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3 years ago

A map scale is 1 cm :50Km.Two cities are 3.8cm apart .How many kilometers is it from on e city to the other

Mathematics

1 answer:

Gennadij [26K]3 years ago

6 0

So what you do is you want to multiply
3.8 × 50=190km

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What is the GCF of 48m5n and 81m2n2

noname [10]

The GCF is 3m^2n <===

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3 years ago

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Translate this sentence into an equation.

motikmotik

Answer:

g = 61.

Step-by-step explanation:

g + 9 = 70 Subtract 9 from both sides of the equation:

g + 9 - 9 = 70 - 9

g = 61.

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3 years ago

If AD equals 3X +3 CD equals X +9, what is the value of X?

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3 years ago

last summer, at camp okey-fun-okey, the ratio of the number of boy campers to girl campers was 8:7. If there were a total of 195

Evgen [1.6K]

The ration of boy campers to total campers is 8:15, and the ratio of girl campers to total campers is 7:15. Using this information, we can answer this question by setting up proportions.

For boys:

$\frac{8}{15} =\frac{x}{195}$

*Cross multiply*

15x=1560

*Divide both sides by 15*

x=104

There are 169 boy campers.

For girls:

$\frac{7}{15} =\frac{x}{195}$

*Cross multiply*

15x=1365

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Hope this helps!!

7 0

3 years ago

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A motorboat takes 5 hours to travel 200 miles going upstream. The return trip takes 4 hours going downstream. What is the rate o

dsp73

Answer:

rate of motorboat: b

rate of current: c

So the rate the boat travels upstream is $b - c$, and the rate it travels downstream is $b + c$

Step-by-step explanation:

d = rt

200 = (b - c)\cdot 5

200 = (b + c)\cdot 4

b - c = 40

b + c = 50

Adding these equations, we get:

2b = 90

b = 45

c = 50 - 45 = 5

Therefore the rate of the boat is 45kph, and the rate of the current is 5kph

Hope this helps :)

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3 years ago