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STALIN [3.7K]
3 years ago
9

The distance between two cities on a map is 4 centimeters. If the scale is 0.5 cm:1 km, how many kilometers apart are the actual

cities?
Mathematics
2 answers:
seraphim [82]3 years ago
5 0

Answer:

8 km

Step-by-step explanation:

            1 km

4 cm x -------- = 8 km

           0.5 cm

777dan777 [17]3 years ago
4 0

Answer: 8 km

Step-by-step explanation:

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Select all ordered pairs that satisfy the function y=4x+3.
shtirl [24]

I suppose that you should have given some pairs to choose from.

Anyway, I can tell you how to do it. Given a pair (a,b), you have to substitute a and b to x and y respectively, and see if you get something true.

For example, the pair (1,7) satisfies the function, because the substitution yields

7=4\cdot 1+3

which is true. On the other hand, the pair (19,3) doesn't satisfy the function, because

3=4\cdot 19+3

is clearly false.

7 0
3 years ago
What is 5% of 100? WILL MARK BRAINLIEST!!!
Lena [83]

Answer:

5

Step-by-step explanation:

5% of 100 is 5

5% as a fraction is 5/100

5/100*100= 5

8 0
4 years ago
Read 2 more answers
The rectangle room is 2 times as long as it wide and its perimeter is 30 meters. Find the dimensions of the room.
Pachacha [2.7K]
Answer:
l = 10 m
w = 5 m

Steps:
Set equations:
l = 2w
30 = 2l + 2w

Substitute 2w with l in second equation to find l:
30 = 2l + 2w
30 = 2l + l
10 = l

Plug in 10 into first equation to find w:
l = 2w
10 = 2w
5 = w
4 0
4 years ago
Plz asnwer i will give brainlest plzz no links or trolls
Zarrin [17]

Answer:

$452,340

Step-by-step explanation:

Fencing (perimeter):

255+255=450+450+450= 1860 feet

1860 / 3 = 620 yards

620 x $27 = $16,740

Seed (area):

Square area: a = lw

a = 450 x 450

a = 202500 feet

202500 x $2 = $405,000

Triangle area: a = 1/2bh

a = 1/2 x 255 x 120

a = 1/2 x 30600

a = 15300

15300 x $2 = $30,600

Add the cost of the fencing and seeds up.

$16,740 + $405,000 + $30,600 = $452,340

3 0
3 years ago
Run a multiple regression where the dependent variable is ratings and the independent variables are star and fact. Use data from
Vanyuwa [196]

Answer:

See explaination

Step-by-step explanation:

See attachment for diagram

The r value is 0.373 (low). This implies a weak correlation between the dependent and independent variables for this sample.

The overall p- value for the regression model is 0.0017. This implies that at least one of the two independent variables (x1 or x2) in the model is significant predictor of the dependent variable y.

p- values for the both "Fact" and "Star" are < 0.05. This means both the independent variables are significant predictors of the "Rating" at 95% confidence level. The variable "Fact" is significant at 99% level of confidence also. This means the rating viewers award to a movie depends upon both the storyline (fact or Fiction) and the presence or absence of stars.

Expected rating for a fact based movie with no stars = 1.7991(1) + 1.2586(0) + 12.5685 = 14.37

Expected rating for a fiction based movie with a star = 1.7991(0) + 1.2586(1) + 12.5685 = 13.83

So, one may expect a fact based movie without any stars to get better ratings than a fiction based movie with one star.

7 0
3 years ago
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