Answer:
it's 12
Step-by-step explanation:
2 and 2/5 divide by 1/5 is 12
1+3/4+4
4/8
1/2
y-3=-2(x+4)
y - 3 = -2(x + 4)
Answer:

Step-by-step explanation:
To find the number in scientific notation you want to find how many times you have to move the decimal to get the decimal to be right after the first non-zero number. If you move to the left the exponent is positive and if you move it to the right the exponent is negative. The answer would be
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Answer:
It's.
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Step-by-step explanation:
2(2x +3).
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Step-by-step explanation:
x=2y-5 - equation 1
4x+3y=-9 -equation 2
Replace equation 1 in equation 2
4(2y-5)+3y=-9
8y-20+3y=-9
11y=-9+20
11y=11
y=11/11
y=1
If y=1, therefore x=2(1)-5=-3
x=-3,y=1