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zubka84 [21]
3 years ago
11

sprinter started his race slowly and then increased his speed by 14.8 miles per hour to reach a top speed of 23 miles per hour.

What was the sprinter's speed before he increased his speed?
Mathematics
1 answer:
ruslelena [56]3 years ago
6 0

Answer:

8.2

Step-by-step explanation: i think its 8.2

i dont know tho

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Please help me!!<br> Show workings.
SCORPION-xisa [38]

Answer:

a = 31°

b = 149°

c = 149°

d = 31°

4 0
3 years ago
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Hayley is considering two gym membership plans. The plans are detailed here.
Novosadov [1.4K]

Option 2: y = 3x+50 is the right answer

Step-by-step explanation:

We have to convert the details given in Plan one to an equation

Let x be the number of visits to the gym

and y be the total cost for plan one

So,

As each visit costs $3, x number of visits will cost 3x

One time fee is $50

So the equation can be written as:

y = 3x+50

Hence

Option 2: y = 3x+50 is the right answer

Keywords: Slope equations of lines

Learn more about slope at:

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5 0
3 years ago
HEY! help pleaseee :)
Anna11 [10]

Answer:

97

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Which polynomial identity will prove that 19 = 27 − 8?
3241004551 [841]
The answer is Difference of Cubes.

Difference of cubes is a³ - b³.
27 can be written as 3³ (= 3 × 3 × 3 = 27). So, a = 3.
8 can be written as 2³ (= 2 × 2 × 2 = 8). So, b = 2.

Difference of cubes can be expressed as:
       a³ - b³ = (a - b)(a² + ab + b²)
⇒   3³ - 2³ = (3 - 2)(3² + 3×2 + 2²) = 1 × (9 + 6 + 4) = 1 × 19 = 19
⇒  27 -  8  = 19


5 0
3 years ago
Avery uses a blend of dark chocolate and milk chocolate to make the ice cream topping at her restaurant. She wants to buy 10 kg
Ksju [112]

Answer:

d = m + 10\\d+m=150

Step-by-step explanation:

If Avery wants the amount of dark chocolate (d) to be 10 kg higher than the amount of milk chocolate (m), then the following relationship must be true:

d = m + 10

If the total amount of chocolate must equal 150 kg, then:

d+m=150

The system of equations that represent this situation is:

d = m + 10\\d+m=150

5 0
3 years ago
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