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lys-0071 [83]
3 years ago
10

5 times the difference of a number and 20 is the same as half the sum of 4 more than four times a number

Mathematics
1 answer:
Alona [7]3 years ago
5 0
5*(n-20)= (4n+4) / 2 is the equation, please say what you need answered.
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Please answer both A. and B.<br><br> Thank you in advance!!!
Nitella [24]

Answer:

175 ft

Step-by-step explanation:

From the question,

(a) ΔABC and ΔEDC are similar because all the angles in ΔABC is equal to the corresponding angles in ΔEDC.

I.e, ΔABC is equiangular to ΔEDC. (AAA).

(b) From the diagram.

for similar angle, ratio of corresponding sides are equal

100/d = 4x/7x

100/d = 4/7

where d = distance across the river

solve for d

d = (100×7)/4

d = 175 ft

8 0
2 years ago
What units will you use to measure an Indian ocean
Anastaziya [24]

Answer:

Kilometers most likely for any other measurement would be to small to do so otherwise.

8 0
2 years ago
matthew scored a total of 168 points in basketball this season. He scored 147 of those points what perenct of his total points d
natka813 [3]
88% not sure but I think so if it’s not the answer I’m sorry.
7 0
3 years ago
3.12 X 10 to the power of 3
NikAS [45]

Answer:the answer is 3120

5 0
3 years ago
Read 2 more answers
Is 21,063 divisible by three? If it is, write a number as a product of three and another factor if not, explain
Zarrin [17]
Twenty-one thousand and sixty-three divided by three is 7021

First, take any number (for this example it will be 492) and add together each digit in the number (4+9+2 = 15). Then take that sum (15) and determine if it is divisible by 3. The original number is divisible by 3 (or 9) if and only if the sum of its digits is divisible by 3 (or 9).If a number is a multiplication of 3 consecutive numbers then that number is always divisible by 3. This is useful for when the number takes the form of (n * (n - 1)*(n + 1))Example: 492 (The original number). 4 + 9 + 2 = 15 (Add each individual digit together). 15 is divisible by 3 at which point we can stop. Alternatively we can continue using the same method if the number is still too large: 1 + 5 = 6 (Add each individual digit together). 6 ÷ 3 = 2 (Check to see if the number received is divisible by 3). 492 ÷ 3 = 164 (If the number obtained by using the rule is divisible by 3, then the whole number is divisible by 3)
4 0
3 years ago
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