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leva [86]
3 years ago
10

Pls do fast due today Find DE.

Mathematics
1 answer:
andrey2020 [161]3 years ago
6 0

Answer:

Step-by-step explanation:

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Find three consecutive integers such that three times the sum of the first two is eight more than 5 times the third.
klasskru [66]
Consecutive integers are numbers one after the other on the number one (ie. 1,2,3,4,5 or 203,204,205).

times= multiplication
sum= addition
more than= addition
is= equal sign

x= first integer
x+2= second integer
x+3= third integer

3(x + (x + 2))= 5(x + 3) + 8
add inside parentheses

3(2x + 2)= 5(x + 3) + 8
multiply 3 and 5 by their parentheses

(3*2x) + (3*2)= (5*x) + (5*3) + 8
multiply in parentheses

6x + 6= 5x + 15 + 8

6x + 6= 5x + 23
subtract 5x from both sides

x + 6= 23
subtract 6 from both sides

x= 17 first integer

x + 1= 17 + 1= 18 second integer

x + 2= 17 + 2= 19 third integer


CHECK:
3(x + (x + 2))= 5(x + 3) + 8
3(17 + (17 + 2))= 5(17 + 3) + 8
3(17 + 19)= 5(20) + 8
3(36)= 100 + 8
108= 108


ANSWER: The three consecutive integers are 17, 18 and 19.

Hope this helps! :)
7 0
3 years ago
Please help with this & show your working out to get brainliest. And please don’t trick me.
timurjin [86]
The lowest is the square root of 9 which is 3. After that is 3.15, 13/4 (3.25), 3 1/2 (3.50). My explanation would be: first I found out the square root of 9. Then divided 13 by 4.
7 0
3 years ago
Simon makes 5 towers of 10 blocks each.
Assoli18 [71]
110 could possibly be the answer, i don’t know tho.
6 0
4 years ago
Read 2 more answers
In ΔEFG, the measure of ∠G=90°, FG = 1.5 feet, and EF = 7.5 feet. Find the measure of ∠F to the nearest degree.
fomenos

Answer:

  78°

Step-by-step explanation:

The mnemonic SOH CAH TOA reminds you of the relations between angles and sides of a right triangle. In particular, ...

  Cos = Adjacent/Hypotenuse

  cos(F) = FG/FE = 1.5/7.5 = 0.2

The inverse cosine function is used to find the angle:

  ∠F = arccos(0.2)

  ∠F ≈ 78°

8 0
3 years ago
Read 2 more answers
Each unit on the coordinate grid represents 1 yard, the rectangular pool and triangular hot tub shown are both in need of covera
Hunter-Best [27]
The answer is 29 square yards.
4 0
3 years ago
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