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grin007 [14]
2 years ago
7

Solve by substitution y=x+4, y=2x+5

Mathematics
1 answer:
Amiraneli [1.4K]2 years ago
4 0
X+4=2x+5
-1=x
hope this helps
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Multiply 9· (-1) can u pls help me with this q
kirill115 [55]
A positive times a negative will always be negative
9 x -1 = -9
-9, Hope this helps!
6 0
3 years ago
Select all ratios that are in their simplest form. a29:26 b4:28 c25:10 d28:5 e12:19
xxTIMURxx [149]

The correct answer is Option A , D , E.

<h3>What is meant by ratio?</h3>

A ratio in mathematics is a comparison of two or more numbers that shows how big one is in comparison to the other.

<h3>What is meant by ratio in simplest form?</h3>

Ratio in it's simplest form means when the ratio can't be simplified anymore  by cancelling out the common factors.

The ratio in Option(A) can't be simplified anymore because 29 is a prime number.

The ratio in Option(B) can be simplified to 1 / 7.

The ratio in Option(C) can be simplified to 5 / 2.

The ratio in Option(D) can't be simplified.

The ratio in Option(E) can't be simplified because 19 is prime number.

Hence, the correct answer is Option A , D , E.

Learn more about ratios on:

brainly.com/question/2328454

#SPJ4

8 0
2 years ago
​Evaluate the following expression if y = 4
sleet_krkn [62]
15+5•y/2

15+5•4 / 2

15+20 / 2

15+10

=25
3 0
3 years ago
Isosceles triangle ... area and y intercept comparison. WORTH 100 points !!!!
Blababa [14]

Answer:

The answer is in here.

Step-by-step explanation:

https://www.ekslkvkalkdn9uk2g2kglkkkje9jdkflw/. You might have to change some settings to get in.

4 0
3 years ago
Read 2 more answers
Please help me:( I’ve been stuck on this one for so long
Ronch [10]

Answer: A. 9x^2+2x-5


Step-by-step explanation: its just adding the two numbers from right to left so +3-8= -5   then -5x+7x=2x then 6x^2+3x^2= 9x^2 so putting them together equals 9x^2+2x-5


7 0
3 years ago
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