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Radda [10]
3 years ago
14

If a recipe requires 400 grams of potatoes for four people, how many kilograms would be required for 12 people?

Mathematics
2 answers:
STALIN [3.7K]3 years ago
3 0

Answer:

it is 1200

Step-by-step explanation

its direct proportions

so 4 x 3 = 12

400 x 3 = 1200

maks197457 [2]3 years ago
3 0
400g/4 people=100g per person so 12 people would require 1200g
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Alex was biking along a 48 mile trail. First half of the time he was biking twice as fast as the second half of the time. If he
nydimaria [60]

Answer:

The speed in the first part is 16 mph.

Step-by-step explanation:

The total distance is 48 miles. The total time is 4 hours.

In the second part of the trip, he was traveling at speed s for distance d for 2 hours.

In the first part of the trip he was traveling at twice the speed, or 2s, for distance 48 - d, for 2 hours.

speed = distance/time

distance = speed * time

First part of trip:

48 - d = 2s * 2

d + 4s = 48   Equation 1

Second part of the trip:

d = s * 2

d = 2s    Equation 2

Equations 1 and 2 form a system of equations in two unknowns, d and s.

d + 4s = 48

d = 2s

Substitute 2s for d in equation 1.

2s + 4s = 48

6s = 48

s = 8

The speed in the second part is 8 mph.

The speed in the first part is 2s = 2(8) = 16.

The speed in the first part is 16 mph.

Check:

d = 2s = 2(8) = 16

48 - d = 48 - 16 = 32

The second part is 16 miles. The first part is 32 miles.

16 miles at 8 mph takes 2 hours.

32 miles at 16 mph takes 2 hours.

2 hours + 2 hours = 4 hours.

Our answer is correct.

Answer: The speed in the first part is 16 mph.

7 0
3 years ago
The distribution of the amount of money spent by first-time gamblers at a major casino in Las Vegas is approximately normal in s
Leya [2.2K]

Answer:

$720

Step-by-step explanation:

Given :

Mean, m = 600

Standard deviation, s = 120

Z = (x - m) / s

P(Z > x) = 84%

P(Z > x) = 0.84

Zscore corresponding to P(Z > x) = 0.84 will be -0.994

Hence,

-0.994 = (x - 600) / 120

120 * -0.994 = x - 600

119.28 = x - 600

119.28 + 600 = x

719.28 = x

Hence,

X = $720

4 0
2 years ago
Salma Serra purchased a truck. last year she drove the truck 12,340 miles. the fixes costs totaled $1,428 , while variable cost
mario62 [17]

Answer:

20.61952

Step-by-step explanation:

hope it helps

8 0
3 years ago
Please help me with this math question, I'm so confused, I will mark you brainliest
kap26 [50]

Answer:

A) 2

B) 3

C) -2

D) -1

Step-by-step explanation:

All you need to do is trace the given X value to the graph of the function after 'o' in (fog) or (gof). This is the same as finding the value of f(x) or g(x). After finding the value, make that value your x and trace to the new value on the other graph

a) Tracing -1 to y = f(X) gives y= 3. Tracing x =3 to g(x) gives 2

8 0
2 years ago
Or the figure shown on the​ right, find m∠3 and m∠4.
ioda

Answer:

m<3=84

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Step-by-step explanation:

180-43-41=96

180-96=84

4 0
3 years ago
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