Answer:320
Step-by-step explanation:
2/5 of the students surveyed lisen to country. So to make the percentage fit the total student population, you figure out what your 2/5 is in a percetnage. That comes out to 40%. so, 40% of 800 is 320.
Answer:
Infinite Solutions
Step-by-step explanation:
If you look at the equation careful you will see this part "-4y+4y". If you see that the variables cancel each other out leaving 2=2. That means that for any value of y, 2=2. Because the variable cancels itself out it doesn't mater what the variable is. So there is an infinite amount of values you can have for "y".
Answer:
y=1.8
Step-by-step explanation:
first change the fraction into a decimal.
4/5 =0.8
plus the 0.8 to both sides
y=1.8
Answer:
train a weighs 177 and train b weighs 90
Step-by-step explanation:
train a weighs 87 more tons than train b but both combined is 267.
a + b = 267
267 - 87 = 180
divide by two to get the weight of train b
180/2 = 90
add the 87 to find the weight of train a
90 + 87 = 177
check
90 + 90 + 87 = 267
this is my first time answering a question, hope this helped :)
