Need help with these two questions

Mathematics

1 answer:

MAVERICK [17]3 years ago

5 0

744848848484848484848

You might be interested in

Can someone help me please

Gnom [1K]

Answer:

The mode of sunday is 15 is correct

3 0

3 years ago

Read 2 more answers

For a car moving at a constant speed, the distance traveled varies directly with the time spent driving. If such a car travels 5

kaheart [24]

Well if we have 180 miles in 9 hours then by division we can work out that in 1 hour the car travels 20miles. so to get to 140 from 20 we times by 7 so we do the same to the hours which would be 7 hours

4 0

3 years ago

At the concession stand of a school foot ball game, sandwiches cost $1.50 and a bottle of water costs $.90. The school sells 40

Bas_tet [7]

40+80=120. 40/120=.3333.... or 1/3. so sandwiches percent is 33% and so 100-33= 67 so the bottles of water would be 67%

6 0

3 years ago

Read 2 more answers

ciara is making a new outfit. She needs 2 1/2 yards of fabric for the shawl. She needs 1 7/8 yards of fabric for the dress. if s

lisov135 [29]

First find out the total amount you need for your fabric.
2 1/2 yards for the shawl1 7/8 yards for the dress
The total would be 2 4/8 + 1 7/8 = 4 1/8 yards
Since you already have 9/10 of a yard, just subtract from your total amount.
3 90/80 + 72/80 = 3 18/80 = 3 9/40 *good to simplify*
She needs 3 9/40 yards more of fabric.
You already have 9/10 of fabric so you don't need to pay for it.You need to just pay for the 3 9/40 yards.
3 * 6.87 = 20.61(6.87/ 40) * 9 = 1.54575
20.61 + 1.54575 = 22.15575 *round it*
You need $22.16 to make the dance outfit.

7 0

3 years ago

Read 2 more answers

Please help quickly for 5 stars and brainliest!!

alexandr402 [8]

1.
Height h = 240 feet
We insert it into formula.
$240 = -16 t^{2} +128t$
Now we solve this for t:
$16 t^{2} -128t +240 = 0 /16 \\ t^{2} - 8t +15 =0 \\ t_{1} = 5 t_{2} = 3$

We have two answers as the rocket will pass this height on it's way up and down.

2.
Height h = 0 feet
We insert it into formula.
$0=-16 t^{2} +76t + 2$
Now we solve this for t:
$16 t^{2} - 76t -2 = 0 /2 \\ 8t^{2} - 38t - 1 = 0 \\ t_{1} = 5 t_{2} = -1$
We do not consider solution -1 as the time can not be negative. Our solution is 5s.

3.
Height at bottom of hill h = 0 feet
We insert it into formula.
$v^{2} = 64 * 0 = 0 ft/s$

7 0

4 years ago