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Helen [10]
3 years ago
6

Juliana wants to find the mass of a watermelon which unit should she use

Mathematics
1 answer:
disa [49]3 years ago
7 0
I would use grams, because in my country watermelons are small, but if they were huge I would use kilograms
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a store is offering a 20% discount on all sales over $50. If you purchase a shirt and a pair of leans for $62.50, what is the am
vodomira [7]

Answer:

you would receive 12.5% of the discount

Step-by-step explanation:

20% off of 62.50 is 50; so you would pay $50

7 0
3 years ago
You are riding your scooter to a town that is 120 miles away and you can maintain a speed of 30 mph. How long will it take you?
Hitman42 [59]

Answer:

4 hours

Step-by-step explanation:

120 ÷ 30 = 4

Hope this helps. Pls give brainliest.

5 0
3 years ago
Vanessa throws a tennis ball in the air. The function h(t) = -15t2 + 45t + 10 represents the distance in feet, that the ball is
Step2247 [10]

Answer:

43.75feet

Step-by-step explanation:

Given the height of the tennis ball expressed as;

h(t) = -15t^2 + 45t + 10

At maximum height, the velocity of the ball is zero

v = dh/dt

dh/dt = -30t + 45

Since dh/dt = 0, hence;

0 = -30t + 45

30t = 45

t = 45/30

t = 3/2

t = 1.5secs

Substitute t = 1.5 into the expression given

h(1.5) = -15(1.5)^2 + 45(1.5) + 10

h(1.5) = -15(2.25)+67.5+10

h(1.5) = -33.75+77.5

h(1.5) = 43.75feet

Hence the maximum height of the ball is 43.75feet

5 0
3 years ago
A teacher always arranged the content0 of each lessons to Year 10 as teaching and practising learnt skills in the ratio 2:3. α I
Paraphin [41]
I'd say (a) = 52.5 minutes or 52 minutes and 30 second

(b) = 45 minutes
3 0
3 years ago
Roger's Cafe has usual daily earnings of $800. Today, the cafe earned 120% of the usual daily earnings. How much did they earn t
riadik2000 [5.3K]

Answer:

960

Step-by-step explanation:

Over here, I'm going to do it in two ways, and either way works, one is just easier to do out:

1st way:

You can represent the percent 120 as a decimal which is 1.20, then you do 800*1.2.

2nd way:

You can use benchmark percents. You find 10 percent of 800 which is 80 and multiply 80 by 2 to get 160, so 20% is 160 dollars. Then you add 160 to 800 (800+160) and get 960.

Please tell me if you have any questions.

8 0
3 years ago
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