Answer:
steve need to buy 4 packages.
Step-by-step explanation:
1 package=10markers. 40 marker= 40/10=4
<h2>A can complete the work in 7*6 hrs = 42 hrs.
</h2><h2>
</h2><h2>A can complete in 1 hr = 1/42 part.
</h2><h2>
</h2><h2>B can complete the work in 7*8 hr = 56 hrs.
</h2><h2>
</h2><h2>A&B together do in 1 hr = 1/42 + 1/56 = 7/168 = 1/24 part. So they will do in 8 hrs = 8*1/24 = 1/3 part.
</h2><h2>
</h2><h2>Hence they need 1÷1/3 = 3 days to complete the work.</h2>
3y + 5 = 47
Subtract the 5 so you have 3y on the left side and move it to the other side.
Now it’s:
3y = 47-5
3y = 42
Now, divide 3y by 3, so we get y by itself. Do the same thing to the other side.
y = 14
Answer:
b. 8•1=8
Step-by-step explanation:
When a factor is multiplied by 1, the product will equal the factor.
Answer:
5
Step-by-step explanation:
13 = -2(y - 4) + 3y
13 = -2y + 8 + 3y
13 = y + 8
5 = y
y = 5
