MATHEMATICS HIGH SCHOOL

50% of all the cakes Lucy bakes that week were party cakes: one fifth were fruit cakes and the remainder were sponge cakes. What percentage of cakes were sponge cakes ?

Answers

Answer 1
Answer: 50%=5/10 1/5=2/10 5/10+2/10=7/10 10/10-7/10=3/10 so 3/10 were sponge cakes

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What are three equivalent fractions to 4/11

Answers

4/11 (2/2) = 8/22

4/11 (3/3) = 12/33

4/11 (4/4) = 16/44
8/22
12/33
44/121
63872/175648

N2 = 39


HELP YALL ILL GIVE BRAINLY

Answers

Answer: 78

Step-by-step explanation: multiply 39 by 2
The answer to this question is 78

How many times greater is the elevation of Tammy’s house than the elevation of the ocean’s surface at 2 p.m.? WHO EVEN HELP GET PRIZE FROM ME:) BE RIGHT THO MESSAGE ME IF U GOT IT RIGHT

Answers

Answer:

the answer is 9.9

Step-by-step explanation:

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1. At a fundraiser breakfast, the bill for 3 glasses of orange juice and 5 pancake specials is $7.60, whereas the bill for 1 glass of orange juice and 2 pancake specials is $2.90. a. Write a system of 2 equations to model this problem. Let j stand for the price of a glass of juice and let p stand for the price of a pancake special. b. Use the substitution method to solve the system of equations. c. What would the bill be for 1 glass of orange juice and 1 pancake special?

Answers

a.
If:
j - the price of a glass of juice
p - the price of a pancake special
Then:
3j + 5p = 7.60
j + 2p = 2.90

b.
If:
j + 2p = 2.90
Then:
j = 2.90 - 2p
We can substite j in the first equation.
If:
3j + 5p = 7.60
j = 2.90 - 2p
Then: 
3×(2.90-2p) + 5p = 7.60
8.70 - 6p + 5p = 7.60
8.70 - p = 7.60
⇒ p = 8.70 - 7.60
⇒ p = 1.10

If:
j = 2.90 - 2p
p = 1.10
Then:
j = 2.90 - 2×1.10
j = 2.90 - 2.20
j = 0.70

Thus, the price of a glass of juice is $0.70 and the price of a pancake special is $1.10.

c.
If:
p = 1.10
j = 0.70
Then: 
j + p = 1.10 + 0.70 = 1.80

Thus, the bill for 1 glass of orange juice and 1 pancake special is $1.80.

from 1970 to 1980 the consumer price index increased from 38.8 to 82.4. If a container of onion dip cost $0.48 in 1970 and the price of onion dip increased at the same rate as the CPI from 1970 to 1980, by approximately how much did the price of a container of onion dip increase from 1970 to 1980

Answers

We need to find the percent increase from 38.8 to 82.4, so

x * 38.8 = 82.4
x = 82.4/38.8
x = 2.1237

Multiply by 100 to convert to percentage (move decimal 2 places to the right)

2.1237 = 212.37%

Now we can apply this percentage increase to the onion dip...

0.48 x 212.37% =
0.48 x 2.1237 = 1.019 
 
Round to the nearest cent $1.02 is the amount of increase.  Now add it to the original price to get today's price...

$1.02 + .48 = $1.50
 

Answer:

C.

$0.54

Step-by-step explanation:

Mr.Anderson drove 168 miles in 3 1/2 horurs. He then drove the next 2 1/4 hours at a rate of 5 miles faster than the first rate. How many miles did Mr. Anderson drive during the 5 3/4 hours?

Answers

find rate of first drive
168/3.5=48mph
5mph more than 48=53

2.25 times 53=119.25


total is
168+119.25=287.25 miles
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Tomas bought a book that cost $18. it was on sale for 84% of its original price. how much did tomas pay