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Anna35 [415]
3 years ago
8

How can I solve proportions for missing sides in geometry?

Mathematics
1 answer:
Nadya [2.5K]3 years ago
3 0
Try either the Law of Sines or the Law if Cosines to use interior angles to create a ratio to the side proportions.
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A family of five people has $200 to spend on fishing rods and fishing licenses. They spend a total of $20 on licenses. Assuming
dusya [7]

Answer:

36

Step-by-step explanation:

200-20=180

180/5=36

8 0
3 years ago
Read 2 more answers
Joe has read ​30 % of a book. He has 63 more pages to finish. How many pages are there in the​ book?
meriva

Answer:

90 pages

Step-by-step explanation:

30% complete

70% to go = 63 pages

t = total number of pages

0.7t = 63

∴ t = ⁶³/₀.₇

⁶³/₀.₇ = 90

4 0
3 years ago
Madi has $8.80 in pennies and nickels.
shepuryov [24]
Let p = number of pennies.
Let n = number of nickels.

We are given that n= 2p and the total value is $8.80.

We know that a penny = $0.01 and that a nickel = $0.05.

So $0.01p + $0.05n = $8.80.

Substitute 2p for n:
$0.01p + $0.05*2p = $8.80

$0.01p + $0.10p = $8.80

$0.11p = $8.80

p = 80
So n = 2p = 2*80 = 160

Thus there are 80 pennies ($0.8) and 160 nickels ($8.00). The value of all the coins is $8.80.
7 0
3 years ago
At the craft store, Kim bought a bag of marbles. In the bag there were 20 blue marbles and 30 green marbles. What percent of the
Nesterboy [21]

Answer:

60%

Step-by-step explanation:

percent of green marbles = (total number of green marbles / total number of marbles in the bag) x 100

total number of marbles in the bag = 30 + 20 = 50

30 / 50 x 100 = 60%

6 0
3 years ago
Read 2 more answers
Samuel worked 1/4 of a day on Tuesday and 3/8 of a day on Wednesday. Which
Anestetic [448]

Rewrite 1/4 to have 8 as the denominator: 1/4 = 2/8

Now add the two days together:

2/8 + 3/8 = 5/8

Answer: 5/8

3 0
2 years ago
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