someone help me with #69

alex41 [277]

Ok, so you have a right angle, a given angle, and a given side for the left triangle. We are going to call angle 47° angle A. So angle A=47°, the side connecting the two triangles is directly opposite A making it side "a". We are calling the right angle C and the hypotenuse (the longest side which is 11) "c". So, Sin A=a/c and since we don't have "a" we multiply both sides by "c" changing it to (c Sin A)=a. 11•Sin(47°)=a

11•(0.7313537016)=a
8.044890718=a

8 0

3 years ago

42. The diagram represents a ramp in the shape of a right triangle and the lengths

oee [108]

The length of the ramp is 61 feet.

<h3>What is the length of the ramp?</h3>

In order to determine the length of the ramp, Pythagoras theorem would be used.

The Pythagoras theorem: a² + b² = c²

where a = length

b = base

c = hypotenuse

√11² + 60²

√121 + 3600

√3721

= 61 feet

Please find attached the image of the ramp. To learn more about Pythagoras theorem, please check: brainly.com/question/14580675

5 0

2 years ago

780,573 -229,615= Estimate=

Mila [183]

550,000 or 600,000

780,573 estimates to 780,000 or 800,000
229,615 estimates to 230,000 or 200,000
780,000-230,000=550,000
or
800,000-200,000=600,000

6 0

4 years ago

A movie theater has a seating capacity of 235. The theater charges $5 for children, $7 for students, and $12 for adults. There a

Annette [7]

Answer:

61 adults, 122 children, and 52 students

Step-by-step explanation:

Let a = amount of adults, c = amount of children, and s = amount of students.

Let's go over what we know:

total amount: 235

twice as many children as adults

children: $5

student: $7

adult: $12

Using this information, we can determine the following:

a = 1/2c

235 = c + s + a

1706 = 5c + 7s + 12a

Since we know a = 1/2c, plug 1/2c in for a. The equations become:

235 = c + s + 1/2c

1706 = 5c + 7s + 6c

Now, solve the inequalities by substitution.

235 = c + s + 1/2c

235 = 1 1/2c + s

-s + 235 = 1 1/2c

-s = -235 + 1 1/2c

s = 235 - 1 1/2c

Now, plug in the value for s into the other equation.

1706 = 5c + 7(235 - 1 1/2c) + 6c

-5c + 1706 = 7(235 - 1 1/2c) + 6c

-5c = -1706 + 7(235 - 1 1/2c) + 6c

-5c = -1706 + 1645 - 21c/2 + 6c

-5c = -61 - 21c/2 + 6c

-5c = -61 - 9c/2

c = 122

Now, plug in the value for c into the value of s.

s = 235 - 1 1/2(122)

s = 235 - 183

s = 52

Finally, plug in the value for c into the value of a.

a = 1/2(122)

a = 61

To check, add up all values to make sure they equal 235.

61 + 52 + 122 = 235.

Therefore, the final answers are 61 adults, 122 children, and 52 students.

7 0

3 years ago