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r-ruslan [8.4K]
3 years ago
7

30 POINTS PLZ HELP

Mathematics
2 answers:
belka [17]3 years ago
7 0

Answer:

1 : 2.56

Step-by-step explanation:

Since the sign and the banner are similar, their ratio of length to width should be the same. Hence, 32/45 = 20/x, with x being the width of the school banner.

32/45 = 20/x

32x = 20*45

x = 900/32

x = 28.125 inches

Now, we can calculate the area of the school banner and the sign:

Area of school banner:

28.125 * 20 = 562.5 square inches

Area of sign:

32 * 45 = 1440 square inches

Hence, the ratio of the area of banner to the area of sign is:

562.5 : 1440

1 : 2.56

Hope this helped!

Andrei [34K]3 years ago
3 0

Answer:

1 : 2.56

Step-by-step explanation:

plz mark brainly

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The radius of a circle is 4 feet. What is the length of a 90° arc? HELP ME PLEASE
Elza [17]

Answer:

6.3feet

Step-by-step explanation:

Given data

Radius= 4feet

The expression for the circumference of a circle is

C= 2πr

Substitute

C=2*3.142*4

C=25.136 feet

Also, a 90° arc is 1/4 of the circumference of a circle

Hence the length of the 90° arc is

=25.136/4

=6.284 feet

=6.3feet

4 0
3 years ago
Given the vent diagram below , if a student is randomly selected , what is the probability that he or she is not attending eithe
Furkat [3]
The correct answer is 28 because all numbers add up to 200 and the number saying that she doesn't attend either is 56, half of 56 is 28. Voila 
5 0
3 years ago
Please if anyone could help me with this questions??
Stels [109]

Answer:

Question 5

a)Simple Interest = Nu 450, Total Amount = Nu 6,450

b)Simple Interest = Nu 250, Total Amount = Nu 12,750

c)Simple Interest = Nu 2,880, Total Amount = Nu 10,880

Question 6

The amount of commission Mindu earned was Nu 4,750

Step-by-step explanation:

Question 5

Simply Interest formula is given as

I = P × R × T

Total Amount = P + I

Where

P = Principal

R = Rate

T = Time in years

I = Interest

a) P = Principal = Nu 6000

R = Rate = 15% = 0.15

T = Time = 6 months , converting to years = 6/12 months = 0.5years

I = Interest = 6000 × 0.15 × 0.5

I = Nu 450

Amount = P + I

= Nu 6000 + Nu 450

= Nu 6,450

Simple Interest = Nu 450, Total Amount =Nu 6,450

b) P = Principal = Nu 12,500

R = Rate = 8% = 0.08

T = Time = 3 months , converting to years = 3/12 months = 0.25 years

I = Interest = 12,500 × 0.08 × 0.25

I = Nu 250

Amount = P + I

= Nu 12,250 + Nu 240

= Nu 12,750

Simple Interest = Nu 250, Total Amount =Nu 12,750

c) P = Principal = Nu 8000

R = Rate = 12% = 0.12

T = Time = 3years

I = Interest = 6000 × 0.12 × 3

I = Nu 2,880

Amount = P + I

= Nu 8000 + Nu 2,880

= Nu 10,880

Simple Interest = Nu 2,880, Total Amount = Nu 10,880

Question 6

We are told in the question that each month:

If sales are up to Nu 75,000, = Mindu earns 3% commission

If sales are over Nu 75,000 = Mindu earns 5% commission

Last month, Mindu has sales of Nu 95,000

Since his sales was above Nu 75,000 he earns a 5% commission

Therefore, the amount he earned as commission is calculated as:

Nu 95,000 × 5%

= Nu 4,750

Therefore, the amount of commission Mindu earned was Nu 4,750

3 0
3 years ago
Leah wants to find 450 + 416 using place value. Write the smaller problems she could use to find the sum. then find the sum.
Gennadij [26K]

Answer:

866

Step-by-step explanation:

She could add the hundreds first: 400+400=800

Then the tens: 50+10=60

Then the ones: 0+6=6

And add them all up: 800+60+6=866

5 0
3 years ago
Read 2 more answers
Factor completely: 10ax + 5bx - 8ay - 4by
kiruha [24]
The answer is (5x - 4y)(2a + b)

10ax + 5bx - 8ay - 4by = 10ax + 5bx - (8ay + 4by) =<span>
                                      = 5x * 2a + 5x * b - (2a * 4y + b * 4y) =
                                      = 5x(2a + b) - 4y(2a + b) = 
                                      = (5x - 4y)(2a + b)</span>
4 0
3 years ago
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