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Novosadov [1.4K]
3 years ago
15

On her pogo stick Lila made 24 hops in 30 seconds. At this rate, how many hops will she make in 50 seconds?

Mathematics
1 answer:
alex41 [277]3 years ago
4 0

40 hops in 50 seconds


24/30 = x/50

cross multiplication

30x=24x50

30x=1200

x=40

24/30=0.8          40/50=0.8

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Billy drove 1 half of the 7.5 miles between his house and the mall. How many miles did he drive?
lara31 [8.8K]
Billy drove 3.75 miles. You find the answer by dividing 7.5 by 2
8 0
3 years ago
Chad gets an annual salary of 25,000. He and his family spend 3500 per year on food. What percent of his salary is spent on food
Advocard [28]

Answer:

\frac{x}{100} x 25000 = 3500

x x 250 = 3500

x = 3500/250

x = 350/25

x = 14%

7 0
3 years ago
I need help with this and fast if possible
11Alexandr11 [23.1K]

Answer:

<em>The answer is Hence Proved</em>

Step-by-step explanation:

       Given that CB║ED ,  CB ≅ ED

       To prove Δ CBF ≅ Δ EDF

  •       CB ≅ ED   ( Given )

        This means that the length of CB is equal to ED

        As CB║ED The following conditions satisfies when a transversal cut

        two parallel lines

  •    ∠ EDF = ∠ FBC   ( Alternate interior points )
  •    ∠ DEF = ∠ FCB   ( Alternate interior points )

       ∴ Δ CBF ≅ Δ EDF    ( By ASA criterion)

        The Δ CBF is congruent to Δ EDF By ASA criterion .

    <em>    Hence proved </em>

6 0
3 years ago
The diameter of the moon is about 3500 km. Approximate the surface area of the moon using the formula for the surface area of a
horrorfan [7]

Answer:

3.8465 *10^7 square kilometers

Step-by-step explanation:

The surface area of a sphere can be found using the formula SA=4\pi r^2. Since the diameter is 3500 km then its radius is half of this. 3500 divided in two is 1,750 units. Substitute r=1,750.

SA=4\pi r^2\\SA = 4 \pi (1750)^2\\SA = 4 \pi *3,062,500\\SA =38,465,000

The surface area of the moon is about 38,465,000 square kilometers. Write this is scientific notation using base. 3.8465 *10^7

5 0
2 years ago
Kelly drew a circle with a diameter of 8cm Paige drew a circle with a radius of 3cm approximately how much larger is the area of
nlexa [21]

Answer:

15.7

Step-by-step explanation:

d = 2r

d = 8 thus r = 4

area (kelly) = 4 x4 x \pi = 16\pi

area (paige) =  3 x 3 x \pi = 9 \pi

difference = 16 \pi - 9 \pi = 5 \pi = 15.7

8 0
3 years ago
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