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3 years ago

14

You run around the perimeter of a baseball field at a rate of at least 13 feet per second. Which of the following are possible a

mounts of time that it takes you to run around the baseball field? 60 seconds 65 seconds 70 seconds 75 seconds

1 answer:

Darya [45]3 years ago

4 0

Answer:

i am stuck on this too.

Step-by-step explanation:

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Lena will use 7 cups of apples to make 4 batches of applesauc. Which expression shows the number of cups of apples in each batch

astraxan [27]

Answer: 1 3/4 cups of apples in each batch

Step-by-step explanation:

STEP 1

Writing out the equation to represent if 7 cups of apples make 4 batches One batch is as a result of how many cups of apples

LET x be number of cups of apples to make each batch

7 cups of apples = 4 Batches

x cups of apples = 1 Batch

STEP 2 Solving by cross multiplication

1 batch x 7 cups of apples = 4 batches X x cups of apples

x cups of apples=1 batch x 7 cups of apples / 4batches

x = 7 / 4 = 1 3/4

number of cups of apples to make each batch= 1 3/4

8 0

3 years ago

On the first Saturday of every month, a local amusement park allows children under the age of 12 to ride for free. Which of thes

DochEvi [55]

Su is the only child under 12 years of age, therefore, she is only child entering for free.

5 0

3 years ago

Directions: Graph each function and give its key characteristics. Use a graphing calculator for the turning points and round to

skad [1K]

Answer:

for example, if f(x)= x^2 + 3

and they gave write f(5)= 5^2 +3

=25+3=28

3 0

2 years ago

The mean absolute deviation is 1.74 inches for the badminton team and 3.02 inches for the basketball team. Which of the followin

maxonik [38]

I believe that answer is B. (The second one)
Hope this helped !!

5 0

3 years ago

A motorboat travels 165 kilometers in 3 hours going upstream and 510 kilometers in 6 hours going downstream. What is the rate of

nikitadnepr [17]

<h3>Rate of the boat in still water is 70 km/hr and rate of the current is 15 km/hr</h3><h3><u>Solution:</u></h3>

Given that,

A motorboat travels 165 kilometers in 3 hours going upstream and 510 kilometers in 6 hours going downstream

Therefore,

Upstream distance = 165 km

Upstream time = 3 hours

<h3><u>Find upstream speed:</u></h3>

$speed = \frac{distance}{time}\\\\speed = \frac{165}{3}\\\\speed = 55$

Thus upstream speed is 55 km per hour

Downstream distance = 510 km

Downstream time = 6 hours

<h3><u>Find downstream speed:</u></h3>

$speed = \frac{510}{6}\\\\speed = 85$

Thus downstream speed is 85 km per hour

<em><u>If the speed of a boat in still water is u km/hr and the speed of the stream is v km/hr, then</u></em>

Speed downstream = u + v km/hr

Speed upstream = u - v km/hr

Therefore,

u + v = 85 ----- eqn 1

u - v = 55 ----- eqn 2

Solve both

Add them

u + v + u - v = 85 + 55

2u = 140

u = 70

<em><u>Substitute u = 70 in eqn 1</u></em>

70 + v = 85

v = 85 - 70

v = 15

Thus rate of the boat in still water is 70 km/hr and rate of the current is 15 km/hr

3 0

3 years ago