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Eduardwww [97]
3 years ago
7

7x - 3 = 5x +5

Mathematics
1 answer:
nlexa [21]3 years ago
6 0
1. 4
2. ?????
3. ??????
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On a test, you earn 92% of the possible points by correctly answering 6 five-point questions and 8 two-point questions. How many
olya-2409 [2.1K]

Step-by-step explanation:

(6×5)+(8×2)=46

92℅=46points

100℅=x

criss cross

<u>92℅x=46</u>

<u>9</u><u>2</u><u>℅</u><u>.</u><u> </u> 92℅

and this is the answer

8 0
3 years ago
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Suppose that we have a population of people, 10% of whom are known to be insane. Suppose that we then randomly select two people
horrorfan [7]

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a

Step-by-step explanation:

because

4 0
3 years ago
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Javier asks his mother how old a tree in their yard is. His mother says, "The sum of 10 and two-thirds of that tree's age, in ye
Sloan [31]

Answer:

His error is adding 10 and 2/3 before multiplying by a(age of the tree)

Step-by-step explanation:

The sum of 10 and two-thirds of that tree's age, in years, is equal to 50.

Correct equation

Sum = addition (+)

two-thirds = 2/3

The tree's age = a

10 + 2/3a = 50

2/3a = 50 - 10

2/3a = 40

a = 40 ÷ 2/3

= 40 × 3/2

= 60

a = 60 years

Javier writes the equation

(10 + two-thirds) a = 50

(10 + 2/3)a = 50

(30+2/3)a = 50

32/3a = 50

a = 50 ÷ 32/3

= 50 × 3/32

= 150/32

a = 150/32

His error is adding 10 and 2/3 before multiplying by a(age of the tree)

5 0
3 years ago
A basket contains 11 pieces of fruit for apples five oranges and two bananas Jonas takes a piece of fruit at random from the bas
wariber [46]

Answer:

the chances are 5/11

Step-by-step explanation:


4 0
3 years ago
3.5+2=2x-10help me HELP ME JIGGABOOS
Genrish500 [490]
3.5 + 2 = 2x - 10
5.5 = 2x -10
+10 +10
—————————
15.5 = 2x
—— ——
2 2

7.75 = x

7.75 is the answer
5 0
11 months ago
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