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3 years ago

Hey guys could someone help me out with this?

Mathematics

1 answer:

Natalka [10]3 years ago

7 0

Answer:

3.33km

Step-by-step explanation:

Multiply 12 by 5

=60

60km^2 is one layer of 12x5km, so every 60 square kilometers is one layer.

Keep adding layers until you're as close as can be to 200.

You'll end up with 3 layers and 20 more square kilometers.

20 is one-third of 60, so your answer is 3 1/3, or 3.33km^2

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In the first quadrant you start at 3,7 and move 3 units down what is the point you end up with

OLEGan [10]

Answer:

(3, 4).

Step-by-step explanation:

The x coordinate stays the same but the y coordinate becomes 7 - 3 = 4.

4 0

3 years ago

When 80% of a number is added to the number, the result is 216. What is the number?

azamat

80%x + x = 216
0.8x + x = 216
1.8x = 216
x = 216/1.8
x = 120

hope this help

8 0

3 years ago

Jing is helping the kindergarten teacher put together bags of crayons. Each bag has 4 crayons, and 1/4 of the crayons in each ba

wariber [46]

Answer:

A) $\frac{3}{12}$

Step-by-step explanation:

Given:

Jing is helping the kindergarten teacher put together bags of crayons.

Each bag has 4 crayons, and 1/4 of the crayons in each bag are green.

What fraction of the crayons in 3 bags are green?

<u>Solution:</u>

1 bag contains number of crayons = 4

1 bag contains number of green crayons = $\frac{1}{4} \ of\ 4 = \frac{1}{4}\times4=1$

Total number of bags = 3

Total number of crayons in 3 bags = 4 $\times$ 3 = 12

1 bag contains number of green crayons = 1

Total number of green crayons in 3 bags = 1 $\times$ 3 = 3

Fraction of the green crayons out of total = 3 out of 12 = $\frac{3}{12}$

Therefore, fraction of the crayons in 3 bags are green are $\frac{3}{12}$

7 0

4 years ago

Write -2i + (9 - 3i) - (6 - 10i) as a complex number in standard form. 3 - 5i 3 + 5i 3 + 16i 12 - 16i

Ierofanga [76]

Answer:

3 + 5i

Step-by-step explanation:

Given

- 2i + (9 - 3i) - (6 - 10i) ← distribute parenthesis

= - 2i + 9 - 3i - 6 + 10i ← collect like terms

= 3 + 5i

7 0

3 years ago

2 points

Goshia [24]

Answer:

C. I and III

Step-by-step explanation:

The 2 at the upper left means the divisor is x - 2.

The result at the bottom means the quotient is 3x^2 - 4x + 2.

Answer: C. I and III

8 0

3 years ago