Step-by-step explanation:
x + y = 6
+ x - y = -2
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2x + 0 = 4
x = 2
2 + y = 6
y = 4
Answer:
The first is equation the second is expression the third is expression and the fourth is equation
Step-by-step explanation:
equations have equal signs and expressions dont
8X5000 is 40000. There's three zeroes in5000 and no zeroes in 8, yet there are 4 zeroes in the answer. This is because you must multiply the non-zeroes, and then add the zeroes from your factors. 8 times 5 is 40, add 3 zeroes to get 40000.
Hope this helps!
It’s the first answer choice
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She would have to score atleast a 74 on the test for her average to be 78
