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Vlada [557]
3 years ago
10

4 children share the cost of buying decoration for their friends birthday. If the decorations cost Rupees 87, how much does each

child have to pay? How much ,more money will be needed?
Mathematics
1 answer:
Bingel [31]3 years ago
5 0
If the total cost is $87, and it is split among 4 children, each will pay $21.75, because 87/4= 21.75.
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Jan and Wayne went to the store to buy some groceries. Jan bought 2 cans of corn beef hash and 3 cans of creamed chipped beef fo
olasank [31]
You can solve this by using the system of equations.
Jan - 4.95 = 2H + 3C
Wayne - 5.45 = 3H + 2C

Use elimination.
-3(2H + 3C = 4.95)
2(3H + 2C = 5.45)

Solve. And you'll get:
-6H + (-9C) = -14.85
6H + 4C = 10.9

Cross out -6H and 6H because they cancel out. And you're left with:
-9C = -14.85
4C = 10.9

Add -9C with 4C, and -14.85 with 10.9.
-5C = -3.95

Divide each side with -5.
C = $0.79

Now to figure out what H is, just substitute the C in one of the equations with 0.79.
5.45 = 3H + 2(0.79)
5.45 = 3H + 1.58
-1.58            -1.58
3.87 = 3H
3.87/3 = 3/3(H)
1.29 = H

Finished!
7 0
3 years ago
Read 2 more answers
If the average speed of a garden snail is 0.025 miles per hour and one inch is approximately 2.54 centimeters, how many minutes
BaLLatris [955]

Snail takes 1.5 minutes to travel around one meter

<u>Solution:</u>

Given, the average speed of a garden snail is 0.025 miles per hour  

And one inch is approximately 2.54 centimeters,  

We have to find how many minutes would it take a garden snail to travel one meter?  

Now, let us convert the speed in miles per hour to meters per minute

Then, speed = 0.025 miles per hour  

= 0.025 x 1 mile / 1 hour  

= 0.025 x 1609.34 meters / 60 minutes

= 0.025 x 1609.34 / 60 meters per minute

\begin{array}{l}{=\frac{0.025 \times 1609.34}{60} \text { meters per minute }} \\\\ {=\frac{40.2335}{60} \text { meters per minute }}\end{array}

= 0.670 meters per minute.

Now, 0.670 meters ⇒ 1 minute

Then, 1 meter ⇒ n minutes

So, by criss cross method

n x 0.67 = 1 x 1

n = 1.4912

Hence, snail takes 1.5 minutes approximately to travel 1 meter.

3 0
3 years ago
Read 2 more answers
Which equation has a graph that is a parabola with a vertex at (–1, –1)?
zzz [600]

y = {(x + 1)}^{2} - 1

The one is a vertical translation of the parent function to the left of one

f(x) = {x}^{2}

making it -1.

4 0
3 years ago
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the mass of a dust particle is 0.000000000735 kilograms. What is the mass written in scientific notation?
Romashka-Z-Leto [24]
0.000000000735 = 7.35 x 10^-10 kg
6 0
3 years ago
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Please need help thank
weeeeeb [17]

Answer:

10

Step-by-step explanation:

7 0
2 years ago
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