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OLEGan [10]
1 year ago
14

David and Mark are marking exam papers. Each set takes David 61 minutes and Mark 1 hour. Express the times David and Mark take a

s a ratio in its simplest form.
Mathematics
1 answer:
Mamont248 [21]1 year ago
5 0
Do you know how to change the 1 hour to minutes
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A health food store sells a mixture of raisins and roasted nuts.
murzikaleks [220]

Answer:

Raisins = 25 kg

Nuts = 15 kg

Step-by-step explanation:

Given that:

Kilograms of snack to be made = 40 kg

Price per kg would be $4.75kg.

Price of 40 kg would be = 4.75 * 40 = $190

Let,

x be the kilograms of raisins

y be the kilograms of nuts

According to given statement;

x+y=40        Eqn 1

4.00x+6.00y=190      Eqn 2

Multiplying Eqn 1 by 4

4(x+y=40)

4x+4y=160    Eqn 3

Subtracting Eqn 3 from Eqn 2

(4x+6y)-(4x+4y)=190-160

4x+6y-4x-4y=30

2y=30

Dividing both sides by 2

\frac{2y}{2}=\frac{30}{2}\\y=15

Putting y=15 in Eqn 1

x+15=40

x=40-15

x=25

Hence,

Raisins = 25 kg

Nuts = 15 kg

8 0
2 years ago
Read 2 more answers
F(x)=x find the graph of f(x)+3
Anastasy [175]
Given that f(x) = x.
Then f(x) + 3 is the graph of f(x) translated 3 units up.
8 0
3 years ago
Usain Bolt ran the 2012 Olympic 100-meter race in 9.63 seconds. If he runs at this rate on a road with a speed limit of 25 miles
djverab [1.8K]

Answer:

3874.5342

Step-by-step explanation:

9.63 divide by 100 = 0.0963

0.0963x40 234= 3874.5342

6 0
2 years ago
Read 2 more answers
HELP DUE IN 10 MINUTES!!
Pavlova-9 [17]

Answer:

x intercept = 26

y intercept = 6.5

Step-by-step explanation:

n/a

3 0
2 years ago
Read 2 more answers
What's time 21/2 hours after 11:45 AM?
Snezhnost [94]
2 and 1/2 hours is 2 hours and 30 minutes
So
1145+230=13:75 (3:15 is your answer)

7 0
3 years ago
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