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ad-work [718]
3 years ago
15

Dan is watching the birds in his backyard he watches none of them or 45% are sparrows how many birds are in his backyard

Mathematics
1 answer:
nadezda [96]3 years ago
3 0

Answer:

If 9 of the sparrows is 45% of the birds in the backyard, 9/x = 45/100.

Cross multiply to get 9 * 100 = 45x; simplified is 900 = 45x or 20.

This means that there are 20 birds in the backyard. You can check this by dividing 9/20 which equals 45%

none??' you mean nine?

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A spaceship is traveling at a steady rate. The table shows the distance the spaceship travels in a given period of time. Find th
nika2105 [10]

The distance of the spaceship in discuss as in the task content given can be evaluated as; 800miles.

<h3>What is the distance the spaceship travels in 4 minutes?</h3>

The distance travelled by the spaceship in discuss can be evaluated by means of the slope of the linear relationship as follows;

Hence it follows from ratios that by observation, the linear relationship has a slope of 200mi/min.

Consequently, we can evaluate the distance travelled after 4 minutes as;

Distance = 200 × 4 = 800mi.

Ultimately, the distance travelled per minute by the spaceship is; 800mi.

Remarks:

600 miles

520 miles

800 miles

1,080 miles

Read more on ratios;

brainly.com/question/13513438

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4 0
2 years ago
A recent article in a university newspaper claimed that the proportion of students who commute more than miles to school is no m
Naddika [18.5K]

Answer:

The null hypothesis is H_0: p \leq x, in which x is the proportion tested.

The alternative hypothesis is H_1: p > x

Step-by-step explanation:

A recent article in a university newspaper claimed that the proportion of students who commute more than miles to school is no more than x.

This means that at the null hypothesis, we test if the proportion is of at most x, that is:

H_0: p \leq x

Suppose that we suspect otherwise and carry out a hypothesis test.

The opposite of at most x is more than x, so the alternative hypothesis is:

H_1: p > x

4 0
3 years ago
Choose the equation below whose axis of symmetry is x = 0. (1 point) y = x2 + 2x y = x2 − 16x + 58 y = x2 + 2 y = x2 − 4x + 2
anygoal [31]
The equation y = x^2 has axis of symmetry of  x = 0

The answer to the question is y = x^2 + 2  which is y = x^2 moved vertically up to 2 units
6 0
3 years ago
Read 2 more answers
Factors of -49 and add up to 14
Salsk061 [2.6K]

1,2,7,14 would be your answer :)

7 0
4 years ago
Convert 120435 (5square ) into decimal numbers​
Lapatulllka [165]

Answer:

347.037461955

Step-by-step explanation:

If you are taking the square root of 120,435. I would just put it into a calculator.

5 0
3 years ago
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