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noname [10]
3 years ago
9

An athletics club has junior

Mathematics
1 answer:
Brums [2.3K]3 years ago
6 0

Answer:

The total number of members are 128 members

Step-by-step explanation:

From the question, mixing the ratio of children to adult, we have ;

7:9

There are 16 more adult members

So if there are x children, then there are 16 + x adults

Thus, the total number of members will be;

16 + x + x = 2x + 16

Now, we have that;

7/16 * (2x + 16) = x

7(2x + 16) = 16x

14x + 112 = 16x

16x-14x = 112

2x = 112

x = 112/2

x = 56

The total number of members is thus;

2(56) + 16 = 128

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Suppose that 30% of all houses need a paint job. Also, 15% of all houses need both a paint job and a new roof. Further, 7% of al
ivann1987 [24]

Answer:

0.0105

Step-by-step explanation:

given that 30% of all houses need a paint job. Also, 15% of all houses need both a paint job and a new roof. Further, 7% of all houses that need a new roof also need new windows.

If total houses are 100, then 30 require a paint along.  15 require both paint and new roof.

Out of 15 houses which require new roof 7% need new windows

i.e. no of houses which need new windows = 15*7%\\=1.05

If there are total 100 houses, 1.05 houses require a new window

So probability that a randomly selectede house needs a new window

= 0.0105

8 0
2 years ago
-5n+8= -7 in two-step equations-integers
Paha777 [63]

Answer:

n=3

Step-by-step explanation:

So the question we are to solve is to be solved by collecting like terms and by division

So let's solve the question

-5n+8=-7

So let's solve

-5n+8=-7

Substrate 8 from both sides

-5n=-15

So let's make n the subject of formula by dividing both sides by -5

n=3

Therefore the final answer for the given question is 3

3 0
3 years ago
cathi scored 6 baskets in each of her last 3 basketball games. Each basket was worth 2 points. how many points did cathi score i
jonny [76]

Answer:

p=36

Step-by-step explanation:

3(6*2)=p  

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Sorry if its hard to understand I'm new to anwering questions on brainly

4 0
3 years ago
Mia wants to borrow £6000 and repay it, with interest, after two years. she sees two offers for loans: offer 1 compound interest
AURORKA [14]

Answer:

she is wrong, offer 2 results in lower interests

Step-by-step explanation:

total amount paid if offer 1 is accepted:

$6,000 x (1 + 3%)² = $6,000 x 1.0609 = $6,365.40

she will pay $365.40 in interests

total amount paid if offer 2 is accepted:

($6,000 x 1.01) x 1.05 = $6,060 x 1.05 = $6,363

she will pay $363 in interests

Compounding interest refers to interest that earns more interest itself, e.g. in the first offer, the $180 of interests charged for the first year will earn $5.40 in extra interests. While offer 2 only charges $60 in interests during the first year which will in turn earn $3 of interests. The difference between both offers is that interest charges in offer 1 earn more interests than the interest in offer 2 = $5.40 - $3 = $2.40

4 0
3 years ago
Solve for x 4(−7x−2)−10=-3 + 5x+1
Hatshy [7]

Answer:

i think the answer is -33

Step-by-step explanation:

8 0
3 years ago
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