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BabaBlast [244]
2 years ago
11

1.If I have £400 and I give 15% of the total to charity, how much does the charityreceive?​

Mathematics
1 answer:
MakcuM [25]2 years ago
5 0
£400-15% is your equation you use, but I will use the equation of part/whole =percent/100, where a is the variable for the part, w is the variable for the whole (£400) and p is the percent that we are trying to find or use (15%):
a/400 = 15/100; multiply: 400•15= 6000; then divide: 6000/100=60
So we now know that the answer to your problem is that the Charity receives £60
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What is the result of 6÷3/8?
svlad2 [7]

Answer:

16

Step-by-step explanation:

you can convert to a decimal

3 0
2 years ago
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1.The length of a ship model is 3% of the length of the actual ship. The model is 1.5 M long. How long is the actual ship? ____M
Vilka [71]
We have to find 100% of the number. We can use proportion to get it
3% -----------1.5m
100% -------- x
crossmultiply now
3*x=1.5*100
3x=150      /:3 divide both sides by 3
x=50m

2. Similar situation
40% ------------1000
100% -----------x
crossmultiply
40*x=100*1000
40x=100000      /:40
x=2500 - its the answer
8 0
2 years ago
What division problem does the model show?​
garik1379 [7]

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54/3

Step-by-step explanation:

3 0
3 years ago
Graph y = x2 + 10x + 25.<br> Determine the number of solutions.
vesna_86 [32]

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1 solution

Step-by-step explanation:

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7 0
3 years ago
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Given that A=27, B=43 and c=17, solve triangle ABC to the nearest hundredth
katrin2010 [14]
When we are given 3 sides, we try to solve the angles first by using the
law of cosines
cos (A) = [b^2 + c^2 - a^2] / (2 * b * c)
cos (A) = [43^2 + 17^2 -27^2] / (2 * 43 * 17)
cos (A) = [1,849 + 289 -729] / <span> <span> <span> 1,462
</span></span></span>cos (A) = 1,409 / 1,462
cos (A) = <span> <span> <span> 0.96374829001368
Angle A = 15.475

Now that we have one angle, we next can use the
Law of Sines
sin(B) / side b = sin(A) / side a
sin(B) = sin(A) * sideb / sidea
</span></span></span><span>sin(B) = sin(15.475) * 43 / 27
</span><span>sin(B) = 0.26682 * 43 / 27
sin (B) = </span><span>0.424935555555</span>
Angle B = 25.147 Degrees
Remember the arc sine (<span>0.424935555555) also equals </span> <span> <span> <span> 154.85

</span></span></span>Finally, calculating the third angle is quite easy
Angle C =  180 - Angle (A) - Angle(B)
Angle C =  180 - 15.475 - 154.85
Angle C =  9.675

Source:
http://www.1728.org/trigtut2.htm


6 0
2 years ago
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