–3 • 5 • (–6) • 4
B.
–7 • (–3) • (–9) • 0
C.
–4 • (–6) • (–3) • (–5)
D.
–3 • 4 • (–2) • (–7)
The plane flew a total of 2,220 miles at an average speed of 555 miles per hour. The duration of the flight can be determined by using the formula for time (t = d/v). In our case, the flight took 4 hours.
To calculate the duration of the flight, we can use the following formula for time (t), which is:
t = d/v, where d is the total distance traveled and v is the average speed.
Given our values: d = 2,220 miles and v = 555 miles per hour, plug these into our formula and solve for t (time in hours). So, our calculation becomes: t = 2,220 miles / 555 miles per hour.
The result of this calculation is t = 4hours. Therefore, it took the plane 4 hours to fly a total distance of 2,220 miles at an average speed of 555 miles per hour.
#SPJ2
we know that
Eva needs pound of clay for one piece and pound of clay for the other piece
Step 1
Find the total pound of clay for the two pieces
Eva has bags of clay that weigh pounds each.
Step 2
Find the total weigh of the bags of clay
Part a ) How many bags of clay will Eva need to make both pieces of pottery?
by using proportion
therefore
the answer Part a)
she needs bags
Part b) How many pounds of clay will she have left?
Calculate the total weigh of the bags of clay minus the total pound of clay for the two pieces
so
therefore
the answer Part b) is
To make both pieces of pottery, Eva will need a total of 1.3 pounds of clay. As each bag contains 4/5 pounds, she needs to buy 2 bags. After creating the pottery, Eva will have 0.3 pounds of clay left over.
Firstly, we need to identify how much clay Eva needs in total to create both pieces of pottery. For the first piece, she needs 3/5 pound and for the second piece, she needs 7/10 pound of clay. Adding these together provides: pounds which is the total amount of clay needed.
Each bag of clay she has weighs 4/5 pound. To calculate how many bags she needs, divide the total amount of clay required by the weight of each bag: 1.3 ÷ 4/5 = 1.625. As she can't have a fraction of a bag, she will need 2 bags of clay to have enough to create both pieces of pottery.
To calculate how much clay she will have left, we need to subtract the clay she will use from the total clay she buys: (2 bags * 4/5 pound per bag) - 1.3 pounds = 1.6 - 1.3 = 0.3 pounds. Therefore, Eva will have 0.3 pounds of clay left over.
#SPJ2