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3 years ago

What’s the lcd for 1/10& 7/45

1 answer:

8 0

The lowest common denominator is 9/90 and 14/90, multiplying 1/10 by 9/9 and 7/45 by 2/2. I am assuming you know how to solve for LCD? If you don't I can explain in comments.

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There are 125 people in a sport centre. 59 people use the gym. 70 people use the swimming pool. 55 people use the track. 25 peop

klemol [59]

Answer:97/125

Step-by-step explanation:

“As illustrated in the Venn diagram,

We let

U=[The total number of people at the sport center]

This implies that,

n(U)=125

G=[Those who use the gym]

This implies that,

n(G)=59

P=[Those who use the pool]

This implies that,

n(P)=70

T=[Those who use the track]

This implies that,

n(T)=55

a=[Those who use the gym only]

This implies that,

n(a)=59-(6+11+19)=59-36=23

b=[Those who use the pool only]

This implies that,

n(b)=70-(6+19+24)=70-49=21

c=[Those who use the track only]

This implies that,

n(c)=55-(6+24+11)=55-31=14

Also, number of people who use gym and track=11+23+19+6+14+24=97”

8 0

3 years ago

Read 2 more answers

25% of the student's in Mrs.Brown's class like chocolate ice cream. How many students are in her class if 6 students like chocol

Katen [24]

Answer:

24 students.

Step-by-step explanation:

25% is 1/4 of 100.

6*4= The number of students.

7 0

3 years ago

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calculates the sum of the first 8 terms of an arithmetic progression starting with 3/5 and ending with 1/4

N76 [4]

We conclude that the sum of the first 8 terms of the arithmetic sequence is 17/5.

<h3>How to get the sum of the first 8 terms?</h3>

In an arithmetic sequence, the difference between any two consecutive terms is a constant.

Here we know that:

$a_1 = 3/5\\a_8 = 1/4$

There are 7 times the common difference between these two values, so if d is the common difference:

$a_1 + 7*d = a_8\\\\3/5 + 7*d = 1/4\\\\7*d = 1/4 - 3/5 = (5 - 12)/20 = -7/20\\\\d = -1/20$

Then the sum of the first 8 terms is given by:

$3/5 + (3/5 - 1/20) + (3/5 - 2/20) + ... + (3/5 - 7/20)\\\\8*(3/5) - (1/20)*(1 + 2 + 3+ 4 + 5 + 6 + 7) = 3.4 = 34/10 = 17/5$

So we conclude that the sum of the first 8 terms of the arithmetic sequence is 17/5.

If you want to learn more about arithmetic sequences:

brainly.com/question/6561461

#SPJ1

6 0

2 years ago

What is the error in this problem

dlinn [17]

Answer:

10). m∠x = 47°

11). x = 30.96

Step-by-step explanation:

10). By applying Sine rule in the given triangle DEF,

$\frac{\text{SinF}}{\text{DE}}=\frac{\text{SinD}}{\text{EF}}$

$\frac{\text{Sinx}}{7}=\frac{\text{Sin110}}{9}$

Sin(x) = $\frac{7\times (\text{Sin110})}{9}$

Sin(x) = 0.7309

m∠x = $\text{Sin}^{-1}(0.7309)$

m∠x = 46.96°

m∠x ≈ 47°

11). By applying Sine rule in ΔRST,

$\frac{\text{SinR}}{\text{ST}}=\frac{\text{SinT}}{\text{RS}}$

$\frac{\text{Sin120}}{35}=\frac{\text{Sin50}}{x}$

x = $\frac{35\times (\text{Sin50})}{\text{Sin120}}$

x = 30.96

4 0

3 years ago

What’s is the mass of the triangle?

kakasveta [241]

Answer:

3 grams? i dunno

7 0

3 years ago

Read 2 more answers