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nika2105 [10]
3 years ago
12

10x-9y=24 Y=x-2 X= Y=

Mathematics
2 answers:
ankoles [38]3 years ago
6 0

Answer:

Step-by-step explanation:

10x-9y=24....(1)

y=x-2...(2)

Substitute (2) into (1)

10x-9(x-2)=24

10x-9x+18=24

x+18=24

Substrate 18 from both sides

x=6

Substitute the value of x in (2)

y=6-2

y=4

When x=6,y=4

Korvikt [17]3 years ago
6 0
X equals 6 and Y equals four
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Trava [24]
The answer to that question is the sum of the hours he studied for on both days, which will be 1/4 + 3/8.

However, we cannot add fractions with different denominators. In this case, it's 4 and 8.

So if we want to add them, we must make the denominators similar to each other. How to make 4 into 8? We multiply it by 2: 4 x 2 = 8.

BUT when we multiply fractions, we must multiply both the numerator and the denominator by the same number to keep its original value. In this case, if you want to multiply 4 by 2, you must also multiply 1 by 2.

=> SO to make 1/4 into y/8, we will multiply it like this (1 x 2) / (4 x 2) = 2/8

Now we can add the 2 fractions together. 2/8 + 3/8 = (2 + 3)/8 = 5/8. THIS IS YOUR ANSWER.

TL;DR: He studied 5/8 (or 0.625) hour altogether on both days.
5 0
3 years ago
Read 2 more answers
Solve psl brainliest
DIA [1.3K]

Answer:

Mixed number: 8 and 4/100

Improper fraction: 804/100

Since it says to not simplify, those are the answers.

7 0
2 years ago
Read 2 more answers
4n² + 3n +5 and 2n²+3​
joja [24]

Answer:

6n^2+3n+8

Step-by-step explanation:

simplify like terms. keep the exponent the same degree it started as

6 0
2 years ago
Use the distributive property to express the sum of 80+96 as a multiple of 2 numbers with no common factor. 
devlian [24]
Note that 80 is 16*5 and 96 is 16*6.  Therefore, their sum is 16*5+16*6=16*(5+6), or 16*11.  The sum is 176.
5 0
3 years ago
What is the answer for 5x+2=2x-10
Lady bird [3.3K]

5x+2=2x-10

3x=-12

x=-4

4 0
2 years ago
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