Answer:
x=7
Step-by-step explanation:
write -2+16x+9x+7=180
then add all like terms (-2+7=5) and (16x+9x=25x)
5+25x=180
-5. -5
25x=175
/25. /25
x=7
Answer: B
Step-by-step explanation:
These fractions are not equivalent.
3/5 is not equal to 4/7 even if you divide or multiply
The y-intercept is the starting point. Since the temperature started at -7, we know that b in y = mx + b has to be -7. m is the slope which in our case is 3 because the temperature is changing every hour. So, because the temperature is going up, it's +3. Our equation should be y = 3x - 7.
Altogether Ed spent 3 hours doing his math and science project. 1 1/4 plus 1 3/4 equals 3