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Naily [24]
3 years ago
5

Please answer these questions!!

Mathematics
1 answer:
daser333 [38]3 years ago
3 0
11. Assuming distance is proportional to time,
.. (3 h)/(7 h) = d/(665 km)
.. d = (665 km)*(3/7) = 285 km . . . . . . selection B

12. (30 L)/(1.5 L/min) = 20 min . . . . . . selection C
You might be interested in
Gayle is making gift bags and must tie 250 ribbons to them. If Gayle can tie 4 ribbons every 10 minutes, how long will it take G
mart [117]

Answer:

625 minutes

Step-by-step explanation:

Given that:

Time taken to tie 4 ribbons = 10 minutes

Number of ribbons to be tied = 250

To find:

Time taken to tie 250 ribbons.

Solution:

First of all, we need to find the time taken to tie one ribbon.

And then we can multiply it with 250 to find the time taken to tie all the 250 ribbons.

For finding the time to tie one ribbon, we need to divide the time taken to tie 4 ribbons with 4.

Time taken to tie 1 ribbon = \frac{10}{4} = 2.5 minutes

Time taken to tie 250 ribbons = 2.5 \times 250 = <em>625 minutes</em>

4 0
3 years ago
if the store purchased a kitchen appliance for $42 and sold it for $58.80, what was the percent markup?
oksano4ka [1.4K]

Answer:

40%

Step-by-step explanation:

Percent markup = new price - original price/original price

Do the subtraction first.

58.80 - 42.00 = 16.80

Now do the division

16.8/42 = 0.40

Change the decimal to a percent by moving the decimal two place to the right.

0.40 = 40%

6 0
2 years ago
Please help on all of the questionsssss!
ladessa [460]

Answer:

Yes

Step-by-step explanation:

They are similiar because the big triangle is a dialated version of the first one

5 0
3 years ago
If the maximum value of y=-3x² + mx + 10 is 37, find the values of m.​
uysha [10]

Step-by-step explanation:

y = -3x² + mx + 10

dy/dx = -6x + m.

When dy/dx = 0, -6x + m = 0. => x = m/6.

We have y = -3(m/6)² + m(m/6) + 10 = 37.

=> -m²/12 + m²/6 = 27

=> -m² + 2m² = 324

=> m² = 324

=> m = 18 or m = -18.

5 0
3 years ago
Read 2 more answers
Identify the pattern rule for this sequence: 2, 8, 7, 13, 12, 18, 17…
Leni [432]

Answer:

you go up 6 then back down 1 then up 6 again and back down 1 again and repeat

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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